PRIME-MD indicates Primary Care Evaluation of Mental Disorders; CIDI, Composite International Diagnostic Interview; MDD, major depressive disorder; CBT, cognitive behavioral therapy. Community provider could be any mental health organization.
Results from regression model that used all the data at all time points available to predict each mean at each time point. Error bars indicate SE.
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Miranda J, Chung JY, Green BL, et al. Treating Depression in Predominantly Low-Income Young Minority Women: A Randomized Controlled Trial. JAMA. 2003;290(1):57–65. doi:10.1001/jama.290.1.57
Impoverished minority women experience a higher burden from depression than do white women because they are less likely to receive appropriate care. Little is known about the effectiveness of guideline-based care for depression with impoverished minority women, most of whom do not seek care.
To determine the impact of an intervention to deliver guideline-based care for depression compared with referral to community care with low-income and minority women.
Design, Setting, and Participants
A randomized controlled trial conducted in the Washington, DC, suburban area from March 1997 through May 2002 of 267 women with current major depression, who attended county-run Women, Infants, and Children food subsidy programs and Title X family planning clinics.
Hamilton Depression Rating Scale measured monthly from baseline through 6 months; instrumental role functioning (Social Adjustment Scale) and social functioning (Short Form 36-Item Health Survey) measured at baseline and 3 and 6 months.
Participants were randomly assigned to an antidepressant medication intervention (trial of paroxetine switched to bupropion, if lack of response) (n = 88), a psychotherapy intervention (8 weeks of manual-guided cognitive behavior therapy) (n = 90), or referral to community mental health services (n = 89).
Both the medication intervention (P<.001) and the psychotherapy intervention (P = .006) reduced depressive symptoms more than the community referral did. The medication intervention also resulted in improved instrumental role (P = .006) and social (P = .001) functioning. The psychotherapy intervention resulted in improved social functioning (P = .02). Women randomly assigned to receive medications were twice as likely (odds ratio, 2.04; 95% confidence interval, 0.98-4.27; P = .057) to achieve a Hamilton Depression Rating Scale score of 7 or less by month 6 as were those referred to community care.
Guideline-concordant care for major depression is effective for these ethnically diverse and impoverished patients. More women engaged in a sufficient duration of treatment with medications compared with psychotherapy, and outcome gains were more extensive and robust for medications.
Major depression, a disorder with early onset and often chronic course, imposes a high individual burden of pain, suffering, and disability.1 Ethnic minority patients are less likely to obtain care for depression than white patients2 and are less likely to receive appropriate treatment when they do seek care.3,4 These disparities are partially due to minorities being less likely to be insured,2 which results in poor access to care. In this study, we evaluated whether interventions that promote guideline-concordant treatments for depression among young, predominantly minority women would improve rates of appropriate care and clinical and functional outcomes.
Effective treatments for major depression include antidepressant medications and psychotherapies.5,6 Most US psychiatrists favor the selective serotonin reuptake inhibitors for first-line treatment.7 Two brief, structured psychotherapies, cognitive behavioral therapy (CBT)8 and interpersonal psychotherapy,9 have demonstrated effectiveness in treating psychiatric patients.10-14 However, efficacy trials have been conducted on predominantly white patients in academic psychiatric settings. According to a review conducted as part of a surgeon general's report,2 the studies forming the evidence base for the American Psychiatric Association5 guidelines for depression care included 3860 participants; only 27 were identified as African American and none were of any Latino descent. These trials also included primarily upper socioeconomic status populations. For example, the National Institute of Mental Health Treatment of Depression Collaborative Research Program11 sample included 40% college graduates. These science implementation studies have yielded a large gap in the knowledge base underlying treatment of low-income and minority women with depression, which could contribute to clinician uncertainty about the value of treating this group. This study addresses this gap in the literature by examining outcomes of care for low socioeconomic status and minority women.
