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Table 5 Comparison of a subgroup of our outpatients who were followed-up for a full 20-year period with an earlier longitudinal study in Stockholm [4, 5]

From: The occurrence and nature of early signs of schizophrenia and psychotic mood disorders among former child and adolescent psychiatric patients followed into adulthood

  The earlier Stockholm study (n = 2.164) The subgroup of our present patients (n = 608)  
  Number Percentage Number Percentage p-value*
Males 1,417 65.5 325 53.5 p < 0.001
Females 747 34.5 283 46.5 p < 0.001
Age at the end of the follow up period
20–31.5 years 1415 65.4 236 38.8 p < 0.001
Older than 31.5 years 749 34.6 372 61.2 p < 0.001
Schizophrenia and or bipolar disorder 30 1.39 17 2.80 n.s.
Schizophrenia 21 0.97 11 1.81 n.s.
Bipolar disorder 9 0.42 6 0.99 n.s.
  1. Note: * Fisher Exact Analysis: Two-sided p-values for p(O> = E|O< = E) (the sum of small p's), n.s. = not significant