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Table 3 Conditional probability of response given different amounts of weight gain for all patients and by medication

From: Acute weight gain, gender, and therapeutic response to antipsychotics in the treatment of patients with schizophrenia

  Olanzapinea Haloperidolb
  N = 1283 N = 622
Weight change Did not respond Respondedc P(R| W) Did not respond Respondedc P(R| W)
  N % N %   N % N %  
Lost weight (< 0%) 210 16.4% 187 14.6% .47 176 28.3% 166 26.7% .49
Gained 0 to < 3% 118 9.2% 234 18.3% .67 88 14.2% 83 13.3% .49
Gained 3 to < 7% 111 8.7% 248 19.3% .69 39 6.3% 51 8.2% .57
Gained ≥ 7% 43 3.4% 132 10.3% .75 5 0.8% 14 2.3% .74
  1. Note. Response was defined as a greater than 20% decrease in BPRS Core Symptoms
  2. a Mantel-Haenszel test of linear by linear association, χ 2(1, N = 1283) = 52.3, p < 0.001.
  3. b Mantel-Haenszel test of linear by linear association, χ 2(1, N = 622) = 4.1, p = 0.044.
  4. cProbability of response given level of weight change.