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Table 3 Stratified analysis on the association between cigarette smoking and tuberculosis by selected factors

From: Review of cigarette smoking and tuberculosis in China: intervention is needed for smoking cessation among tuberculosis patients

Stratified variables

Smoking

Case(n = 613) n(%)

Control(n = 1226) n(%)

aOR(95% CI)

Gender

    

   Men

Never

125(27.3)

366(40.0)

Ref.

 

Ever

333(72.7)

550(60.0)

1.93(1.50–2.48)

   Women

Never

153(98.7)

307(99.0)

Ref.

 

Ever

2(1.3)

3(1.0)

2.06(0.30–14.28)

Age (years)

    

   < 56

Never

148(54.8)

310(56.9)

Ref.

 

Ever

122(45.2)

235(43.1)

1.28(0.87–1.89)

   ≥ 56

Never

130(37.9)

363(53.3)

Ref.

 

Ever

213(62.1)

318(46.7)

2.56(1.84–3.56)

   Education (years)

    

   < 6

Never

142(46.0)

385(57.0)

Ref.

 

Ever

167(54.0)

290(43.0)

2.23(1.56–3.17)

   ≥ 6

Never

136(44.7)

288(52.3)

Ref.

 

Ever

168(55.3)

263(47.7)

1.68(1.18–2.38)

Alcohol drinking

    

   Never

Never

255(56.7)

560(66.7)

Ref.

 

Ever

195(43.3)

279(33.3)

1.78(1.33–2.38)

   Ever

Never

23(14.1)

113(29.2)

Ref.

 

Ever

140(85.9)

274(70.8)

2.45(1.48–4.06)

  1. †aOR: adjusted odds ratio, adjusting for age, gender and alcohol drinking history where appropriate