Table 2

Number of deaths and mortality rates by asthma exposure in a Swedish cohort of 2 775 430 individuals

AllNo asthmaAsthma
n65926044548
Person years at risk364.2347.717.1
Mean follow-up time, years13.713.714.6
Crude mortality rate (per 100 000 person years) (95% CI)18.1 (17.6 to 18.5)17.4 (17.0 to 17.8)32.1 (29.5 to 34.9)