Table 1 Definitions of prevalent, incident and recurrent cardiovascular disease and lung function impairment using a modification of the Global Initiative for Lung Disease (GOLD) criteria for chronic obstructive pulmonary disease
Cardiovascular disease at baseline
    Self-reported myocardial infarction
    Coronary artery bypass graft
    Self-reported hospitalised for a myocardial infarction
    Myocardial infarction on ECG
    Self-reported prior stroke
Cardiovascular disease—incident or recurrent
    New changes on ECG consistent with myocardial infarction
    Definite or probable hospitalisation for myocardial infarction (validated)
    Definite or probable ischemic stroke
    Coronary heart disease death
Modified GOLD stages of lung disease
    GOLD 3 or 4—FEV1/FVC <0.70 and FEV1 <50% predicted
    GOLD 2—FEV1/FVC<0.70 and FEV1 ⩾50 to <80% predicted
    GOLD 1—FEV1/FVC <0.70 and FEV1 ⩾80%
    GOLD 0—presence of respiratory symptoms with no lung function abnormality
    Restricted—FEV1/FVC ⩾0.70 and FVC <80% predicted, and no lung disease
    Normal—Not in any of the above categories
  • FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity.