Evidence reviews for the US Preventive Services Task Force (USPSTF) use an analytic framework to visually display the key questions that the review will address to allow the USPSTF to evaluate the effectiveness and safety of a preventive service. The questions are depicted by linkages that relate interventions and outcomes. Refer to the USPSTF Procedure Manual for further details.11 KQ indicates key question.
KQ indicates key question; RCT, randomized clinical trial; USPSTF, US Preventive Services Task Force.
The size of the boxes indicates the relative contribution of each study to the pooled estimate; error bars, 95% CIs for each study’s estimate of effect; centers of diamonds, pooled estimates; width of diamonds, 95% CIs for pooled estimates. A, For studies with multiple groups, the pooled estimates average the treatment effect from active groups and are reported as “combined.” Finello et al reported results from a combination of home health and home visits, home health alone, and home visits alone. Because that trial reported cases only for the home health group, the pooled analysis includes the home health group only. Lowell et al did not report number of events per group; the total N analyzed for both groups is 117. NA indicates not available.
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Viswanathan M, Fraser JG, Pan H, et al. Primary Care Interventions to Prevent Child MaltreatmentUpdated Evidence Report and Systematic Review for the US Preventive Services Task Force. JAMA. 2018;320(20):2129–2140. doi:10.1001/jama.2018.17647
Child maltreatment, also referred to as child abuse and neglect, can result in lifelong negative consequences.
To update the evidence on interventions provided in or referable from primary care to prevent child maltreatment for the US Preventive Services Task Force.
PubMed, Cochrane Library, EMBASE, and trial registries through December 18, 2017; references; experts; literature surveillance through July 17, 2018.
English-language fair- and good-quality randomized clinical trials that (1) included children with no known exposure to maltreatment and no signs or symptoms of current or past maltreatment, (2) evaluated interventions feasible in a primary care setting or that could result from a referral from primary care, and (3) reported abuse or neglect outcomes or proxies for abuse or neglect (eg, injury with a specificity for abuse, visits to the emergency department, hospitalization).
Data Extraction and Synthesis
Two reviewers independently assessed titles/abstracts, full-text articles, and study quality; a third resolved conflicts when needed. When at least 3 similar trials were available, random-effects meta-analyses were conducted.
Main Outcomes and Measures
Direct measures (including reports to child protective services and removal of the child from the home) or proxy measures of abuse or neglect; behavioral, emotional, mental, or physical well-being; and harms.
Twenty-two trials (33 publications) were included (N = 11 132). No significant association was found between interventions and reports to child protective services within 1 year of intervention completion (10.6% vs 11.9%; pooled odds ratio [OR], 0.94 [95% CI, 0.72-1.23]; 10 trials [n = 2444]) or removal of the child from the home within 1 to 3 years of follow-up (3.5% vs 3.7%; pooled OR, 1.09 [95% CI, 0.16-7.28]; 4 trials [n = 609]). No statistically significant associations were observed between interventions and outcomes for emergency department visits in the short term (<2 years), hospitalizations, child development, school performance, and prevention of death. Nonsignificant results from single trials led to a conclusion of insufficient evidence for injuries, failure to thrive, failure to immunize, school attendance, and other measures of abuse or neglect. Inconsistent results led to a conclusion of insufficient evidence for long-term (≥2 years) outcomes for reports to child protective services (ORs range from 0.48 to 1.13; 3 trials [n = 1690]), emergency department visits (1 of 2 trials reported significant differences) and internalizing and externalizing behavior symptoms (3 of 6 trials reported reductions in behavior difficulties). No eligible trials on harms of interventions were identified.
Conclusions and Relevance
Interventions provided in or referable from primary care did not consistently prevent child maltreatment. No evidence on harms is available.
Child abuse and neglect, also referred to as child maltreatment—words or actions that cause or fail to protect children from harm, potential harm, or the threat of harm1—is associated with negative physical and emotional health outcomes that persist and can lead to serious disorders throughout the life course.2-6 Injuries may include brain injuries, blindness, and fractures7 and can lead to disability or death.8 The goal of interventions to prevent child maltreatment is to reduce or eliminate exposure to abuse and neglect, improve well-being, and reduce mortality.
