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Table 2 Odds ratios of likelihood of emergency department utilization based on abstracted demographic and HIV-specific variables

From: Emergency department utilization by HIV-positive adults in the HAART era

Demographic/HIV-specific variable Referent value (if applicable) Odds ratio 95% confidence interval p value
Demographic variable
 Age   0.99 0.95–1.03 0.56
 Sex Female 1.36 0.63–2.94 0.44
 Race Non-Caucasian 0.74 0.38–1.42 0.36
 Income level (1–2× FPL) Income level (<FPL) 0.58 0.27–1.24 0.16
 Income level (2–3× FPL) 0.36 0.12–1.09 0.07
 Income level (>3× FPL) 0.07 0.008–0.52 0.01
HIV clinical variable
 Years since HIV diagnosis   1.05 0.98–1.11 0.16
 Years on HAART   1.01 0.89–1.15 0.89
 On HAART in 2006 Yes 0.54 0.17–1.75 0.31
 HAART Interrupted in 2006 Yes 1.66 0.48–5.72 0.42
HIV laboratory variable
 Highest viral load on record (401–1,000) Highest viral load on record (<400 copies/ml) 0.93 0.09–9.73 0.95
 Highest viral load on record (1,001–100,000) 0.93 0.30–2.86 0.90
 Highest viral load on record (>100,000) 0.81 0.24–2.74 0.74
 Mean viral load in 2006 (401–1,000) Mean viral load in 2006 (<400 copies/ml) 0.79 0.08–7.12 0.79
 Mean viral load in 2006 (1,001–100,000) 3.49 1.26–9.73 0.02
 Mean viral load in 2006 (>100,000) 5.43 1.39–21.21 0.02
 Lowest CD4 count on record (0–200) Lowest CD4 count on record (>350 cells/ml) 1.14 0.36–3.57 0.82
 Lowest CD4 count on record (201–350) 0.87 0.33–2.27 0.77
 Mean CD4 count in 2006 (0–200) Mean CD4 count in 2006 (>350 cells/ml) 0.61 0.18–2.07 0.43
 Mean CD4 count in 2006 (201–350) 0.97 0.35–2.69 0.95