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Table 4 Univariate analysis of risk factors for type of TB among the screened HHC of children with active TB (n = 223)

From: Contact screening and risk factors for TB among the household contact of children with active TB: a way to find source case and new TB cases

Characteristics TB OR 95% CI P-value
Yes n (%) No n (%)
Gender
 Male 14 (13.5) 90 (86.5) 0.726 0.348–1.513 0.393
 Female 21 (17.6) 98 (82.4) 1.378 0.661–2.871
Age (years)
  ≤ 2 21 (23.6) 68 (76.4) 2.647 1.264–5.541 0.010
 3–5 9 (16.7) 45 (83.3) 1.100 0.480–2.519 0.822
 6–10 4 (7.5) 49 (92.5) 0.366 0.123–1.090 0.071
 11–14 1 (3.7) 26 (96.3) 0.183 0.024–1.397 0.102
Residence
 Rural 11 (12.9) 74 (87.1) 0.706 0.327–1.527 0.376
 Urban 24 (17.4) 114 (82.6) 1.416 0.655–3.036
Weight (percentiles)
 Underweighta 32 (16.3) 164 (83.7) 1.561 0.443–5.495 0.488
 Normal weight 3 (11.1) 24 (88.9) 0.641 0.182–2.255
BCG scar
 Present 27 (14.3) 162 (85.7) 0.542 0.222–1.320 0.177
 Absent 8 (23.5) 26 (76.5) 1.846 0.757–4.500
Monthly income of family (PKRs)
  < 5000 4 (50) 4 (50) 5.935 1.410–24.982 0.015
 6000–10,000 21 (17.8) 97 (82.2) 1.407 0.675–2.933 0.362
 11,000–20,000 8 (9.5) 76 (90.5) 0.437 0.188–1.012 0.053
  > 20,000 2 (15.4) 11 (84.6) 0.975 0.207–4.603 0.975
Education of caregiver
 No formal  education 19 (20.2) 75 (79.8) 1.789 0.865–3.699 0.116
 Primary 3 (9.4) 29 (90.6) 0.514 0.148–1.790 0.296
 Secondary 8 (19.5) 33 (80.5) 1.392 0.581–3.335 0.459
 College 2 (7.7) 24 (92.3) 0.414 0.093–1.838 0.246
 Graduation 3 (10) 27 (90) 0.559 0.160–1.954 0.362
Type of housing
 Slum house 3 (8.6) 32 (91.4) 0.457 0.132–1.584 0.217
 House 9 (10.2) 79 (89.8) 0.478 0.212–1.075 0.074
 Apartment 5 (13.9) 31 (86.1) 0.844 0.304–2.346 0.745
 Shelter 18 (28.1) 46 (71.9) 3.269 1.557–6.862 0.002
Number of rooms in house
 1–2 26 (17.2) 125 (82.8) 1.456 0.644–3.294 0.367
 3–4 9 (12.5) 63 (87.5) 0.687 0.304–1.554
Overcrowding
 Members per household > 6 32 (19.5) 132 (80.5) 4.525 1.331–15.390 0.016
 Members per household ≤6 3 (5.1) 56 (94.9) 0.221 0.065–0.752
HHC with TB
 Yes 29 (46) 34 (54) 21.892 8.432–56.849 <  0.001
 No 6 (3.8) 154 (96.2) 0.046 0.018–0.119
HHC with smoking
 Yes 31 (28.4) 78 (71.6) 10.929 3.716–32.214 <  0.001
 No 4 (3.5) 110 (96.5) 0.091 0.031–0.270  
Time spent with TB HHC (hours)
 8–11 5 (7.9) 58 (92.1) 0.374 0.138–1.011 0.053
 12–17 7 (7.6) 85 (92.4) 0.303 0.126–0.728 0.008
  > 18 23 (33.8) 45 (66.2) 6.091 2.808–13.210 <  0.001
Cooking done in the house
 Inside the kitchen 28 (15.2) 156 (84.8) 0.821 0.330–2.041 0.671
 Inside the room 5 (21.7) 18 (78.3) 1.574 0.543–4.562 0.403
 Outside the space attached to house 2 (12.5) 14 (87.5) 0.753 0.163–3.470 0.716
Kind of fuel used for cooking
 LPG 2 (15.4) 11 (84.6) 0.975 0.207–4.603 0.975
 Natural gas 24 (16.2) 124 (83.8) 1.126 0.519–2.444 0.764
 Wood 8 (23.5) 26 (76.5) 1.846 0.757–4.500 0.177
 Charcoal 1 (3.6) 27 (96.4) 0.175 0.023–1.335 0.093
Use boiled milk
 Yes 6 (16.2) 31 (83.8) 1.048 0.401–2.736 0.924
 No 6 (31.6) 13 (68.4) 2.785 0.980–7.912 0.055
 Do not use milk 23 (13.8) 144 (86.2) 0.586 0.270–1.272 0.176
Use boiled water for drinking
 Yes 3 (4.8) 59 (95.2) 0.205 0.060–0.696 0.011
 No 32 (19.9) 129 (80.1) 4.879 1.436–16.572
  1. a< 5 percentiles