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Characteristics of the control group and COPD cases.
| Cases N=40 | Controls N=35 | |
|---|---|---|
| Age (years) | 40.88 (SD±11.12) | 41.9 (SD±11.7) |
| Sex | Male=23, Female=17 | Male=21, Female=14 |
| BMI | 24.96 Kg/m2 (SD± 5.65) | 25.19 Kg/m2 (SD± 5.54) |
| Disease stage | Moderate COPD = 30 (75%) Severe = 10 (25%) | - |
