TABLE 2

Mean body mass index (BMI) in various subgroups

Mean BMIp-value
All26.67
Men26.830.019
Women26.52
Never-smokers26.780.647+
Former smokers26.85
Current smokers26.11<0.001§
Chronic productive cough#26.69ns
Wheeze most days a week#27.97<0.001
mMRC dyspnoea score 2–4#28.21<0.001
Urban living26.43<0.001ƒ
Rural living27.49
Asthma27.29<0.001
COPD25.83<0.001
Coronary artery disease#27.210.002
Heart failure#27.950.029
Arrhythmia#26.72ns
Hypertension#27.83<0.001
Claudication#27.00ns
Diabetes#28.74<0.001
Any inhalation steroids#27.29<0.001
Any oral steroids#26.90ns
Professionals and executives26.15<0.001ƒ
Assistant nonmanual employees26.63
Manual workers in industry26.83
Manual workers in service27.02
Self-employed nonprofessionals26.68
Other26.91
  • mMRC: modified Medical Research Council; COPD: chronic obstructive pulmonary disease; ns: nonsignificant. #: versus subjects not having the condition/treatment; : physician's diagnosis and/or own esteem; +: versus former smokers; §: versus never-smokers and former smokers; ƒ: between groups.