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Table 3 Number of deaths, person-years, average annual mortality rates (95% Confidence Interval) for the ECRHS-Italy cohort (1991–2000),and official mortality rates in northern Italy.

From: Incidence of asthma and mortality in a cohort of young adults: a 7-year prospective study

  Number of deaths Person-years Mortality rate *10,000 (95% C.I.) Northern Italy mortality rates *10,000 $
Total 47 42523 11.0 (8.3–14.7) 10.9
Sex     
Men 34 21592 15.7 (11.2–22.0) 14.7
Women 13 20931 6.2 (3.6–10.7) 6.9
  1. $ ISTAT (National Institute of statistics) 1998