What is the association between prescribed opioids and community-acquired pneumonia requiring hospitalization among patients living with and without HIV?
In this nested case-control study of 4246 cases and 21 146 controls (25 392 participants), prescribed opioids were independently associated with community-acquired pneumonia in patients living with and without HIV. In addition, the risk for community-acquired pneumonia increased with higher opioid doses and opioids with known immunosuppressive properties.
These findings suggest that prescribed opioids independently contribute to community-acquired pneumonia risk among patients living with and without HIV; efforts to minimize prescribed opioid use, as well as to minimize use of higher doses and immunosuppressive opioids, may help mitigate this risk.
Some opioids are known immunosuppressants; however, the association of prescribed opioids with clinically relevant immune-related outcomes is understudied, especially among people living with HIV.
To assess the association of prescribed opioids with community-acquired pneumonia (CAP) by opioid properties and HIV status.
Design, Setting, and Participants
This nested case-control study used data from patients in the Veterans Aging Cohort Study (VACS) from January 1, 2000, through December 31, 2012. Participants in VACS included patients living with and without HIV who received care in Veterans Health Administration (VA) medical centers across the United States. Patients with CAP requiring hospitalization (n = 4246) were matched 1:5 with control individuals without CAP (n = 21 146) by age, sex, race/ethnicity, length of observation, and HIV status. Data were analyzed from March 15, 2017, through August 8, 2018.
Prescribed opioid exposure during the 12 months before the index date was characterized by a composite variable based on timing (none, past, or current); low (<20 mg), medium (20-50 mg), or high (>50 mg) median morphine equivalent daily dose; and opioid immunosuppressive properties (yes vs unknown or no).
Main Outcome and Measure
CAP requiring hospitalization based on VA and Centers for Medicare & Medicaid data.
Among the 25 392 VACS participants (98.9% male; mean [SD] age, 55  years), current medium doses of opioids with unknown or no immunosuppressive properties (adjusted odds ratio [AOR], 1.35; 95% CI, 1.13-1.62) and immunosuppressive properties (AOR, 2.07; 95% CI, 1.50-2.86) and current high doses of opioids with unknown or no immunosuppressive properties (AOR, 2.07; 95% CI, 1.50-2.86) and immunosuppressive properties (AOR, 3.18; 95% CI, 2.44-4.14) were associated with the greatest CAP risk compared with no prescribed opioids or any past prescribed opioid with no immunosuppressive (AOR, 1.24; 95% CI, 1.09-1.40) and immunosuppressive properties (AOR, 1.42; 95% CI, 1.21-1.67), especially with current receipt of immunosuppressive opioids. In stratified analyses, CAP risk was consistently greater among people living with HIV with current prescribed opioids, especially when prescribed immunosuppressive opioids (eg, AORs for current immunosuppressive opioids with medium dose, 1.76 [95% CI, 1.20-2.57] vs 2.33 [95% CI, 1.60-3.40]).
Conclusions and Relevance
Prescribed opioids, especially higher-dose and immunosuppressive opioids, are associated with increased CAP risk among persons with and without HIV.
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Edelman EJ, Gordon KS, Crothers K, et al. Association of Prescribed Opioids With Increased Risk of Community-Acquired Pneumonia Among Patients With and Without HIV. JAMA Intern Med. Published online January 07, 2019. doi:10.1001/jamainternmed.2018.6101
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