Table 1 Index Case Demographic and Clinical Characteristics
From: Yield of household contact tracing for tuberculosis in rural South Africa
Variable | Overall (N = 130) | New TB in Householda (N = 9) | No New TB in Householdb (N = 121) | P-value* |
|---|---|---|---|---|
N (%) | N (%) | N (%) | ||
Female Sex | 57 (44%) | 3 (33%) | 54 (45%) | 0.731 |
Age (Median, IQR***) | 40 (31–49) | 36 (31–48) | 39 (31–49) | 0.831 |
Female-Headed Household | 67 (52%) | 7 (78%) | 60 (50%) | 0.166 |
Head of HH Income (Median, IQR) | 1270 (13–2350) | 2500 (1270–6300) | 1270 (0–2000) | 0.047 |
Education | ||||
8th grade or less | 40 (31%) | 4 (44%) | 36 (30%) | 0.278 |
At least some high school | 73 (56%) | 3 (33%) | 70 (58%) | |
More than high school | 17 (13%) | 2 (22%) | 15 (12%) | |
Unemployed | 73 (56%) | 6 (67%) | 67 (55%) | 0.731 |
Number of HH members, by Self-Report (Median, IQR) | 5 (3–6) | 6 (5–6) | 4 (3–6) | 0.130 |
Number of HH Contacts Participating in Study (Median, IQR) | 2 (1–3) | 3 (2–6) | 2 (1–3) | 0.005 |
Years lived in HH (Median, IQR) | 30 (20–40) | 37 (28–43) | 30 (19–39) | 0.235 |
Previous TB | 15 (12%) | 1 (11%) | 14 (12%) | 1.0 |
TB Symptoms | ||||
Cough | 58 (45%) | 4 (44%) | 54 (45%) | 1.0 |
Fever | 45 (35%) | 1 (11%) | 44 (36%) | 0.162 |
Fatigue | 64 (49%) | 4 (44%) | 60 (50%) | 1.0 |
Loss of appetite | 25 (19%) | 1 (11%) | 24 (20%) | 1.0 |
Weight loss | 84 (65%) | 5 (56%) | 79 (65%) | 0.720 |
Night sweats | 55 (42%) | 5 (56%) | 50 (41%) | 0.493 |
At least one TB symptom | 112 (86%) | 7 (78%) | 105 (87%) | 0.611 |
Symptom duration | ||||
No symptoms | 18 (14%) | 2 (22%) | 16 (13%) | 0.357 |
< 1 month | 57 (44%) | 3 (33%) | 54 (45%) | |
1–6 months | 32 (25%) | 1 (11%) | 31 (26%) | |
> 6 months | 23 (18%) | 3 (33%) | 20 (17%) | |
Smear Positive (overall n = 60)** | 44 (73%) | 2 (29%) | 42 (79%) | 0.012 |
Xpert MTB/RIF Positive (overall n = 64)c | 55 (86%) | 2 (67%) | 53 (87%) | 0.370 |