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Table 6 Between-group difference in weight, BMI, waist circumference and body composition at baseline and post-program

From: Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial

   Intervention group Comparison group  
N Mean (SD) N Mean (SD) Mean diff 95% CI P
Weight (kg) Baseline 43 90.3 (21) 39 88.6 (24) 1.7 −8.6, 12 0.7
Post-program 32 91.8 (21.3) 37 88.3 (25) 0.6 −2.2, 1.0 0.4
BMI (kg/m2) Baseline 43 29.8 (5.8) 39 29.3 (6.3) 0.4 −2.2, 3.1 0.7
Post-program 32 30.3 (5.8) 37 29.3 (6.7) 0.1 0.6, −0.4 0.6
Waist circumference (cm) Baseline 41 105 (16) 37 104 (18) 0.6 7, −8 0.8
Post-program 33 107 (15) 34 103 (18) 1.3 3, −0.7 0.19
Percent fat Baseline 43 30.5 (8.1) 39 29.3 (10.6) 1.1 3, −5 0.5
Post-program 32 30.7 (8.5) 37 29.7 (11.1) 0.0 0.9, −0.8 0.9
Fat mass (kg) Baseline 43 28.1 (10.8) 39 27.5 (15.5) 0.6 5, −6 0.8
Post-program 32 28.8 (11.2) 37 27.9 (16.1) 0.2 1.3, −0.8 0.6
Muscle mass (kg) Baseline 43 59.1 (14.0) 39 58.0 (12.7) 1.0 4, −6 0.7
Post-program 32 59.8 (13.2) 37 57.4 (12.8) 0.3 1.2, −0.4 0.3
Fat-free mass (kg) Baseline 43 62.2 (14.7) 39 61.0 (13.2) 1.2 4, −7 0.7
Post-program 32 62.9 (13.8) 37 60.4 (13.4) 0.2 1.1, −0.6 0.5
Visceral fat (kg) Baseline 41 9.7 (4.8) 33 8.3 (5.0) 1.4 0.8, −3 0.2
Post-program 30 9.4 (4.5) 36 9.2 (6.4) 0.1 0.6, −0.3 0.5
  1. Presented values are the mean ± SD. BMI, body mass index. CI, confidence interval