TABLE 3.

Bivariable and multivariable GEE¹ analyses of factors associated with hospital readmission within 30-days of discharge for the similar cause

Characteristic	Odds Ratio (OR) excluding same day readmission
	Unadjusted OR (95% CI)	Adjusted OR (95% CI)
Attachment to primary physician within 12 months (per 10% increase)	0.84 (0.82–0.86)	0.86 (0.84–0.88)
Sex (female vs male)	1.10 (0.98–1.23)	0.95 (0.84–1.07)
History of injection drug use
No	Reference
Yes	1.51 (1.36–1.68)	1.04 (0.93–1.17)
Unknown	1.71 (1.47–2.00)	1.30 (1.11–1.52)
Discharge against medical advice (yes vs no)	3.49 (3.12– 3.90)	2.94 (2.61–3.32)
Age at admission (per 10 years)	0.86 (0.82–0.89)	0.96 (0.91–1.01)
Calendar year (per 10 years)	0.73 (0.67–0.79)	0.73 (0.65–0.81)
Charlson comorbidity index (per unit increase)	1.07 (1.06–1.09)	1.08 (1.07–1.10)
Latest viral load within 12 months (log10 copies/ml)	1.24 (1.20–1.28)	1.05 (1.01–1.09)
Latest CD4 within 12 months (100 cells/mm3)
0–49	Reference
50–199	0.48 (0.42–0.55)	0.56 (0.48–0.64)
200–349	0.33 (0.29–0.38)	0.46 (0.39–0.53)
350+	0.29 (0.25–0.33)	0.47 (0.40–0.55)
Unknown	0.31 (0.25–0.39)	0.51 (0.40–0.65)

¹Generalized estimating equations