Table 2—

Risk of type 2 diabetes from 1988 to 1996 according to COPD or asthma status

Person-yearsIncident diabetesAge-adjusted RR (95% CI)Age- and BMI-adjusted RR (95% CI)Multivariate RR (95% CI)*
COPD cohort (n = 97,245)
    No COPD726,8402,9401.0 (reference)1.0 (reference)1.0 (reference)
    COPD2,505191.8 (1.1–2.8)1.9 (1.2–3.0)1.8 (1.1–2.8)
Asthma cohort (n = 94,511)
    No asthma693,0662,7581.0 (reference)1.0 (reference)1.0 (reference)
    Asthma15,389691.1 (0.9–1.5)0.9 (0.7–1.2)1.0 (0.8–1.2)
  • *

    * Adjusted for age, BMI (in four categories), sedentary (weekly frequency of moderate-to-vigorous exercise <0.5 h), smoking status (never smoked, former smoker, current smoker [<25 cigarettes/day], or current smoker [≥25 cigarettes/day]), daily alcohol intake, and a dietary score variable.