Recent studies have examined care delivery systems for treating depression among primary care patients. Although these studies examined a more diverse population than smaller efficacy studies, the participants were predominantly insured and were current patients of a primary health care organization.15-22 An early finding in this literature suggests that management interventions in primary care may be particularly beneficial for minority individuals,23 but this study examined individuals who were already engaged in care. Young minority women, a group at high risk for depression,2 are often uninsured24 and many use county family planning and nutritional programs as a primary location of care. In addition, trauma and posttraumatic stress disorder (PTSD) are more prevalent in these subgroups of women with the lowest education and income.25 New literature suggests that care management strategies are needed to engage low-income minority individuals in treatment.26 Our intervention includes these enhancements. This study broadens the base of our current knowledge by testing whether guideline-based care for depression improves depressive symptoms and functioning in low-income minority women compared with women receiving community referrals for care.
Women Entering Care was a randomized controlled trial of treatment for major depression in low-income women who received county health and welfare services in the Washington, DC, area suburban counties of Prince Georges and Montgomery, Md, and Arlington and Alexandria, Va. The study was reviewed and approved by the institutional review boards of Georgetown University, the University of California at Los Angeles, and the state of Maryland. All participants gave written informed consent for screening and separate consents for random assignment to care and for medical record abstraction.
We screened 16 286 women: 11 151 in Prince Georges County and 3034 in Montgomery County, Md, and 2101 in Arlington and Alexandria, Va. Women were screened in Women, Infants, and Children food subsidy programs that target low-income pregnant and postpartum women and their children (≤5 years of age). Women were also screened in county-run Title X family planning clinics that are funded by national grants for comprehensive family planning services for young and low-income women. We screened 10 043 women attending Women, Infants, and Children program services, 5017 attending family planning services, 1144 bringing children to pediatric services for low-income families, and 82 living in subsidized housing projects or attending programs for county welfare recipients.
Women were screened for major depressive disorder (MDD) while they were at the service setting. Screenings were conducted from March 1997 through December 2001, with the treatment ending in May 2002. Refusal rates for screening were very low. Figure 1 depicts the screening and enrollment process for the study. To determine whether there were cultural differences in response to interventions, we recruited 3 distinct cultural groups: black women born in the United States, Latinas born in Latin America, and white women born in the United States. Of the 16 286 women screened for MDD, 13 975 were eligible based on self-reported ethnicity and country of origin. Approximately 11% of these women screened positive for MDD based on the Primary Care Evaluation of Mental Disorders,27 and 36% met exclusion criteria, including bereavement, positive for current alcohol or drug problems, being pregnant or planning to become pregnant within the next 6 months, current breastfeeding, or current mental health care. Of those screened, 532 black, 71 white, and 408 Latina women met eligibility requirements for the study, representing 5.6%, 8.0%, and 7.6%, respectively, of the total screened within each ethnic group.
Following the initial clinic screenings, we attempted to contact women who agreed to participate in the telephone diagnostic portion of the study. Participants were contacted by telephone a mean (SD) of 4.1 (4.4) times before completing the diagnostic interview by telephone. Despite repeated attempts, 345 participants (33.9%) were not reachable. Of those participants completing the screening, 427 (42%) completed a structured psychiatric diagnostic telephone interview (Composite International Diagnostic Interview28) and met criteria for the study. Of those participants not eligible, the majority did not meet criteria for major depression.
Clinicians contacted the women a mean (SD) of 7.8 (9.8) times to encourage them to attend an initial clinical interview; consent for random assignment was obtained at the beginning of the interview. Eleven women refused randomization. The clinicians were unaware of a participant's random assignment until the end of the interview, at which time the computer-generated random treatment assignment was revealed by the interviewer telephoning a newly recorded message. A total of 267 Composite International Diagnostic Interview–eligible women (63%) completed the clinical interview, consented to treatment, and were randomized into the intervention trial. Women were randomized as follows: antidepressant medications administered by a primary care nurse practitioner in consultation with a psychiatrist (n = 88), CBT conducted by a psychologist (n = 90), or referral to community mental health services (n = 89). Of those randomized, 117 were black women, 134 were Latina women, and 16 were white women. Among those women randomized, rates of obtaining care varied by randomized assignment. Response to follow-up interviews was generally high, with 80% completing 3 or more of 6 follow-up interviews.
