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Table 1 Characteristics (quantiles and moments) of incidence rates per 100,000, for rates for persons, males and females, and male to female rate ratio

From: A systematic review of the incidence of schizophrenia: the distribution of rates and the influence of sex, urbanicity, migrant status and methodology

  n s (n r ) 10% 25% Median 75% 90% Mean s m h
Persons 55 (170) 7.7 10.2 15.2 22.0 43.0 23.7 30.3 15.9
Males 31 (100) 6.6 11.4 15.0 24.8 34.1 21.8 27.4 16.2
Females 31 (100) 3.0 6.3 10.0 21.8 30.2 21.3 45.1 11.3
Male to female rate ratio 31 (100) 0.9 1.1 1.4 1.8 2.4 1.5 0.6 1.4
  1. n s , number of studies; n r , number of rates; s, standard deviation; m h , harmonic mean of the rates.