This review was conducted to inform the US Preventive Services Task Force (USPSTF) in its update of the 2013 recommendation on interventions relevant to US primary care to prevent child maltreatment.9 In 2013, the USPSTF concluded that the evidence10 was insufficient (I statement) to assess the balance of benefits and harms.
The analytic framework and key questions (KQs) that guided the review are shown in Figure 1. Detailed methods, evidence tables, sensitivity analyses, and contextual information are available in the full evidence report at http://www.uspreventiveservicestaskforce.org/Page/Document/UpdateSummaryFinal/child-maltreatment-primary-care-interventions1.
PubMed, the Cochrane Library, and EMBASE were searched for English-language articles published from November 1, 2011, through December 18, 2017. ClinicalTrials.gov, Cochrane Clinical Trials Registry, and the World Health Organization International Clinical Trials Registry Platform were also searched. To supplement systematic electronic searches (eMethods 1 in the Supplement), reference lists of pertinent articles and studies suggested by reviewers were reviewed. Since December 18, 2017, ongoing surveillance was conducted through article alerts and targeted searches of journals to identify major studies published in the interim that may affect the conclusions or understanding of the evidence and the related USPSTF recommendation. The last surveillance was conducted on July 17, 2018, and identified no eligible studies.
Two investigators independently reviewed titles, abstracts, and full-text articles using prespecified inclusion criteria for each KQ (eTable 1 in the Supplement); disagreements about inclusion were resolved by discussion.
To be eligible, study samples had to have a majority of children (>50%) without known exposure to maltreatment and no signs or symptoms of current or past maltreatment. Studies of symptomatic children undergoing diagnostic evaluation for conditions related to abuse or neglect or asymptomatic children with known exposure to child maltreatment were excluded. All interventions that were feasible in a primary care setting or for which a primary care clinician could give a referral were eligible, with the exception of community-wide programs. Eligible comparators included usual care, delayed interventions, and active interventions that allow for assessment of the independent contribution of the primary care–feasible or primary care–referable preventive intervention.
Studies needed to report at least 1 direct or proxy measure of abuse or neglect to be eligible. Direct measures included those reflecting physical, sexual, or emotional abuse perpetrated by a parent or caregiver; physical (eg, failure to thrive), emotional, dental or medical (eg, lack of immunizations or well-child visits), or educational neglect; reports to Child Protective Services (CPS); and removal of the child from the home. Proxy measures included injuries (eg, fractures, bruises, burns, nonaccidental injuries [injuries with a high specificity for abuse,12 regardless of whether the injury was intentional]), visits to the emergency department, and hospitalizations. Parent-reported measures of abuse or neglect were summarized in response to a contextual question (eResults 2 in the Supplement). For studies that reported direct or proxy measures of abuse or neglect (other than self-report), behavioral, emotional, mental, or physical well-being outcomes were also assessed.
Randomized clinical trials (RCTs) and systematic reviews were eligible for all KQs; observational study designs were also eligible for harms of screening (KQ2). Only studies that had been published in English and conducted in the 49 countries categorized as very highly developed by the 2015 Human Development Index were included.13
For each included study, 1 investigator extracted information about design, population, intervention, and outcomes, and a second investigator reviewed the information for completeness and accuracy. Two independent investigators assessed the quality of each study as good, fair, or poor, using predefined criteria developed by the USPSTF (eMethods 2 in the Supplement)14 and others15 for assessing the risk of bias of trials. Individual study quality ratings are reported in eTables 2 through 6 in the Supplement.
