Table 2.
Multivariable Analysis of Factors Associated with Medicaid Discontinuity (n = 336)
| Variable | Incidence of discontinuity | Odds of zero discontinuity | ||
|---|---|---|---|---|
| IRR (95% CI) | aIRRa(95% CI) | OR (95% CI) | AORa(95% CI) | |
| Year | ||||
| 2006 | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) |
| 2007 | 0.94 (0.61,1.43) | 0.97 (0.63,1.48) | 1.19 (0.68,2.10) | 1.14 (0.63,2.08) |
| 2008 | 0.89 (0.65,1.22) | 0.90 (0.68,1.21) | 0.93 (0.53,1.63) | 0.93 (0.51,1.69) |
| 2009 | 0.64 (0.44,0.92) | 0.62 (0.45,0.86) | 0.95 (0.55,1.66) | 0.92 (0.50,1.71) |
| 2010 | 0.78 (0.56,1.08) | 0.74 (0.53,1.03) | 1.07 (0.63,1.83) | 1.07 (0.58,1.97) |
| Gender | ||||
| Female | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) |
| Male | 0.99 (0.77,1.27) | 1.20 (0.95,1.50) | 0.66 (0.43,1.03) | 0.71 (0.44,1.13) |
| Age | ||||
| 18–21 | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) |
| 22–24 | 0.95 (0.75,1.19) | 1.02 (0.80,1.31) | 0.89 (0.61,1.30) | 1.07 (0.66,1.75) |
| Race/ethnicityb | ||||
| Black | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) |
| White | 1.19 (0.80, 1.78) | 1.51 (1.10, 2.06) | 1.16 (0.64, 2.11) | 1.83 (0.93, 3.61) |
| Other | 0.93 (0.61, 1.42) | 0.99 (0.67, 1.47) | 1.55 (0.86, 2.81) | 1.44 (0.73, 2.85) |
| Medicaid eligibility type | ||||
| Low income | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) |
| Disability | 0.98 (0.76,1.27) | 0.96 (0.75,1.24) | 2.25 (1.43,3.57) | 2.18 (1.26,3.78) |
| Otherc | 0.73 (0.50,1.06) | 0.91 (0.60,1.40) | 0.59 (0.34,1.05) | 0.63 (0.30,1.31) |
| Risk categoryd | ||||
| nPHIV | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) |
| PHIV | 0.98 (0.77,1.23) | 1.22 (0.92,1.60) | 1.46 (0.94,2.25) | 1.55 (0.70,3.43) |
| CD4 count | ||||
| ≤200 | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) |
| 201–499 | 1.33 (0.95,1.87) | 1.54 (1.05,2.28) | 0.70 (0.40,1.21) | 0.87 (0.49,1.56) |
| ≥500 | 1.47 (1.04,2.07) | 1.65 (1.14,2.39) | 0.78 (0.42,1.43) | 1.03 (0.53,2.00) |
| On ARTe | ||||
| No | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) | 1.0 (ref) |
| Yes | 0.95 (0.76,1.19) | 1.01 (0.82,1.25) | 1.20 (0.78,1.84) | 1.16 (0.75,1.80) |
Results in bold are statistically significant (p < 0.05).
Adjusted models include site, in addition to variables listed in table.
Race/ethnicity: white includes non-Hispanic; black includes African American and Caribbean; and other includes Hispanic/Latino, Asian, Pacific Islander, American Indian, Unknown, or coded as “Other”
Other eligibility type includes foster care and those coded “other”
nPHIV includes male-to-male sexual contact, IV drug use, heterosexual contact, transfusion, female sexual contact with females, other, and unknown. PHIV includes those infected at birth.
Combination ART.
aIRR, adjusted incidence rate ratio; AOR, adjusted odds ratio; ART, antiretroviral therapy; CI, confidence interval; IRR, incidence rate ratio; nPHIV, nonperinatally HIV infected; OR, odds ratio; PHIV, perinatally HIV infected.