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Table 3 Change in body weight and BMI at 12-weeks

From: Feasibility, acceptability and potential effectiveness of a mobile health (mHealth) weight management programme for New Zealand adults

  Intention to treat analysis Completers only analysis
n = 53 n = 36
Mean (SD) Mean (SD)
Baseline 12 weeks Change from baseline p-value* Baseline 12 weeks Change from baseline p-value*
Body weight (kg) 100.9 (21.3) 99.9 (21.9) -1.0 (3.1) 0.024 100.9 (21.3) 98.3 (22.5) -1.4 (3.6) 0.023
BMI (kg/m2) 35.7 (6.8) 35.4 (7.1) -0.3 (1.1) 0.026 35.7 (6.8) 34.9 (7.4) -0.5 (1.3) 0.025
  Median (range) Median (range)
Baseline 12 weeks Change from baseline p-value Baseline 12 weeks Change from baseline p-value
Body weight (kg) 97.9 (59.8, 165.0) 92.0 (60.4, 163.7) 0.0 (-13.1, 3.7) 0.066 97.9 (59.8, 165.0) 91.0 (60.4, 163.7) -0.6 (-13.1, 3.65) 0.066
BMI (kg/m2) 34.6 (26.4, 56.8) 34.1 (25.4, 56.9) 0.0 (-4.6, 1.5) 0.07 34.6 (26.4, 56.8) 34.0 (25.4, 56.9) -0.2 (-4.6, 1.5) 0.070
  1. *Paired t-test on the mean (parametric).
  2. Wilcoxon signed rank test on the median (non-parametric).