Education Meetings. Participants assigned to receive either CBT or medications were given both time and opportunity for discussion of depression and treatment during education meetings with the clinician overseeing their care before beginning treatment. Up to 4 education meetings could be scheduled to help participants decide about initiating treatment.
Medication. Women assigned to the medication intervention were treated by primary care nurse practitioners supervised by a board-certified psychiatrist (J.Y.C.). The duration of the medication intervention was 6 months, in line with Agency for Healthcare Research and Quality guidelines for the acute and maintenance phases of depression treatment.29 Women were initially treated with paroxetine, which was prescribed according to a written dosing protocol. Adjustments in dosage were based on changes in Hamilton Depression Rating Scale (HDRS)30 scores and adequate time for medication effect. The range of paroxetine dose was 10 to 50 mg daily with a mean dose of 30 mg. Clinicians also assessed participants at face-to-face meetings by using the Clinical Global Impression Scale.31 If a patient did not tolerate paroxetine because of adverse effects or, if by the ninth week, the patient did not show a significant clinical response despite dose adjustments, buproprion, an antidepressant with a different presumed mechanism of action as well as a different adverse effect profile, was administered. Participants treated with medications were observed in person every 2 weeks until a stable dose was achieved, and then every 4 weeks thereafter. The nurses scheduled weekly telephone calls to assess adverse effects, adherence, and treatment effects.
Cognitive Behavioral Therapy. Women assigned to the psychotherapy intervention were treated by experienced psychotherapists supervised by a licensed clinical psychologist with CBT expertise. The psychotherapy intervention consisted of 8 weekly sessions, either in group or individually, depending on feasibility of women attending group. Sessions were conducted at the county clinics, Women Entering Care offices and, if necessary because of child-care or elder-care constraints, in a participant's home. Participants were each given a CBT manual that they kept after treatment was concluded. The manual-guided treatment was adapted from 12-session patient and therapist manuals developed for low-income English- and Spanish-speaking medical patients.32,33 The manual was also shortened to 8 sessions by including more topics per session and modified to be more sensitive to the issues of young women and those with histories of interpersonal trauma. Therapists received training in understanding PTSD and trauma. The therapy protocol involved homework and daily monitoring, with a focus on cognitive management of mood, engaging in pleasant activities, and improving relationships with others. Improvement was assessed by using the HDRS and Beck Depression Inventory.34 If after 8 weeks of treatment a participant's scores were still elevated, an additional 8-week treatment was offered.
Referral to Community Care. Women assigned to community referral as usual were educated about depression and mental health treatments available in the community. The clinician offered to make an appointment for the woman at the end of the clinical interview to facilitate the referral and to speak with the mental health care clinician. Approximately one quarter of the women declined referral. Referred participants were contacted to encourage them to attend the intake appointment for care.
Cultural Adaptation of Care. Bilingual providers treated all Spanish-speaking women. All written materials, including psychotherapy manuals, were available in Spanish. Of the 6 psychotherapists, 1 was black and 3 were Spanish speaking; none of the 4 nurse practitioners were black, and 2 were Spanish speaking. All psychotherapists and nurse practitioners had extensive experience with and commitment to treating low-income and minority patients.
