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Table 1 Demographic features of 45 patients and 45 controls under study

From: Serum interleukin-6 in chronic obstructive pulmonary disease patients and its relation to severity and acute exacerbation

 

Group 1 (n = 45)

Group 2 (n = 45)

P-value

Sig.

Sex

 Male

31 (68.9%)

26 (57.8%)

0.4

NS

 Female

14 (31.1%)

19 (42.2%)

Age

 Range

50–78

51–75

0.5

NS

 Mean ± SD

61.2 ± 7.1

62.1 ± 7.2

Residence

 Rural

18 (40%)

28 (62.2%)

0.06

NS

 Urban

27 (60%)

17 (37.8%)

Exposure to biomass

 Yes

33 (73.3%)

32 (71.1%)

0.9

NS

 No

12 (26.7%)

13 (28.9%)

Smoking

 Smoker

29 (64.4%)

27 (60%)

0.8

NS

 Non-smoker

16 (35.6%)

18 (40%)

Smoking index

 Mean/SD

385.3 (359.2)

228.8 (269.9)

0.05

S

Exacerbation frequency

 Yes

22 (48.9%)

   

 No

23 (51.1%)

   

Respiratory failure

 Yes

18 (40%)

   

 No

27 (60%)

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