Table 2

Arm-based network meta-analysis comparing the effect on weight loss, FBG, and diabetes incidence between intervention and control arms, by intervention strategy

ComparisonWeight* (kg)FBG (mmol/L)Diabetes incidence
nChange [95% CI]nChange [95% CI]nOR [95% CI]
Group education by COM vs. control26−2.1 [–3.1, −1.0]9−0.04 [–0.17, 0.10]40.71 [0.37, 1.35]
Group education by HP vs. control30−1.1 [–2.3, 0.1]22−0.09 [–0.19, 0.01]110.67 [0.49, 0.92]
Individual counseling by HP vs. control3−0.3 [–3.0, 2.4]2−0.19 [–0.43, 0.04]10.71 [0.37, 1.36]
Education/counseling by TEC vs. control8−0.14 [–2.8, 2.5]1−0.08 [–0.40, 0.23]10.21 [0.1, 4.27]
  • This was a multiple treatment comparison meta-analysis where arms across studies were grouped according to the intervention employed, and a pooled effect for each group, compared with control arms, was estimated. n = number of intervention arms. Mean (SD) duration of active intervention: 23 (22) weeks; range 1–130. Average (SD) number of sessions offered: 18 (25); range 1–58. COM, community member; HP, health care professional; TEC, technology.

  • *61 studies including 67 interventions arms and 25 control arms.

  • †29 studies including 34 interventions arms and 17 control arms.

  • ‡14 studies including 17 interventions arms and 7 control arms.