All measures were read to participants based on the high proportion of women who had not finished high school. Screening interviews assessed age, marital status, employment status, ethnicity, country of birth, and level of education. The mood disorders section of the Primary Care Evaluation of Mental Disorders27 was used to identify women at high risk for MDD. Alcohol problems were ascertained using the 5-item TWEAK (Tolerance, Worry about drinking, Eye-opener drinks, Amnesia, Cut down on drinking) designed for obstetric-gynecology clinic patients.35 Substance abuse problems were assessed by using items from the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (SCID).36
To determine whether women met criteria for MDD, the Composite International Diagnostic Interview28 was administered by telephone, assessing 12-month major depressive episode, alcohol abuse or dependence, drug abuse or dependence, and lifetime mania and psychosis. To be eligible for the study, participants needed to have current major depression and a negative score for mania, psychosis, or past month alcohol or drug abuse or dependence.
During the initial in-person interview with clinicians, women completed a measure of trauma history (Stressful Life Event Screening Questionnaire).37 Up to 3 events were evaluated for current PTSD by using the PTSD module of the SCID.36 Women were reimbursed $15 for completing this interview.
During baseline and follow-up telephone interviews, participants completed a structured version of the HDRS30 each month for 6 months. Functional outcomes, including instrumental role functioning (employee or homemaker role assessed by the Social Adjustment Scale38 interview) and social functioning (measured by the Short Form 36-Item Health Survey)39-41 were completed at baseline and months 3 and 6. Telephone interviewers were blinded to random assignment of the participants, and women were reimbursed $10 for completing each interview.
Clinical outcomes were determined through a mixed-effects repeated-measures analysis comparing mean depression symptom and functioning scores across assigned treatment groups over successive time periods. For depressive symptom outcomes that were measured monthly, we fit models using outcomes from month 1 through 6 while controlling for the baseline values. For instrumental role and social functioning outcomes, we fit models using the baseline, month 3, and month 6 scores. In every model, we allowed for the within-participant correlations over time by using a random intercept or random intercept and slope covariance structure. We examined the effect of treatment over time, as well as the interaction of treatment and ethnicity.
We also examined the interaction of treatment and PTSD on outcomes. In this study, the assigned clinician completed the PTSD measure during an initial clinical interview. All other measures were conducted by telephone by trained assessors. Despite comprehensive training on the standardized instrument (SCID), we found that nurse practitioners were significantly more likely to diagnose PTSD (61% of women interviewed) compared with psychologists (34%, P<.001), suggesting that nurses used less stringent criteria in judging presence of symptoms. Because of the importance of PTSD in this population, we performed analyses of medication vs community referral among participants diagnosed with PTSD by nurses and separate analyses for psychotherapy participants vs community referral among participants diagnosed by psychologists. There was no interaction of PTSD and treatment for either group, and PTSD was not included in other analyses.
To examine the robustness of our findings, we performed intent-to-treat unadjusted analysis of variance and permutation comparisons of 6-month outcomes. Because these 2 analytic approaches produce similar findings, we report only analysis of variance results. In addition, we replicated the major longitudinal analyses by using multiple imputed data sets. With the exception of income (n = 10), no baseline data were missing. The extent of missing data at follow-up was similar across the 3 randomized groups. In total, 11 women (4%) missed all but the baseline interview, and 64 (24%) missed at least the last 2 interviews. Of all possible interviews, 29% were missing. To impute item-level missing data, we used an extended hot-deck multiple imputation technique that modifies the predictive mean-matching method.42 We used an approximate Bayesian bootstrap method to impute unit-level missing data.43 Imputations were produced separately for each intervention and the community referral groups. SAS statistical software version 8.2 was used for all analyses (SAS Institute, Cary, NC), and P<.05 was considered significant.
The participants in this study were primarily working poor Latina and black women. The mean (SD) age of participants was 29.3 (7.9) years (Table 1). Less than half were married or living with a partner, and 34.1% had never married. More than one third of the women (37.1%) had not graduated from high school or received a general equivalency diploma, and only 6.7% had completed college. The average woman in this study had 2 or more children, and 64.8% of women were medically uninsured.