Findings were qualitatively synthesized for each KQ in tabular and narrative formats. Studies were included in the main analysis if they met all study selection criteria and were fair or good quality; this included studies from the prior review that informed the USPSTF 2013 recommendation that continued to meet the study selection criteria for this update.16 Qualitative and quantitative sensitivity analyses were conducted by adding poor-quality studies. When at least 3 independent and similar RCTs were available, random-effects models using the inverse-variance–weighted method of DerSimonian and Laird was used to estimate pooled effects for pooled odds ratios (ORs). Statistical heterogeneity was assessed using the I2 statistic.15 All quantitative analyses were conducted using Comprehensive Meta Analysis (Version 3.3) software.17
All testing was 2-sided and assumed statistical significance if the 95% confidence intervals of pooled estimates did not cross the null value. The strength of evidence for each outcome was assessed as high, moderate, low, or insufficient using methods developed for the USPSTF (and the Evidence-based Practice Center program), based on the quality of studies, consistency of results between studies, precision of findings, and risk of reporting bias for each intervention comparison and major outcome of interest.14,18
Twenty-two RCTs (N = 11 132) of good or fair quality, from 33 publications, were included (Figure 2). Table 1 summarizes study characteristics, and eTables 7 through 11 in the Supplement provide details. The evidence base spans more than 3 decades; the earliest included study recruited participants in 197619 and the most recent through 2010.20 Twenty-one of 22 trials (95%) had a home visiting component; some trials present results from attempting a similar model of home visiting interventions in different settings (eg, the Healthy Families intervention in Alaska21,22 and New York23,24; replications20,25 of the Nurse Family Partnership26-32). Fifteen trials (68%) recruited mothers younger than 20 years, on average. Nineteen trials (86%) included a usual-care comparator. Sixteen trials (73%) were conducted in the United States. In other respects, however, the evidence base is heterogenous in study populations (time of enrollment, age of infant, experience of maltreatment) and interventions (number, intensity, and duration of components; use of clinical personnel).
Regarding enrolled populations, 13 trials enrolled mothers before or immediately after birth; the mean age of children in the 9 other trials ranged from younger than 6 months to 8 years. One study enrolled fathers. Six trials (27%) reported on whether participants had experienced maltreatment at baseline; other trials either did not specify or enrolled women during pregnancy.
Twelve trials (55%) identified participants or children to be at risk. Risk factors varied across studies and included infant health status or child emotional or behavioral concerns, maternal depression or other mental health problems, presence or history of intimate partner violence, parental substance abuse history, and demographic and socioeconomic characteristics of the mother or family (eg, adolescent parent, poverty, marital status).
Regarding interventions, only 1 trial33 did not feature home visits. It focused on behavioral therapy for male patients entering outpatient alcohol treatment who had legal guardianship of at least 1 child aged 8 to 12 years. For the trials with home visit components, the content, use of other components, personnel, intensity, and duration varied. Although the specific intervention goals of the home visiting program varied by trial, trials described the following activities: assessing family needs; developing a relationship between the home visitor and the client; providing information, referral, and parenting education; promoting child health, safety, and development; providing clinical care; enhancing family functioning and supporting positive child-parent interactions; building supportive social networks; and creating family plans to support parental life course development and self-sufficiency. Five trials reported home visit services without a clinical component or personnel.21-24,34-37 Sixteen trials provided home visits in the context of clinical support, which included nurses or mental health professionals supervising home visitors, serving as home visitors, or providing comprehensive pediatric service as an intervention component.19,20,25-28,38-50
Of the 21 home visit trials, 8 had nurses as home visitors,20,25-28,39,41,42,45,46,49 1 had mental health clinicians as home visitors,47 6 had paraprofessional home visitors,19,21-24,36,38,40 3 included home visitors with early childhood expertise,43,45-47 3 included social workers,25,41,42,45,46 and 1 had peer home visitors.48 The remaining trials did not specify the training of the home visitors.34,35,37,44,50,51
The duration of the intervention ranged from 3 months19,33 to 3 years.41,42,45,46 The planned number of home visits, when reported, ranged from 5 sessions49 to 41 sessions.34,35
Key Question 1. Do primary care–feasible or primary care–referable interventions to prevent child maltreatment reduce exposure to abuse or neglect; improve behavioral, emotional, physical, or mental well-being; or reduce mortality among children and adolescents without obvious signs or symptoms of abuse or neglect?
