Skip to main content

Table 1 Demographic and clinical characteristics between healthy volunteers and patients according to BMI

From: The effect of excess weight on circulating inflammatory cytokines in drug-naïve first-episode psychosis individuals

  Entire simple
N = 150
Normal-weight
Control group
n = 45
Normal-weight
Patient group
n = 53
Overweight
Control group
n = 30
Overweight
Patient group
n = 22
 
N (%) n (%) n (%) n (%) n (%) Statistics
Sex (female) 76 (50.7) 23 (51.1) 31 (58.5) 13 (43.3) 9 (40.9) Χ2 = 0.53; p = 0.464a
Χ2 = 0.03 p = 0.861b
Cannabis users 51 (34.0) 12 (26.7) 24 (45.9) 14 (46.7) 1 (4.6) Χ2 = 3.63; p = 0.057a
Χ2 = 10.97; p = 0.001b
Tobacco usersc 76 (51.4) 22 (48.9) 27 (51.9) 19 (63.3) 8 (38.1) Χ2 = 0.09; p = 0.766a
Χ2 = 3.16; p = 0.076b
  Mean (sd) Mean (sd) Mean (sd) Mean (sd) Mean (sd) Statistics
Age at onset (years) 29.2 (7.15) 28.2 (6.09) 27.7 (7.33) 29.6 (6.53) 34.5 (7.46) t = − 0.33; p = 0.739a
t = 2.49; p = 0.017b
BMI at baseline (kg/m2) 23.8 (4.59) 22.0 (1.77) 20.3 (2.28) 29.6 (3.83) 28.2 (2.28) t = − 4.06; p = 0.000a
t = − 1.50; p = 0.139b
  1. aComparison between patients and healthy volunteers in the normal-weight group
  2. bComparison between patients and healthy volunteers in the overweight group
  3. cn = 148