The sample was predominantly poor. More than half (60%) of the women lived at or below the federal guidelines for poverty (during the years from 1997 to 2001). Furthermore, another 34.2% were near poor (between 100%-200% of poverty guidelines). In addition, the women in this study experienced extremely high rates of trauma exposure. More than one third had been raped and/or experienced child abuse, and 49.2% had experienced domestic violence. High rates of PTSD were also found.
Given the multiple demands on these working-poor women, outreach was an essential part of this study. Following the clinical interview, nurse practitioners spoke with women a mean (SD) of 8.8 (11.2) times to enable a first medication visit. The psychologists spoke with patients a mean (SD) of 10.2 (12.2) times before they attended a psychotherapy visit. Women who were reluctant to begin medications or psychotherapy could attend education sessions to teach them about depression treatment before agreeing to enter care. Eighty-five women (96%) attended a mean (SD) of 1.89 (0.91) educational sessions before beginning medications, and 60 women (67%) attended 2.37 (1.76) educational sessions before beginning psychotherapy. Of the women who were randomly assigned to medication treatment, 18 (20%) were switched to buproprion. Of the women assigned to psychotherapy, 15 (17%) received an additional 8 sessions of CBT. Transportation to care visits and child care funds were provided to enable women to participate in the 2 interventions. Child care was provided by either reimbursing women $10 per hour of treatment so that they could pay someone they knew for child care or when they were unable to identify a potential child care provider, child care was provided at the treatment site by study research assistants. Transportation was provided through taxi vouchers, a prepaid hired van, or reimbursement of subway or bus costs, depending on the availability of transportation at a particular site.
Participation in care was low for women in the community referral condition. After referral to a specific community provider, 74 (83%) of the women offered community referral failed to attend even 1 session. Only 8 women (9%) attended 4 or more sessions of community care. Of those randomly assigned to receive medications, 67 (75%) received 9 or more weeks of a guideline-concordant course of medications, and 40 (45%) received a guideline-concordant course for 24 or more weeks. Women were less likely to complete an adequate course of CBT. Of those randomly assigned to receive psychotherapy, 48 (53%) received 4 or more CBT sessions and 32 (36%) received 6 or more sessions. Likelihood of receiving an adequate course of treatment did not differ by ethnicity.
Results of repeated-measures analyses assessing change across time revealed a significant decrease in depressive symptoms for women in the medication (P<.001) and psychotherapy (P = .006) interventions compared with the community referral group when measured by the HDRS (Figure 2). There were no significant interactions in depression outcomes between the interventions and ethnicity. The women randomly assigned to receive medication and psychotherapy reported improved functioning compared with those referred to community care. Results on instrumental role functioning revealed a significant impact of the medication intervention (P = .006), but not the psychotherapy intervention (P = .38) when compared with the group referred to community care. Both medication (P = .001) and psychotherapy (P = .02) interventions were effective in improving social functioning vs community referral. The women randomly assigned to receive medications were twice as likely (odds ratio, 2.04; 95% confidence interval, 0.98-4.27; P = .057) to achieve an HDRS score of 7 or less by month 6 as were those referred to community care. By month 6, 44.4% of medication, 32.2% of psychotherapy, and 28.1% of community referral patients had achieved an HDRS score of 7 or less.
Comparisons were made between adjusted mean scores of those in the intervention groups and those in the community referral group at months 1, 3, and 6 (Table 2). Women in the medication intervention had lower depressive symptoms at months 3 and 6 and higher instrumental role and social functioning by month 6 than did those referred to community care. Women assigned to receive psychotherapy had lower depressive symptoms by month 6 and improved social functioning at month 6 compared with the referred participants. Women in the psychotherapy group did not differ from the referred controls on the instrumental role functioning measure. Women receiving medication reported lower depressive symptoms and better instrumental role functioning than did those receiving psychotherapy at month 6.