Thirteen trials (14 publications)19,21,23,25,28,33,34,36,37,39,41,42,44,47 reported on reports to CPS, and 1 trial20 reported on safeguarding actions (eTable 12 and eTable 13 in the Supplement). All eligible trials reported their first results during the intervention (1 year from baseline), at the end of the intervention, or within 1 year of completion of the intervention. Four trials reported outcomes at 1 or more time points after the first analysis of results. The timing of these reports varied: within 6 months of the initial results,44 1 year23,47 to 2 years47 after the initial results, or over the longer term (6 years after the initial results,23 when the child was 7 years of age24; 13 years after the initial results, when the child was 15 years of age30-32). The pooled OR from 10 trials, all having reported results within 1 year of completion, suggested association between the intervention and reports to CPS (OR, 0.94 [95% CI, 0.72-1.23]; I2 = 6.3%) (Figure 3). Trials reporting additional results within 6 months44 or 1 year23,47 of the original results also reported no statistically significant differences between the groups.
Trials measuring outcomes for later time points provided mixed results.24,30-32,47 No patterns emerged regarding features of the intervention or characteristics of the study sample across the trials showing benefit.
Five trials34,35,38,39,48,49 reported on outcomes related to removal of the child from the home. Four of 5 trials contributed to a pooled analysis of removal of the child from the home across time points ranging from 12 months to 3 years after baseline (eTable 14 in the Supplement).34,35,38,39,49 The results show no statistically significant associations between study groups and the outcome (3.5% [11/313] vs 3.7% [11/296]; pooled OR, 1.09 [95% CI, 0.16-7.28]; I2 = 61.8%; 4 trials [n = 609]) (Figure 3).
Two RCTs38,40 reported on study-specific measures of abuse (eTable 15 and eTable 16 in the Supplement). These measures included physical abuse,38 neglect,38 and results from the Framingham Safety Survey about household hazards.40 One trial reported no statistically significant differences, finding 13 of 141 cases (9.2%) of physical abuse in the intervention group vs 8 of 122 (6.6%) in the comparator group (risk ratio [RR], 1.4 [95% CI, 0.58-3.62]).38 The same study38 reported 15 of 141 cases (10.6%) of neglect in the intervention group vs 5 of 122 (4.1%) in the comparator group (RR, 2.79 [95% CI, 0.98-7.91]).38 The other trial reported a statistically significant difference (P = .03), but the clinical importance of differences in the Framingham Safety Survey score is unclear.40 That trial reported mean values on the Framingham Safety Survey score of 1.72 (intervention) vs 1.68 (comparator); higher scores represent greater safety.
One trial found no statistically significant differences in the rates of nonaccidental injuries (0/64 for the intervention vs 1/71 for the comparator; calculated RR, 0.37 [95% CI, 0.02-8.91]) (eTable 17 in the Supplement).49
Eleven trials reported on emergency department visits (eTable 18 and eTable 19 in the Supplement).19-22,26-32,34,35,41-46,50,51 The timing of outcome measurement varied substantially across trials, ranging from 6 months to more than 4 years. In addition, outcome measures varied and included (1) mean number of all-cause emergency department visits; (2) mean number of emergency department visits for accidents, injuries, and ingestions; (3) number of children seen in the emergency department; (4) number of children seen for accidents or injuries; (5) number of children seen for injuries or ingestions, and (6) total emergency department visits. These variations precluded pooling. Several trials presented outcomes at multiple periods. The results were generally inconsistent in direction of effect.
