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Table 1 Characteristics of subjects with and without obesity

From: Dietary patterns are associated with obesity in Japanese patients with schizophrenia

  Subjects with obesitya Subjects without obesityb p valuec
Number of subjects 61 277  
Age 40.7 ± 12.1 44.7 ± 13.3 <0.05
BMI 34.0 ± 3.4 23.6 ± 3.3 <0.001
Male (%) 29 (47.5) 141 (50.9) 0.635
Dietary intake    
Energy (kcal) 1807 ± 1036 1775 ± 778 0.780
Protein (g/1000 kcal) 34.7 ± 9.4 37.1 ± 7.7 <0.05
Carbohydrate (g/1000 kcal) 142 ± 27 141 ± 21 0.752
Fat (g/1000 kcal) 27.1 ± 8.1 28.0 ± 7.1 0.392
Dietary fibre (g/1000 kcal) 5.18 ± 2.38 6.20 ± 2.60 <0.01
Alcohol (g/1000 kcal) 4.35 ± 10.06 2.89 ± 8.14 0.294
n-3 polyunsaturated fatty acids (g/1000 kcal) 1.30 ± 0.54 1.42 ± 0.49 0.091
n-6 polyunsaturated fatty acids (g/1000 kcal) 5.19 ± 1.84 5.47 ± 1.53 0.218
Folate (μg/1000 kcal) 139 ± 74 162 ± 82 <0.05
Riboflavin (Vitamin B2) (mg/1000 kcal) 0.66 ± 0.25 0.67 ± 0.21 0.559
Pyridoxine (Vitamin B6) (mg/1000 kcal) 0.55 ± 0.19 0.61 ± 0.19 <0.05
Cobalamin (Vitamin B12) (μg/1000 kcal) 4.40 ± 2.80 4.95 ± 2.76 0.165
Ascorbic acid (Vitamin C) (mg/1000 kcal) 41.5 ± 30.3 51.8 ± 33.0 <0.05
  1. Abbreviation: BMI body mass index.
  2. aSubjects with BMI ≥ 30.
  3. bSubjects with BMI < 30.
  4. cFor continuous variables, non-paired t-tests were used; for categorical variables, chi-square tests were used.