Table 2 Univariate and multivariate logistic regression analyses of characteristics of TB patients in association with rifampicin resistance.

Gender

Male

1150 (83.7)

224 (16.3)

1374

1.00

1.00

Female

712 (85.4)

122 (14.6)

834

0.88 (0.69–1.12), 0.294

0.95 (0.73–1.23), 0.682

Age (years)

 ≤ 20

217 (88.9)

27 (11.1)

244

1.00

1.00

21–40

432 (76.7)

131 (23.3)

563

2.44 (1.56–3.80), < 0.0001

1.73 (1.09–2.76), 0.021

41–60

580 (82.0)

127 (18.0)

707

1.76 (1.13–2.74), 0.013

1.11 (0.70–1.78), 0.652

 > 60

633 (91.2)

61 (8.8)

694

0.77 (0.48–1.25), 0.295

0.54 (0.33–0.89), 0.016

Ethnicity

Han

1580 (84.5)

290 (15.5)

1870

1.00

1.00

Tujia

116 (85.3)

20 (14.7)

136

0.94 (0.58–1.53), 0.803

1.27 (0.62–2.59), 0.509

Miao

76 (82.6)

16 (17.4)

92

1.15 (0.66–1.99), 0.627

0.76 (0.41–1.41), 0.384

Kelao

55 (83.3)

11 (16.7)

66

1.09 (0.56–2.11), 0.799

0.99 (0.54–1.82), 0.974

Other minorities

35 (79.5)

9 (20.5)

44

1.40 (0.67–2.95), 0.374

1.01 (0.44–2.31), 0.981

City (n = 2207)

Zunyi

1369 (85.1)

239 (14.9)

1608

1.00

1.00

Tongren

233 (81.5)

53 (18.5)

286

1.30 (0.94–1.81), 0.114

1.44 (0.95–2.20), 0.088

Bijie

177 (83.1)

36 (16.9)

213

1.17 (0.79–1.71), 0.435

1.10 (0.72–1.68), 0.653

Other cities of GZ

66 (80.5)

16 (19.5)

82

1.39 (0.79–2.44), 0.253

1.13 (0.61–2.09), 0.696

Cities outside GZ

16 (88.9)

2 (11.1)

18

0.72 (0.16–3.13), 0.657

0.91 (0.19–4.30), 0.908

Treatment history

New

1479 (91.1)

144 (8.9)

1623

1.00

1.00

Retreated

383 (65.5)

202 (34.5)

585

5.42 (4.25–6.90), < 0.0001

5.17 (4.02–6.63), < 0.0001

TB type

PTB

1370

1.00

1.00

PTB & EPTB

838

0.65 (0.51–0.83), 0.001

0.73 (0.56–0.95), 0.018

Total

2208

N/A

N/A