Twelve trials reported on hospitalization outcomes (eTable 20 and eTable 21 in the Supplement).19-22,26,29,34,39,41,42,44,46,49,51 Because of substantial heterogeneity in outcome definitions and periods of interest, results could not be pooled. Outcomes varied in degree of specificity to child abuse and neglect and included (1) number of children with hospital admission as a result of an injury that was “referred for independent investigation by the Family and Children’s Services staff and concluded to have arisen as a result of a nonaccidental injury to the neonate”49; (2) number of children hospitalized because of child abuse and neglect41; (3) proportion of children hospitalized because of injury or ingestion20; (4) number of children hospitalized for ambulatory care–sensitive conditions; (5) number of children rehospitalized (at 14 days and 18 months, the original cause was not specified); (6) number of children with all-cause hospitalization; (7) mean number of all-cause hospitalizations; (8) total counts of hospital visits; (9) mean number of hospital days; and (10) types of injuries reported among those hospitalized. Results were not statistically significant for 7 outcomes. One of 5 trials that reported on the number of children with all-cause hospitalization demonstrated a significant reduction, but only for 1 of 4 outcome measures.44 One of 2 trials found a lower mean number of hospital days,29 and 1 trial found lower overall rates of hospital admission for unintentional injury at a 9-year follow-up.42 These results suggest an overall lack of benefit for the active intervention group(s).
One trial reported on failure to thrive. It found no statistically significant differences between study groups for this outcome (0% [0/39] vs 2.5% [1/40]; RR, 0.34 [95% CI, 0.01-8.14]) (eTable 22 in the Supplement).39
One trial reported on failure to immunize. It found no statistically significant differences between study groups in the rate of no vaccinations at 6 months (calculated RR, 0.49 [95% CI, 0.16-1.52]) (eTable 23 in the Supplement).49
Six trials reported on internalizing (depression, anxiety) and externalizing (disruptive, aggressive, or delinquent) behavioral outcomes in children (eTable 24 and eTable 25 in the Supplement).21-24,26,27,41,42,45-47 The evidence included substantial heterogeneity in the timing and type of outcome measurement, and findings were inconsistent. Three of 6 trials found a reduction in behavioral difficulties in children in primary care interventions to prevent child maltreatment.21,22,41,42,47
Five trials evaluated discrete social, emotional, or other developmental outcomes separately from overall measures of externalizing or internalizing problems (eTable 26 and eTable 27 in the Supplement).24,27,34,35,45-47 The heterogeneity of outcomes precluded meta-analysis, but all trials reported results that were not statistically significant.
Four trials21,22,26-32,34 reported on child development as measured by the Bayley Scales of Child Development (eTable 28 and eTable 29 in the Supplement). The results generally indicated no statistically significant differences between intervention and control groups, with the exception of 1 trial.22 This trial found a statistically significant difference in the Bayley Mental Development Index among children in the experimental group (mean score, 88 vs 84.8; difference, 3.2 [95% CI, 1.2-5.2]; <85 is the threshold for mild delay).22 The mean difference between the 2 groups was not statistically significant for the psychomotor index.
Three trials reported no consistent differences in other developmental outcome measures (infant development tests, parent concerns about infant development) (eTable 30 and eTable 31 in the Supplement).20,28,46
One trial found no statistically significant differences in school performance at 9 years of age.27 One trial24 reported on school attendance; children at age 7 years in the intervention group were less likely to report skipping school than children in the usual-care group (2.35% [9/388] vs 6.47% [26/405]; RR, 0.36 [95% CI, 0.17-0.76]) (eTable 32 and eTable 33 in the Supplement). The same study reported no statistically significant differences using maternal reports of skipping school.
Four trials of fair quality reported on the outcome of child death (eTable 34 in the Supplement); outcome specification and follow-up times varied and precluded quantitative synthesis.26,27,34,39,49 No study reported statistically significant differences in the rates of child death between intervention and usual-care groups. One trial reported mortality at the 6-month follow-up,49 1 at 12 months,34 and 1 at 18 months.39 Another trial reported child deaths at the 9-year follow-up.26,27 One trial included deaths attributed to sudden infant death syndrome.39 One trial included only those deaths for which a child protection concern was known and an open verdict was reached.34 The other 2 trials included all deaths in the period specified for follow-up. Overall rates of death were low (0% to 3.0%), even though eligible studies included at-risk children.
