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Table 1 Demographic and clinical charateristics of the 100 patients with schizophrenia according to good versus poor response to antipsychotics (May and Denker classification).

From: Excess of transmission of the G allele of the -1438A/G polymorphism of the 5-HT2Areceptor gene in patients with schizophrenia responsive to antipsychotics

Clinical variables Poor responders (N = 65) Good responders (N = 38) p
Men (%) 77 87 0.445
Age at interview (mean ± sd)* 32.83 ± 7.89 31.33 ± 7.21 0.368
Age at onset (mean ± sd)* 21.66 ± 5.02 21.03 ± 3.45 0.464
Illness duration (mean ± sd) 11.17 ± 8.16 10.29 ± 6.78 0.554
SAPS scores (mean ± sd) 5.14 ± 3.75 1.35 ± 2.84 < 0.001
SANS scores (mean ± sd) 12.11 ± 4.62 9.02 ± 4.29 < 0.001
Extra-pyramidal scores (mean ± sd) 2.86 ± 3.63 0.92 ± 1.55 < 0.001
  1. * years