Table 3.

Adjusted regression models on tuberculosis outcome

		Model 1: log km		Model 2: within or outside 10 km		Model 3: within or outside 5 km
		Adjusted RR (95% CI)	p value	Adjusted RR (95% CI)	p value	Adjusted RR (95% CI)	p value
Distance		0·95 (0·91–0·99)	0·026	1·28 (0·90–1·19)	0·61	1·18 (1·02–1·36)	0·024
Sex
	Male	..	..	..	..	..	..
	Female	0·78 (0·67–0·90)	0·0007	0·77 (0·67–0·89)	0·0004	0·77 (0·67–0·89)	0·0005
Population group
	White	..	..	..	..	..	..
	African	12·62 (5·71–27·89)	<0·0001	13·38 (6·06–29·55)	<0·0001	13·37 (6·05–29·54)	<0·0001
	Coloured	14·56 (6·53–32·47)	<0·0001	15·70 (7·05–34·97)	<0·0001	15·63 (7·02–34·81)	<0·0001
	Asian or Indian	1·44 (0·36–5·76)	0·60	1·55 (0·39–6·18)	0·54	1·55 (0·39–6·20)	0·53
Age category
	15–19 years	..	..	..	..	..	..
	20–24 years	2·03 (1·44–2·87)	0·0001	2·09 (1·47–2·96)	<0·0001	2·07 (1·46–2·94)	<0·0001
	25–29 years	4·77 (3·42–6·66)	<0·0001	4·95 (3·54–6·92)	<0·0001	4·90 (3·50–6·85)	<0·0001
	30–34 years	8·03 (5·65–11·39)	<0·0001	8·18 (5·75–11·63)	<0·0001	8·07 (5·68–11·48)	<0·0001
	35–64 years	9·84 (7·09–13·66)	<0·0001	10·15 (7·30–14·12)	<0·0001	10·03 (7·22–13·94)	<0·0001
	≥65 years	6·25 (4·27–9·16)	<0·0001	6·46 (4·40–9·48)	<0·0001	6·39 (4·35–9·38)	<0·0001
Marital status
	Single	..	..	..	..	..	..
	Living with partner	1·40 (1·13–1·74)	0·0023	1·40 (1·12–1·74)	0·0026	1·40 (1·13–1·74)	0·0023
	Widow or widower	1·16 (0·93–1·45)	0·19	1·17 (0·93–1·46)	0·18	1·16 (0·93–1·45)	0·19
	Divorced or separated	1·32 (0·97–1·80)	0·078	1·32 (0·97–1·80)	0·075	1·32 (0·97–1·80)	0·080
	Never married	1·62 (1·35–1·95)	<0·0001	1·65 (1·37–1·98)	<0·0001	1·65 (1·37–1·98)	<0·0001
Highest educational attainment
	High school not completed	..	..	..	..	..	..
	Completed high school	0·96 (0·79–1·16)	0·65	0·97 (0·80–1·17)	0·75	0·96 (0·80–1·17)	0·70
	Beyond high school	0·57 (0·43–0·76)	0·0001	0·59 (0·44–0·78)	0·0002	0·58 (0·44–0·77)	0·0002
Employment status
	Unemployed	..	..	..	..	..	..
	Employed	0·82 (0·72–0·93)	0·0024	0·83 (0·73–0·94)	0·0035	0·83 (0·73–0·94)	0·0029
Household income quintile
	1 (lowest)	..	..	..	..	..	..
	2	0·87 (0·75–1·00)	0·049	0·86 (0·75–0·99)	0·036	0·86 (0·75–0·99)	0·041
	3	0·82 (0·70–0·97)	0·017	0·82 (0·70–0·97)	0·019	0·83 (0·70–0·97)	0·021
	4	0·80 (0·68–0·94)	0·0064	0·79 (0·67–0·92)	0·0035	0·79 (0·67–0·93)	0·0044
	5 (highest)	0·64 (0·52–0·78)	<0·0001	0·63 (0·52–0·77)	<0·0001	0·63 (0·52–0·77)	<0·0001
Residential area
	Rural	..	..	..	..	..	..
	Urban formal	0·95 (0·82–1·11)	0·52	1·00 (0·86–1·17)	0·97	0·96 (0·82–1·12)	0·62
	Urban informal	1·09 (0·87–1·38)	0·45	1·15 (0·91–1·46)	0·25	1·10 (0·87–1·39)	0·43

The term “coloured” is used by Statistics South Africa,⁴⁹ a South African ethnic label that includes children and descendants from black-white, black-Asian, black-coloured, and white-Asian unions.⁵⁰ The regression model is adjusted on the basis of post-stratification weight (from final observation of the individual panel) to reflect more recent population estimates produced by Statistics South Africa. RR=relative risk.