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Table 1 Basic characteristics of cases and controls

From: Functional variations of the TLR4 gene in association with chronic obstructive pulmonary disease and pulmonary tuberculosis

Variables

Control (n = 1727)

COPD (n = 152)

PTB (n = 1601)

t/χ 2 COPD

P COPD

t/χ 2 PTB

P PTB

Age (years)

 Mean(±SD)

55.03(±17.70)

75.97(±8.93)

52.06(±17.71)

24.92

< 0.001a

4.84

< 0.001a

Sex [n(%)]

   

11.60

0.001b

0.01

0.941b

 Male

1272 (73.7)

131 (86.2)

1181 (73.8)

    

 Female

455 (26.3)

21 (13.8)

420 (26.2)

    

Smoking [n(%)]

   

34.88

< 0.001b

88.01

< 0.001b

 Never

1101 (63.8)

60 (39.5)

762 (47.6)

    

 Ever

626 (36.2)

92 (60.5)

839 (52.4)

    

Drinking [n(%)]

   

0.01

0.932b

8.94

0.003b

 Never

1267 (73.4)

112 (73.7)

1246 (77.8)

    

 Ever

460 (26.6)

40 (26.3)

355 (22.2)

    
  1. aStudent’s t-test; bχ2 test