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Table 3 Survival data for the bipolar disorder patients in the euthymic state

From: Olanzapine is superior to lamotrigine in the prevention of bipolar depression: a naturalistic observational study

  Olanzapine (n = 20) Lamotrigine (n = 26) p value
Time to recurrence    
Mood episode    
Survival, median (95% CI), NE 44a (14.2, 73.8) 0.195
No. of events 7 15
Mania    
Survival, median (95% CI), NE NE  
No. of events 3 0
Depression    
Survival, median (95% CI), NE 44a (14.2, 73.8) 0.033*
No. of events 4 15
  1. Abbreviations: CI confidence interval, NE not evaluable since the treatment groups did not fall below 50% survival.
  2. *p < .05; aMedian estimated time to recurrence (weeks).