One trial reported on a composite outcome comprising infant death, severe nonaccidental injury, and involuntary foster care placement (eTable 35 in the Supplement).49 The investigators did not find a statistically significant risk before adjusting for covariates (3% [2/65] vs 12.7% [9/71]; RR, 0.24 [95% CI, 0.05-1.08]). When adjusted for baseline covariates, the RR was 0.22 (95% CI, 0.02-0.98).49
Key Question 2. What are the harms of primary care–feasible or primary care–referable interventions to prevent child maltreatment?
No studies met the inclusion criteria.
The findings for this evidence review are summarized in Table 2. The evidence for the effect on short-term outcomes of primary care–feasible and primary care–referable interventions to prevent child maltreatment, reports to CPS, emergency department visits, and hospitalizations showed no statistically significant benefit in terms of child maltreatment outcomes or proxy measures. Few studies reported long-term outcomes; results from these studies are not consistent. Sensitivity analyses that included poor-quality studies did not change the results (eResults 1, eFigure 1 and eFigure 2, eTables 37-55 in the Supplement).
Furthermore, interpretation of some outcomes can be challenging. Lower rates of all-cause emergency department visits or hospitalization may represent changes in patterns of health care utilization as a result of the intervention rather than lower rates of abuse or neglect.
The evidence was also inconclusive for other outcomes, based primarily on the limited number of trials reporting on each outcome and lack of statistically significant results. These include injuries, failure to thrive, failure to immunize, internalizing and externalizing behavior symptoms, school attendance, and other measures of abuse or neglect. The evidence also suggests no statistically significant benefit for removal of the child from the home, child development, school performance, and prevention of death. No eligible studies on harms of interventions were identified. Results for parent-reported measures of exposure to abuse or neglect (eResults 2, eTables 56-71 in the Supplement) also did not suggest consistent benefit.
The evidence consisted entirely of RCTs and almost entirely of interventions that included home visits. Trials generally focused on young mothers and drew from vulnerable populations. Some interventions, such as the Nurse Family Partnership (Memphis, Tennessee; Elmira, New York) and Healthy Families, were tested in multiple settings. Nevertheless, the 21 included home-visit trials differed substantially in other respects, such as the populations of interest, baseline risk of maltreatment, intervention intensity and duration, and outcomes measured. These underlying characteristics may explain variations in the effectiveness of the intervention, but the evidence base for each outcome was not extensive enough to identify any patterns. Additionally, the unaccounted effects of enhanced surveillance in preventive interventions, particularly in the context of home visiting programs, can result in increased identification of maltreatment. This is an important source of bias inherent in child maltreatment prevention research.
This study had several limitations. First, inclusion in the review was restricted to studies focused on preventive interventions for children who had not yet experienced maltreatment and to individual rather than community-wide interventions. Therefore, the conclusions of this systematic review do not apply to the effectiveness of interventions to prevent the recurrence of child maltreatment for children who have experienced maltreatment or to community-wide interventions.
Second, in general, information about the type and severity of parent mental health problems was underreported. The resulting gap in the evidence precludes a fuller understanding of the salient factors affecting the effectiveness of the interventions.
Third, the focus of this review was on direct or proxy measures of abuse or neglect and their sequelae. It does not address the effectiveness of home visiting and other interventions for the other outcomes also measured in many of the included trials (eg, maternal outcomes, family functioning).
Fourth, there are limitations in the evidence that relate primarily to the considerable diversity of the interventions and the uncertainties stemming from such heterogeneity. Although all but 1 of the included trials had a home visiting component, several aspects of this particular activity differed. These aspects included the nature and theoretical basis of the interventions delivered during the home visits, credentials of the home visiting staff, and intensity and duration of the intervention.
Fifth, all trials involved implementing multiple components. Complex, multicomponent interventions need to report the theoretical foundation for the intervention to help interpret the results and reproduce successful interventions. Study authors generally did not provide a theory of change or logic model that identified components essential to the success of the intervention. Without theoretical or contextual information on critical intervention components, the review cannot comment on how successful interventions are different from unsuccessful interventions.52
Sixth, the question of applicability of the findings to other pediatric or caregiver populations (eg, with lower or higher risk profiles) and other settings (eg, with fewer resources) remains uncertain.
