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Table 5 Cluster-level analysis of weight management variables and lifestyle advice with imputed outcomes at baseline

From: Cluster randomised trial of a tailored intervention to improve the management of overweight and obesity in primary care in England

  Control (n = 13) Intervention (n = 12) Mean difference
  Baseline (imputed) Follow-up Baseline (imputed) Follow-up Mean (95 % CI) p value
Weight management 8.8 % (8.5 %) 14.7 % (11.9 %) 5.1 % (2.8 %) 13.6 % (6.4 %) 3.7 (−2.5, 9.9) 0.23
Referral to external weight loss services 4.5 % (5.8 %) 4.3 % (3.0 %) 2.8 % (3.0 %) 3.8 % (3.6 %) 0.5 (−2.2, 3.1) 0.73
Internal weight management 4.2 % (4.0 %) 9.9 % (10.1 %) 2.3 % (2.0 %) 9.0 % (7.1 %) 3.3 (−1.7, 8.3) 0.18
Lifestyle assessment 0.0 % (0.0 %) 23.4 % (8.2 %) 0.9 % (2.1 %) 24.3 % (5.8 %) −0.2 (−6.9, 6.5) 0.95
  1. The outcomes here are continuous cluster-summary variables (percentage of patients with the outcome) as opposed to patient-level binary variables. xx.x% (xx.x%) = mean (SD). A mean difference >0 favours the intervention group