Table 2

Predictors of non-adherence to TB medication (N = 3107)
Socio-demographics Crude OR (95% CI) Adjusted OR (95% CI)a,b
Age 18–24 1.00 1.00
Age 25–34 0.76 (0.59–0.97)* 0.93 (0.65–1.32)
Age 35–44 0.77 (0.60–1.00) 1.00 (0.68–1.45)
Age 45 and older 0.80 (0.61–1.05) 0.65 (0.43–1.00)
Female 1.00 1.00
Male 1.26 (1.07–1.48)** 1.09 (0.86–1.38)
Grade 7 or less 1.00 1.00
Grade 8–11 0.88 (0.72–1.06) 1.07 (0.80–1.43)
Grade 12 or more 0.68 (0.55–0.85)*** 0.76 (0.54–1.07)
Poverty low 1.00 1.00
Poverty medium 1.97 (1.62–2.410*** 1.73 (1.34–2.24)***
Poverty high 4.01 (3.12–5.10)*** 1.65 (1.14–2.39)**
Health variables
Perceived health status
Excellent/Very good 1.00 1.00
Good 0.36 (0.29–0.45)*** 0.50 (0.37–0.67)***
Fair/Poor 0.24 (0.20–0.30)*** 0.44 (0.32–0.60)***
TB retreatment patient 1.00
New TB patient 0.82 (0.67–1.00)
HIV positive 1.00 1.00
HIV negative 0.40 (0.34–0.48)*** 0.44 (0.33–0.59)***
Chronic conditions
Zero 1.00 1.00
One 1.54 (1.23–1.93)*** 1.86 (1.41–2.46)***
Two 1.84 (1.34–2.51)*** 2.44 (1.68–3.56)***
Three or more 1.98 (1.34–2.92)*** 2.37 (1.45–3.88)***
Severe psychological distress (K ≥ 30) 1.31 (1.09–1.57)** 0.94 (0.73–1.22)
Alcohol: low risk (AUDIT 0–7) 1.00 1.00
Medium (AUDIT 8–19) 1.74 (1.42–2.19)*** 1.65 (1.23–2.29)***
High (AUDIT 20–40) 2.42 (1.76–3.32)*** 3.06 (1.94–4.81***
Current tobacco use 2.09 (1.76–2.49)*** 1.35 (1.04–1.75)*
On ART 0.70 (0.56–0.86)*** 0.78 (0.60–1.03)
Partner HIV negative/unknown 1.00 1.00
Partner HIV positive 1.41 (1.16–1.70)*** 1.43 (1.10–1.84)**

*P < 0.05; ** P < 0.01; *** P < 0.001.

aUsing “enter” LR selection of variables.

bHosmer and Lemeshow Chi-square 7.68, df8, 0.466; Cox and Snell R2 0.11; Nagelkerke R2 0.16.

Naidoo et al.

Naidoo et al. BMC Public Health 2013 13:396   doi:10.1186/1471-2458-13-396

Open Data