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Table 2 Baseline and follow-up anthropometric outcomes, by treatment group

From: Phone and e-mail counselling are effective for weight management in an overweight working population: a randomized controlled trial

  Control group   Phone group    Internet group   
  Baseline Follow-up Baseline Follow-up Change vs. control (95% CI) Baseline Follow-up Change vs. control (95% CI)
Imputed datasets a n = 457   n = 459    n = 458   
Body weight (SD), kg 92.9 (13.6) 91.7 (13.8) 93.4 (14.1) 90.7 (13.7) -1.5*** (-2.2; -0.8) 92.8 (14.3) 91.0 (14.2) -0.6* (-1.3; -0.01)
Completers n = 321   n = 332    n = 329   
Body weight (SD), kg 92.0 (13.2) 91.0 (13.4) 93.5 (14.3) 90.8 (14.0) -1.6*** (-2.2; -1.0) 91.9 (14.2) 89.8 (14.1) -1.1*** (-1.7; -0.5)
≥5% weight loss, No. (%) - 34 (10.6) - 91 (27.4) - - 71 (21.6) -
≥3% weight gain, No. (%) - 26 (8.1) - 20 (6.0) - - 18 (5.5) -
  n = 231   n = 236    n = 235   
Waist circumference (SD), cm 101.5 (9.8) 99.5 (10.0) 102.6 (10.0) 98.6 (10.3) -1.9*** (-2.7; -1.0) 101.5 (10.3) 98.2 (10.2) -1.2** (-2.1; -0.4)
  1. aAll participants except those that became pregnant during the course of the study.* p < 0.05, ** p < 0.01, *** p < 0.001