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Table 1 Approximate incidence* in subjects taking or not taking antidepressants in the baseline year

From: The impact of antidepressant treatment on population health: synthesis of data from two national data sources in Canada

Baseline year Follow-up interview Taking antidepressants Not taking antidepressants
   Approximate incidence* (unweighted proportion) 95% confidence interval Approximate incidence* (unweighted proportion) 95% confidence interval
1994 1996 12.7% (20/172) 6.0 – 19.4 3.4% (277/9055) 2.9 – 4.0
1996 1998 7.8% (21/234) 3.5 – 12.0 3.5% (375/9127) 3.0 – 4.1
1998 2000 12.7% (47/352) 8.6 – 16.8 3.5% (317/8994) 2.9 – 4.0
Average   11.1%   3.5%  
  1. *Proportion of subjects free from a major depressive episode in the year preceding the baseline interview who developed major depression in the year preceding the follow-up interview. These estimates are weighted to account for design effects. The unweighted raw proportions have been placed beside the weighted estimates.