Table 2. Open in new tab Prevalence of...

Characteristic	Contacts of Index TB Cases	Contacts of Community Controls
Total	515	989	52.1	235	380	61.8	280	609	46.0	396	1026	38.6
Age
0–4 y	49	115	42.6	41	80	51.2	8	35	22.9	1	56	1.8
5–14 y	63	144	43.8	62	98	63.3	1	46	2.2	13	109	11.9
≥15 y	403	730	55.2	132	202	65.3	271	528	51.3	382	861	44.4
Sex
Male
All	261	477	54.7	102	166	61.4	159	311	51.1	264	571	46.2
0–4 y	32	70	45.7	26	49	53.1	6	21	28.6	1	27	3.7
5–14 y	30	70	42.9	30	46	65.2	0	24	0.0	8	54	14.8
≥15 y	199	337	59.1	46	71	64.8	153	266	57.5	255	490	52.0
Female
All	254	512	49.6	133	214	62.1	121	298	40.6	132	455	29.0
0–4 y	17	45	37.8	15	31	48.4	2	14	14.3	0	29	0.0
5–14 y	33	74	44.6	32	52	61.5	1	22	4.5	5	55	9.1
≥15 y	204	393	51.9	86	131	65.6	118	262	45.0	127	371	34.2
HIV serostatus
Positive	45	81	55.6	17	25	68.0	28	56	50.0	23	64	35.9
Negative	470	908	51.8	218	137	61.4	252	553	45.6	373	962	38.8

Characteristic

Contacts of Index TB Cases

Contacts of Community Controls

All Contacts

Only Household

Only Extrahousehold

Total

Prevalence of Infection, %

Total

Prevalence of Infection, %

Total

Prevalence of Infection, %

Total

Prevalence of Infection, %

Total

515

989

52.1

235

380

61.8

280

609

46.0

396

1026

38.6

Age

0–4 y

115

42.6

51.2

22.9

1.8

5–14 y

144

43.8

63.3

2.2

109

11.9

≥15 y

403

730

55.2

132

202

65.3

271

528

51.3

382

861

44.4

Sex

Male

All

261

477

54.7

102

166

61.4

159

311

51.1

264

571

46.2

0–4 y

45.7

53.1

28.6

3.7

5–14 y

42.9

65.2

0.0

14.8

≥15 y

199

337

59.1

64.8

153

266

57.5

255

490

52.0

Female

All

254

512

49.6

133

214

62.1

121

298

40.6

132

455

29.0

0–4 y

37.8

48.4

14.3

0.0

5–14 y

44.6

61.5

4.5

9.1

≥15 y

204

393

51.9

131

65.6

118

262

45.0

127

371

34.2

HIV serostatus

Positive

55.6

68.0

50.0

35.9

Negative

470

908

51.8

218

137

61.4

252

553

45.6

373

962

38.8

Characteristic	Contacts of Index TB Cases	Contacts of Community Controls
Total	515	989	52.1	235	380	61.8	280	609	46.0	396	1026	38.6
Age
0–4 y	49	115	42.6	41	80	51.2	8	35	22.9	1	56	1.8
5–14 y	63	144	43.8	62	98	63.3	1	46	2.2	13	109	11.9
≥15 y	403	730	55.2	132	202	65.3	271	528	51.3	382	861	44.4
Sex
Male
All	261	477	54.7	102	166	61.4	159	311	51.1	264	571	46.2
0–4 y	32	70	45.7	26	49	53.1	6	21	28.6	1	27	3.7
5–14 y	30	70	42.9	30	46	65.2	0	24	0.0	8	54	14.8
≥15 y	199	337	59.1	46	71	64.8	153	266	57.5	255	490	52.0
Female
All	254	512	49.6	133	214	62.1	121	298	40.6	132	455	29.0
0–4 y	17	45	37.8	15	31	48.4	2	14	14.3	0	29	0.0
5–14 y	33	74	44.6	32	52	61.5	1	22	4.5	5	55	9.1
≥15 y	204	393	51.9	86	131	65.6	118	262	45.0	127	371	34.2
HIV serostatus
Positive	45	81	55.6	17	25	68.0	28	56	50.0	23	64	35.9
Negative	470	908	51.8	218	137	61.4	252	553	45.6	373	962	38.8

Table 2.

