Table 2: Prevalence of HIV among Medicare Beneficiaries 65 years of age and older who qualified based on age.

Non-HIV (N)HIV (N)Prevalence per 100,000 (95% CI)Relative risk (95% CI) 𝑃 value

Gender
 Male58,211118202.3 (168.9, 242.3)1.91 (1.39, 2.63)<0.001
 Female52,83456105.9 (81.5, 137.6)Reference

Race
 White96,437102105.7 (87.0, 128.3)Reference
 Black8,77164724.4 (567.0, 925.5)6.86 (5.02, 9.36)<0.001
 Other5,8378136.9 (68.4, 273.7)1.30 (0.63, 2.66)0.480

Age, years
 65–7455,491106190.7 (157.6, 230.6)Reference
 75–8446,58562132.9 (103.6, 170.5)0.70 (0.51, 0.95)0.024
 85+8,969666.9 (30.0, 148.8)0.35 (0.15, 0.80)0.012

Marital status—Men
 Never married4,34639889.4 (649.8, 1217.3)6.07 (4.14, 8.90)<0.001
 Other53,86579146.4 (117.5, 182.6)Reference

Marital status—Women
 Never married3,465386.5 (27.9, 268.2)0.81 (0.25, 2.58)0.717
 Other49,36953107.2 (81.9, 140.4)Reference

Urban/Rural Residence
 Big Metro67,937142208.6 (176.9, 245.9)Reference
 Metro28,72530104.3 (72.9, 149.2)0.50 (0.34, 0.74)<0.001
 Other14,383213.9 (3.5, 55.6)0.07 (0.02, 0.27)<0.001