Seventh, although some child maltreatment prevention studies reported positive outcomes, the results do not consistently indicate benefit when sorted by outcome. Chance positive findings cannot be ruled out. Some studies reported on outcomes that may be important but are distal or unrelated to child maltreatment outcomes (such as interpregnancy interval).
Interventions provided in or referable from primary care did not consistently prevent child maltreatment. No evidence on harms is available.
Corresponding Author: Meera Viswanathan, PhD, RTI International, 3040 E Cornwallis Rd, Research Triangle Park, NC 27709 (firstname.lastname@example.org).
Author Contributions: Dr Viswanathan had full access to all the data in the study and takes responsibility for the integrity of the data and the accuracy of the data analysis.
Concept and design: Viswanathan, Fraser, Forman-Hoffman, Hart, Zolotor, Jonas.
Acquisition, analysis, or interpretation of data: All authors.
Drafting of the manuscript: Viswanathan, Fraser, Pan, McKeeman, Forman-Hoffman, Zolotor, Lohr, Patel.
Critical revision of the manuscript for important intellectual content: Viswanathan, Fraser, Morgenlander, Forman-Hoffman, Hart, Zolotor, Lohr, Jonas.
Statistical analysis: Viswanathan, Pan, Hart.
Obtained funding: Viswanathan, Jonas.
Administrative, technical, or material support: Viswanathan, Fraser, Pan, McKeeman, Forman-Hoffman, Hart, Zolotor, Patel.
Conflict of Interest Disclosures: Dr Hart reported receiving a National Research Service Award Primary Care Research Fellowship (grant T32-HP14001). No other disclosures were reported.
Funding/Support: This research was funded under contract HHSA-290-2015-0001-I, Task Order 5, from the Agency for Healthcare Research and Quality (AHRQ), US Department of Health and Human Services, under a contract to support the USPSTF.
Role of the Funder/Sponsor: Investigators worked with USPSTF members and AHRQ staff to develop the scope, analytic framework, and key questions for this review. AHRQ had no role in study selection, quality assessment, or synthesis. AHRQ staff provided project oversight, reviewed the report to ensure that the analysis met methodological standards, and distributed the draft for peer review. Otherwise, AHRQ had no role in the conduct of the study; collection, management, analysis, and interpretation of the data; and preparation, review, or approval of the manuscript findings. The opinions expressed in this document are those of the authors and do not reflect the official position of AHRQ or the US Department of Health and Human Services.
Additional Contributions: We acknowledge the following individuals for their contributions to this project: AHRQ staff (Justin Mills, MD, MPH; Iris Mabry-Hernandez, MD, MPH; and Tracy Wolff, MD); current and former members of the US Preventive Services Task Force who contributed to topic deliberations; RTI International–University of North Carolina EPC staff (Lynn Whitener, DrPH; Carol Woodell, BSPH; Rachel Weber, PhD; Linda J. Lux, MPA; Catherine A. Grodensky, MPH; Sharon Barrell, MA; and Loraine Monroe). USPSTF members, peer reviewers, and federal partner reviewers did not receive financial compensation for their contributions.
Additional Information: A draft version of the full evidence report underwent external peer review from 7 content experts (Charles Wilson, MSSW; M. Denise Dowd, MD, MPH; Joanne N. Wood, MD, MSHP; Ken Epstein, PhD, LCSW; Ron Prinz, PhD; Beverly Fortson, PhD; Joanne Klevens, MD, PhD, MPH) and 1 anonymous reviewer. Comments from reviewers were presented to the USPSTF during its deliberation of the evidence and were considered in preparing the final evidence review.
Editorial Disclaimer: This evidence report is presented as a document in support of the accompanying USPSTF Recommendation Statement. It did not undergo additional peer review after submission to JAMA.
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