To examine the robustness of our longitudinal findings, we reexamined the major analyses using intent-to-treat analysis of variance test at 6 months, with no covariates. We replicated our finding that the medication intervention was superior to community referral in decreasing depressive symptoms (P = .04), improving instrumental role functioning (P = .01), and social functioning (P = .01). The psychotherapy intervention was not superior to community referral in decreasing depressive symptoms (P = .32) or improving role functioning (P = .58), but did result in improved social functioning (P = .06).
As an additional test of robustness, we used 5 imputed data sets to ensure that our results were not due to missing data. The results for the medication intervention compared with community referral were replicated for decreasing depressive symptoms (P = .04) and improving instrumental role (P = .009) and social (P = .03) functioning. With the exception of improving social functioning (P = .03), there were no significant differences between the psychotherapy participants and the community referral group for the imputed data.
To examine the likely outcomes of current practice guideline treatment in this population, we compared those women in the medication group who received at least 9 weeks of guideline-concordant treatment (n = 67) and those in the psychotherapy group who received at least 6 CBT visits (n = 32) with those in the community referral group who did not receive any mental health treatment (n = 74). Guideline medications (P<.001) and psychotherapy (P = .003) were significantly more effective than no treatment in decreasing depressive symptoms. There were no interactions between treatment and ethnicity. Medication (P = .003) was superior in improving instrumental role functioning compared with no treatment; psychotherapy was not (P = .07). The medication (P<.001) and the psychotherapy (P = .003) interventions resulted in improved social functioning compared with no treatment.
Comparisons were made between mean scores at months 1, 3, and 6 for women receiving guideline treatment compared with women receiving community referral with no treatment (Table 3). To determine the impact of guideline care above care received in the community, we also compared women receiving guideline medication or psychotherapy treatment with community referral individuals who entered community care (n = 15). Guideline medications were more effective than community care at month 6 for reducing depressive symptoms (P<.001), increasing instrumental role functioning (P = .01) and social functioning (P<.001). Guideline psychotherapy was more effective than community care at 6 months for reducing depressive symptoms (P = .01) and social functioning (P = .006), but did not improve instrumental role functioning (P = .78).
These results demonstrate the effectiveness of the study interventions for depression when provided to low-income and minority women. The interventions included intensive outreach, child care and transportation to care when needed, and encouragement to comply with evidence-based medication or psychotherapy treatment. As a result of this care, women not only achieved lower levels of depressive symptoms, but they also achieved higher levels of instrumental role and social functioning.
The results for community referral show that few impoverished women engage in community care that is available to them. Although we could obtain appointments for care, very few women actually attended such care. Without the outreach, child care and transportation, and flexible scheduling of care offered, few impoverished women are likely to receive appropriate treatment for depression.
Engagement of women in care was demanding throughout this study. We were unable to obtain telephone diagnostic interviews for nearly one third of the women who screened positive for depression, despite persistent attempts. Of those who were interviewed, 26% who had screened positive did not meet criteria for major depression. Many reported that their mood was low at screening because of life circumstances but their mood had subsequently improved. Once diagnosed, our clinicians spent considerable time gaining the trust of the women, often through telephone contact, before they were comfortable receiving care.
We found no ethnic differences in response to care. Although our sample of white women was extremely small, these results argue against concerns that evidence-based treatment may not be effective for black and Latina women. Evidence-based interventions appear effective for poor and minority women if they are given support to overcome barriers to care. The interventions were moderately tailored for each ethnic population, providing care in Spanish when appropriate, and using professionals sensitive to low-income and minority populations. With these sensitivities, evidence-based treatment for depression appears effective for diverse populations.
Results of this study suggest that medication interventions may be more effective for low-income and minority women than are psychotherapy interventions. More women engaged in a sufficient duration of guideline treatment with medications compared with psychotherapy, and outcomes of care were more extensive and robust for medications. The nurse practitioners may be more accustomed to providing patient outreach than are psychotherapists. This finding could also reflect the lower time demands on patients of taking medications vs attending psychotherapy. Also, the results of psychotherapy may be slower to unfold.
