Poor follow-up rates at a self-pay northern Indian tertiary AIDS clinic

Table 4 Odds ratios for logistic regression model

Main Effects Model
Variable	OR (95% Confidence Interval)	p-value
Age	0.94 (0.88 to 1)	0.02
Sex	0.87 (0.26 to 2.96)	0.71
Monthly income	0.82 (0.71 to 0.95)	0.004
Distance from clinic	1.06 (0.72 to 1.56)	0.92
Baseline CD4 Count	0.79 (0.64 to 0.98)	0.11
Model Including Interaction Terms
Variable	OR (95% Confidence Interval)	p-value
Age	0.92 (0.86 to 0.99)	0.02
Sex	0.77 (0.21 to 2.9)	0.71
Monthly income	0.76 (0.63 to 0.92)	0.004
Distance from clinic	0.98 (0.66 to 1.46)	0.92
Baseline CD4 Count	1.80 (0.87 to 3.7)	0.11
CD4 * Income Interaction	0.89 (0.81 to 0.99)	0.03

Note: Hazard Ratios represent the increased relative risk associated with a unit increase in the covariate; for age, 1 year; for monthly income, 500 Rs; for distance from clinic, 5 hours; for CD4 counts, 25 cells/microliter.

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