Table 1. Prevalence of culture-positive TB in the two communities, overall and by individual and household characteristics.

	COMMUNITY A						COMMUNITY B
				Cluster, age, sex standardized							Cluster, age, sex standardised
	N	TB	Prev/1000*	Prev/1000**	95% CI		N	TB	Prev/1000*	Prev/1000**		95% CI
Prevalence before imputation				34	27	43				24		17	33
Prevalence after imputation	2726	67	25	32	25	41	3536	79	22	24		17	32
Sex and age
Male
15–24	362	6	17	21	11	42	503	4	8	8		4	18
25–34	233	9	39	46	26	80	299	10	33	34		20	55
35–44	163	11	67	72	37	138	277	10	36	34		18	60
45–54	122	4	33	35	15	80	217	9	41	42		20	88
55+	99	7	71	77	49	120	184	5	27	28		14	53
Female
15–24	603	12	20	23	14	36	599	13	22	22		13	36
25–34	448	9	20	24	14	42	396	10	25	26		13	51
35–44	334	5	15	19	8	44	432	12	28	29		16	53
45–54	185	3	16	19	6	57	360	3	8	9		3	26
55+	177	1	6	6	1	48	269	3	11	11		3	34
ever TB
no	2308	46	20	26	19	34	2992	56	19	20		14	28
yes	404	21	52	69	38	123	538	23	43	45		25	78
missing	14	0					6	0
how many meals
less than 3	1243	39	31	40	30	53	1264	29	23	24		14	41
3 or more	1349	26	19	25	17	36	2105	46	22	24		16	35
missing	134	2					167	4
years in community
0–4	786	25	32	46	32	65	365	7	19	19		11	32
5–9	455	12	26	31	18	55	282	4	14	15		6	37
10–14	378	11	29	33	18	61	262	5	19	23		9	54
15–19	482	9	19	20	11	37	700	17	24	25		16	40
20–24	609	10	16	23	13	39	601	11	18	18		11	30
25+							1299	34	26	29		18	45
missing	16	0					27	1
house hold items
0	353	13	37	51	29	90	136	5	37	45		18	111
1	392	12	31	43	17	105	163	9	55	48		27	85
2	467	15	32	43	29	63	386	18	47	50		32	77
3	1077	23	21	26	16	42	1679	35	21	22		16	31
>4	434	4	9	10	4	25	1172	12	10	13		7	24
missing	3	0

^*without imputation of missing data.

^**with imputation of missing data.