TABLE 4

Risk factors for incident adult-onset physician-diagnosed asthma defined by model A

Independent variablesCategoryCohort followed from 1996 to 2006Cohort followed from 2006 to 2016
UnadjustedAdjustedUnadjustedAdjusted
RR(95% CI)RR(95% CI)RR(95% CI)RR(95% CI)
SexMen1111
Women1.23(0.84–1.79)1.18(0.77–1.79)2.07(1.34–3.21)1.99(1.22–3.25)
Family history of asthmaNo1111
Yes1.78(1.17–2.72)1.50(0.93–2.43)2.10(1.36–3.26)1.75(1.05–2.90)
Allergic rhino-conjunctivitisNo1111
Yes2.47(1.65–3.69)2.62(1.69–4.07)2.42(1.58–3.71)2.39(1.48–3.87)
Smoking habitsNonsmokers1111
Ex-smokers1.67(1.06–2.62)1.62(0.99–2.67)0.87(0.58–1.58)1.01(0.59–1.75)
Smokers1.42(0.89–2.26)1.38(0.83–2.29)0.79(0.42–1.47)0.89(0.46–1.69)
Socioeconomic groupProfessionals1111
Non-manual workers1.46(0.45–4.80)1.32(0.40–4.37)0.88(0.37–2.12)0.76(0.31–1.89)
Manual workers1.90(0.60–6.05)1.75(0.55–5.60)0.90(0.38–2.12)0.90(0.38–2.13)

Data are presented as unadjusted and adjusted RR (95% CI) from Poisson regression models. Model A: excluded from population at risk were those who at baseline reported any of physician-diagnosed asthma, ever-asthma, current use of asthma medicine and recurrent wheeze. The adjusted regression models included incident physician-diagnosed asthma as outcome, and all variables presented in the table as independent variables. Bold values indicate p<0.05.