Skip to main content

Table 3 Predictors of non-adherence to ART and anti-TB medication (N = 757)

From: Predictors of tuberculosis (TB) and antiretroviral (ARV) medication non-adherence in public primary care patients in South Africa: a cross sectional study

Socio-demographics

Crude OR (95% CI)

Adjusted OR (95% CI)a,b

Age 18–34

1.00

1.00

Age 35–44

0.68 (0.49–0.95)*

0.63 (0.38–1.03)

Age 45 and older

1.12 (0.76–1.64)

0.90 (0.49–1.67)

Female

1.00

1.00

Male

1.61 (1.20–2.16)***

1.49 (0.95–2.32)

Grade 7 or less

1.00

1.00

Grade 8–11

0.66 (0.47–0.93)*

1.13 (0.67–1.93)

Grade 12 or more

0.79 (0.53–1.17)

1.19 (0.65–2.18)

Poverty low

1.00

1.00

Poverty medium

3.14 (2.05–4.79)***

2.60 (1.46–4.65)***

Poverty high

7.13 (4.36–11.66)***

3.89 (1.87–8.12)***

Health variables

Perceived health status

Very good/good

1.00

1.00

Good

0.41 (0.28–0.59)***

0.69 (0.40–1.17)

Fair/Poor

0.20 (0.14–0.29)***

0.28 (0.17–0.49)***

TB retreatment patient

1.00

1.00

New TB patient

0.51 (0.37–0.71)***

0.67 (0.42–1.07)

Chronic conditions

Zero

1.00

1.00

One

1.39 (0.91–2.12)

1.72 (1.01–2.94)*

Two

1.50 (0.87–2.58)

2.73 (1.31–5.65)**

Three or more

2.45 (1.33–0.45)**

5.33 (2.27–12.55)***

Severe psychological distress (K ≥ 30)

1.00 (0.72–1.37)

Alcohol: low risk (AUDIT 0–7)

1.00

1.00

Medium (AUDIT 8–19)

1.65 (1.11–2.45)*

1.08 (0.56–2.09)

High (AUDIT 20–40)

2.76 (1.30–5.86)**

13.09 (2.96–57.99)*

Current tobacco use

2.30 (1.65–3.19)***

1.44 (0.85–2.43)

Partner HIV negative/unknown

1.00

1.00

Partner HIV positive

2.41 (1.75–3.32)***

3.12 (1.84–5.29)***

Had sex in past 3 months

1.44 (1.07–1.93)*

1.48 (0.96–2.28)

Sex partner on ART

0.51 (0.35–0.74)***

0.50 (0.25–0.97)*

  1. *P < 0.05; ** P < 0.01; *** P < 0.001.
  2. aUsing “enter” LR selection of variables.
  3. bHosmer and Lemeshow Chi-square 13.14df8, 0.107; Cox and Snell R2 0.24; Nagelkerke R2 0.33.