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Table 1 Characteristics of late-life schizophrenia (LLS) and healthy older adults

From: Elevated activity of superoxide dismutase in male late-life schizophrenia and its correlation with clinical symptoms and cognitive deficits

  LLS (n = 32) Controls (n = 28) t or χ 2 p
Age (years) 63.63 ± 2.87 63.96 ± 3.16 −.44 .66
Education (years) 10.0 ± 2.81 7.89 ± 3.48 2.56 .013
BMI (kg/m2) 23.86 ± 6.55 26.08 ± 2.90 −1.55 .23
Marital status    26.88 <.001
Single 50% 0   
Married 25% 89.3%   
Divorced or widowed 25% 10.7%   
Cigarette smoking 68.8% 0 30.40 <.001
Age of onset (years) 27.06 ± 6.11   
Antipsychotic    
Atypical 78.1%   
Typical 21.9%   
Antipsychotic dose (mg/day, chlorpromazine equivalents) 320.35 ± 159.27   
PANSS    
Total score 65.87 ± 10.46   
Positive symptoms subscore 13.71 ± 5.15   
Negative symptoms subscore 24.16 ± 5.98   
General psychopathology subscore 28 ± 4.66   
  1. PANSS the Positive and Negative Syndrome Scale