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Table 1 Major characteristics of the study population as children with RID

From: Tuberculosis infection screening in children with close contact: a hospital-based study

  Total
(n = 6202)
Subgroup with no reported contact risk
(n = 5833)
Subgroup with non-household contact risk (n = 274) Subgroup with household contact risk (n = 95)
Sex     
 Male 3748 (60.4%) 3526 (60.4%) 161 (58.8%) 61 (64.2%)
 Female 2454 (39.6%) 2307 (39.6%) 113 (41.2%) 34 (35.8%)
Age     
 0–2y 2327 (37.5%) 2276 (39.0%) 40 (14.6%) 11 (11.6%)
 3–4y 924 (14.9%) 872 (14.9%) 39 (14.2%) 13 (13.7%)
 5–18 2951 (47.6%) 2685 (46.1%) 195 (71.2%) 71 (74.7%)
District     
 Eastern 4662 (75.2%) 4443 (76.2%) 161 (58.8%) 58 (61.1%)
 Middle 1042 (16.8%) 958 (16.4%) 66 (24.1%) 18 (18.9%)
 Western 498 (8.0%) 432 (7.4%) 47 (17.2%) 19 (20.0%)
Resident place     
 City 3376 (54.4%) 3185 (54.6%) 140 (51.1%) 51 (53.7%)
 Rural 2826 (45.6%) 2648 (45.4%) 134 (48.9%) 44 (46.3%)
BCG vaccination history     
 Yes 6086 (98.1%) 5722 (98.1%) 270 (98.5%) 94 (98.9%)
 No 116 (1.9%) 111 (1.9%) 4 (1.5%) 1 (1.1%)
Presence of BCG scar     
 Yes 5895 (95.0%) 5547 (95.1%) 260 (94.9%) 88 (92.6%)
 No 307 (5.0%) 286 (4.9%) 14 (5.1%) 7 (7.4%)
 IGRA positive results, n(%) 52 (0.8%) 41 (0.7%) 6 (2.2%) 5 (5.3%)
 TST positive results, n(%) 191 (3.1%) 151 (3.3%) 23 (8.4%) 17 (17.9%)
  1. Data are shown as n (%)
  2. RID respiratory and infectious diseases, BCG Bacille Calmette Guerin, IGRA interferon-gamma release assay, TST tuberculin skin test