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Table 3 Medical experiences of primary MDR-TB cases and controls, sex and age (±5 years) matched

From: Factors associated with primary transmission of multidrug-resistant tuberculosis compared with healthy controls in Henan Province, China

Variables Primary MDR-TB cases Controls Wald χ 2 value p-value COR (95% CI)
n (%) n (%)
Total (N)   146 (100.00) 146 (100.00) NA NA NA
Medically insured Yes 97 (66.67) 137 (94.12)    1.00
  No 49 (33.33) 9 (5.88) 7.69 0.0056 8.00 (1.84–34.79)
Being vaccinated with BCG vaccine Yes 77 (52.94) 92 (62.75)    1.00
  No 69 (47.06) 54 (37.25) 1.28 0.2571 1.71 (0.68–4.35)
Ever visiting hospitals No 106 (72.55) 94 (64.71)    1.00
  Yes 40 (27.45) 52 (35.29) 0.79 0.3744 0.67 (0.27–1.63)
Suffering from diabetes, cardiovascular disease, other respiratory diseases, or cancer No 109 (74.51) 140 (96.08)    1.00
  Yes 37 (25.49) 6 (3.92) 5.70 0.0170 12.00 (1.56–92.27)
Possible exposure to TB cases No 80 (54.90) 86 (58.82)    1.00
  Yes 66 (45.10) 60 (41.18) 0.13 0.7156 1.14 (0.56–2.34)
  1. NOTE: COR: crude odds ratio; CI: confidence interval; NA: not applicable