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Table 1 Association of significant demographic characteristics among study variables

From: Altered antioxidant enzyme activity with severity and comorbidities of chronic obstructive pulmonary disease (COPD) in South Indian population

Variables

Controls

COPD

Mean ± SEM

(n = 59)

Mean ± SEM

(n = 127)

Age, years

51.02 ± 0.27

60.10 ± 0.31**

Male (n)

38 (64.40)

98 (77.16)

Female (n)

21 (35.59)

29 (22.83)

Weight (kg)

65.32 ± 1.50

61.69 ± 0.32**

Height (cms)

157.12 ± 1.04

158.50 ± 0.26

BMI (kg/m2)

26.43 ± 0.65

24.43 ± 0.20**

Smoking Status

 Ex-smoker (n)

13 (22.03)

50 (39.37)

 current smoker (n)

17 (28.81)

32 (25.19)

 non-smoker (n)

29 (49.15)

45 (35.43

Spirometry parameter

 FEV1, % of predicted

71.20 ± 1.26

36.21 ± 0.40***

 FVC, % of predicted

83.99 ± 1.06

50.15 ± 0.34***

 FEV1/FVC, % of predicted

97.56 ± 0.71

70.41 ± 0.46***

 PaO2 (mmHg)

 

57.51 ± 0.11

 SaO2 (%)

 

90.62 ± 0.19

COPD co-morbidities

 Type 2 diabetes (n)

 

41 (32.28)

 Pulmonary hypertension (n)

 

52 (40.94)

 Cardiovascular disease (n)

 

27 (21.25)

  1. Variables are expressed as Mean ± SEM or number (%), standard error of the mean; Significance of difference to control: *p < 0.05, **p < 0.001, ***p < 0.001. COPD Chronic Obstructive Pulmonary Disease, BMI Body Mass Index, FEV 1 forced expiratory volume in 1 s, FVC force vital capacity, FEV 1 /FVC forced expiratory volume in 1 s/forced vital capacity ratio, PaO2 Partial pressure of oxygen, SaO2 Arterial oxygen saturation, n number
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COPD Research and Practice

ISSN: 2054-9040

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