Table 2
Number of deaths and mortality rates by asthma exposure in a Swedish cohort of 2 775 430 individuals
All
No asthma
Asthma
n
6592
6044
548
Person years at risk
364.2
347.7
17.1
Mean follow-up time, years
13.7
13.7
14.6
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)