Several limitations of this study should be considered. First, all measures were self-report, although the study measures have been used extensively in previous depression studies. Second, our measure of PTSD appears to be influenced by type of clinician completing the diagnosis. Nonetheless, presence of PTSD did not appear to lessen the impact of depression care. Third, nearly half of the women who screened positive for depression did not follow-up with diagnostic interviews, and others claimed to no longer be depressed when interviewed later. Thus, the extent to which this sample represents low-income young women in general is not known. Fourth, all women in the study received monthly telephone interviews to assess study outcomes. According to their self-reports, the women experienced these calls as helpful. The impact of multiple contacts for obtaining study measures could attenuate the results of the interventions compared with community referral. Finally, the impact of evidence-based treatment without the enhancements necessary to bring women to treatment cannot be determined in this study.
We conclude that our interventions, including medications and psychotherapy consistent with depression-treatment guidelines, are superior to community referral for low socioeconomic status young women. The health policy implications of this study are important. Engaging impoverished minority women in care is demanding, but outcomes are clearly beneficial. Engaging women through trusted providers could prove easier. Our results demonstrate that treating depression in this population has clear advantages, both in terms of reducing personal suffering and improving the ability of these young women to function.
Corresponding Author and Reprints: Jeanne Miranda, PhD, Health Services Research Center, UCLA Neuropsychiatric Institute, 10920 Wilshire Blvd, Suite 300, Los Angeles, CA 90024 (e-mail: firstname.lastname@example.org).
Author Contributions:Study concept and design: Miranda, Chung, Green, Krupnick, Revicki.
Acquisition of data: Miranda, Chung, Krupnick.
Analysis and interpretation of data: Miranda, Chung, Green, Siddique, Revicki, Belin.
Drafting of the manuscript: Miranda, Chung, Green, Siddique, Belin.
Critical revision of the manuscript for important intellectual content: Miranda, Chung, Green, Krupnick, Revicki.
Statistical expertise: Siddique, Belin.
Obtained funding: Miranda, Chung, Green, Krupnick.
Administrative, technical, or material support: Miranda, Chung, Green.
Study supervision: Miranda, Chung, Green, Krupnick.
Funding/Support: This work was funded by grant R01 MH56 864 from the National Institute of Mental Health. Paroxetine was provided by GlaxoSmithKline.
Acknowledgment: We thank Pat Heiber, PhD, for her work as project coordinator; Amy Cha, BA, Sharon Gearhart, BA, Lisa Hooper, PhD, and Cliff Willis for grant and data management; and Anne Riley, PhD, Mary Jo Coiro, PhD, Marina Broitman, PhD, and Lori Frank, PhD, for critical input and collaboration. The project would not have been possible without the dedication and skill of our clinicians (Jan Gagen, NP, MSN, Lois Wessel, RN, NP, Jacqueline Cadena, CRNP, Laura Kohn, PhD, Ana Daroowalla, PhD, Elisha Friedman, PhD, Karin Focke, MA, Teresa Tudder, MA, Elissa Emerson, CRNP) and key staff/interviewers (Adrianna Ortiz, BA, and Sarah Conron, BA). We appreciate the support and collaboration we received to conduct the research from the Department of Maternal and Child Health, Prince Georges County, Md; Montgomery County Health and Health and Human Services Departments, Norristown, Pa; Arlington County Department of Human Services, Arlington, Va; and the Alexandria Department of Health, Alexandria, Va. Special thanks to Robert Cullen, MHA, Art Thatcher, MPH, Cheryl Bruce, BSN, Marcia Plater, MA, Mark Langlais, Julie Huff, RN, MSN, and Mary Jelacic, MSW, LCSW-C. In addition, we acknowledge the numerous clinic and program staff, nurses, physicians, and interviewers who contributed to the conduct of the study.