Open in new tab

Prevalence of Tuberculous Infection in Household and Extrahousehold Contacts of Tuberculosis Cases and Their Controls

Characteristic	Contacts of Index TB Cases									Contacts of Community Controls
	All Contacts			Only Household			Only Extrahousehold			Contacts of Community Controls
	TI	Total	Prevalence of Infection, %	TI	Total	Prevalence of Infection, %	TI	Total	Prevalence of Infection, %	TI	Total	Prevalence of Infection, %
Total	515	989	52.1	235	380	61.8	280	609	46.0	396	1026	38.6
Age
0–4 y	49	115	42.6	41	80	51.2	8	35	22.9	1	56	1.8
5–14 y	63	144	43.8	62	98	63.3	1	46	2.2	13	109	11.9
≥15 y	403	730	55.2	132	202	65.3	271	528	51.3	382	861	44.4
Sex
Male
All	261	477	54.7	102	166	61.4	159	311	51.1	264	571	46.2
0–4 y	32	70	45.7	26	49	53.1	6	21	28.6	1	27	3.7
5–14 y	30	70	42.9	30	46	65.2	0	24	0.0	8	54	14.8
≥15 y	199	337	59.1	46	71	64.8	153	266	57.5	255	490	52.0
Female
All	254	512	49.6	133	214	62.1	121	298	40.6	132	455	29.0
0–4 y	17	45	37.8	15	31	48.4	2	14	14.3	0	29	0.0
5–14 y	33	74	44.6	32	52	61.5	1	22	4.5	5	55	9.1
≥15 y	204	393	51.9	86	131	65.6	118	262	45.0	127	371	34.2
HIV serostatus
Positive	45	81	55.6	17	25	68.0	28	56	50.0	23	64	35.9
Negative	470	908	51.8	218	137	61.4	252	553	45.6	373	962	38.8

Characteristic	Contacts of Index TB Cases									Contacts of Community Controls
	All Contacts			Only Household			Only Extrahousehold			Contacts of Community Controls
	TI	Total	Prevalence of Infection, %	TI	Total	Prevalence of Infection, %	TI	Total	Prevalence of Infection, %	TI	Total	Prevalence of Infection, %
Total	515	989	52.1	235	380	61.8	280	609	46.0	396	1026	38.6
Age
0–4 y	49	115	42.6	41	80	51.2	8	35	22.9	1	56	1.8
5–14 y	63	144	43.8	62	98	63.3	1	46	2.2	13	109	11.9
≥15 y	403	730	55.2	132	202	65.3	271	528	51.3	382	861	44.4
Sex
Male
All	261	477	54.7	102	166	61.4	159	311	51.1	264	571	46.2
0–4 y	32	70	45.7	26	49	53.1	6	21	28.6	1	27	3.7
5–14 y	30	70	42.9	30	46	65.2	0	24	0.0	8	54	14.8
≥15 y	199	337	59.1	46	71	64.8	153	266	57.5	255	490	52.0
Female
All	254	512	49.6	133	214	62.1	121	298	40.6	132	455	29.0
0–4 y	17	45	37.8	15	31	48.4	2	14	14.3	0	29	0.0
5–14 y	33	74	44.6	32	52	61.5	1	22	4.5	5	55	9.1
≥15 y	204	393	51.9	86	131	65.6	118	262	45.0	127	371	34.2
HIV serostatus
Positive	45	81	55.6	17	25	68.0	28	56	50.0	23	64	35.9
Negative	470	908	51.8	218	137	61.4	252	553	45.6	373	962	38.8

Includes latent tuberculosis infection or tuberculosis disease.

Abbreviation: TI, tuberculous infection.

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