Table 2.

Prevalence of COPD in Participants in Relation to Age, Sex & BMI

Variables	FEV1% N (%)*		P-Value°
	≤ 70 %	> 70 %
Age Groups
≤35	19 (2)	768 (98)
36-55	79 (4)	1910 (96)	<0.001
>55	113 (12)	807 (88)
Sex
Male	174 (6)	2687 (94)	0.158
Female	37 (4)	798 (96)
BMI
<18.5(Under Wt)	11 (9.8)	101 (90.2)
18.5-22.9(Normal)	49 (8.7)	516 (91.3)	0.006
23-24.9(Over Wt)	34 (5.9)	544 (94.1)
>25(Obese)	117 (4.8)	2324 (95.2)

^*FEV1% is the ratio of Forced Expiratory Volume (FEV1) to Forced Vital Capacity (FVC), The figures have been rounded to the nearest zero.

^°Pearson Chi square test.