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Table 3 Demographic variables of subjects

From: Prevalence of gastro-oesophageal reflux disease symptoms and reflux-associated respiratory symptoms in asthma

 

Control

(n = 202)

Asthmatic

(n = 202)

P value

Age, yrs mean (SD)

32.8 (10.2)

34.9 (11.6)

0.057*

Males, no (%)

86 (44%)

89 (44%)

0.841†

BMI, kg/m2 mean (SD)

22.8 (2.84)

22.1 (3.03)

0.020*

Current smokers (%)

3.4

12.4

0.001‡

Current drinkers (%)

7.9

14.8

<0.001‡

  1. * student t-test † Fisher exact test ‡ Chi squared test