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Table 2 Household Contact Demographic and Clinical Information

From: Yield of household contact tracing for tuberculosis in rural South Africa

Variable

Overall (N = 279)

Lab-Confirmed TB (N = 11)

No Lab-Confirmed TB (N = 268)

P-value*

N (%)

N (%)

N (%)

Female Sex

201 (72%)

10 (91%)

191 (71%)

0.301

Age Category

 Under 5

10 (4%)

0 (0%)

10 (4%)

 

 5–14

55 (20%)

2 (18%)

53 (20%)

0.943

 15–39

112 (40%)

6 (55%)

106 (40%)

 40–64

66 (24%)

2 (18%)

64 (24%)

 65 and Older

36 (13%)

1 (9%)

35 (13%)

Female-Headed Household

146 (52%)

9 (82%)

137 (51%)

0.063

Head of Household Income (Median, IQR**)

1270 (0–2500)

1270 (1270–6300)

1270 (0–2350)

0.101

Education

 8th grade or less

140 (50%)

3 (27%)

137 (51%)

0.079

 At least some high school

114 (41%)

5 (45%)

109 (41%)

 More than high school

25 (9%)

3 (27%)

22 (8%)

Unemployed

149 (53%)

8 (73%)

141 (53%)

0.229

Body Mass Index (Median, IQR)

24 (20–28)

21 (19–29)

24 (20–28)

0.888

Current Smoker

11 (4%)

0 (0%)

11 (4%)

0.493

Previous TB Diagnosis

29 (10%)

1 (9%)

28 (11%)

0.879

History of IPT

5 (2%)

0 (0%)

5 (2%)

0.658

Number of Household members (Median, IQR)

5 (4–7)

6 (5–8)

5 (4–7)

0.248

HIV Status

 HIV-Infected

19 (7%)

0 (0%)

19 (7%)

0.792

 HIV-Uninfected

97 (35%)

3 (27%)

94 (35%)

 HIV Status Unknown

163 (58%)

8 (73%)

155 (58%)

TB Symptoms

 Cough

41 (15%)

0 (0%)

41 (15%)

0.377

 Fever

42 (15%)

1 (9%)

41 (15%)

1.0

 Fatigue

40 (14%)

0 (0%)

40 (15%)

0.374

 Loss of appetite

13 (5%)

1 (9%)

12 (4%)

0.414

 Weight loss

38 (14%)

1 (9%)

37 (14%)

1.0

 Night sweats

51 (18%)

1 (9%)

50 (19%)

0.695

 At least one TB symptom

122 (44%)

2 (18%)

120 (45%)

0.120

Symptom duration

 No symptoms

157 (56%)

9 (82%)

148 (55%)

0.465

  < 1 month

53 (19%)

1 (9%)

52 (19%)

 1–6 months

32 (11%)

1 (9%)

31 (12%)

  > 6 months

37 (13%)

0 (0%)

37 (14%)

Smear Positive

1 (0.4%)

1 (9%)

Culture Positive

28 (11%)

10 (91%)

18 (8%)

MTB Culture Positive

10 (4%)

10 (91%)

Smear or MTB Culture Positive

11 (4%)

11 (100%)

  1. *Categorical variables were tested using Fisher’s Exact Test, and continuous variables were tested with a Ranksum test
  2. **IQR: Interquartile range