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Table 3 Moderating effects of key baseline characteristics on weight loss (primary outcome) at 6 months (n = 285)a

From: The community-based prevention of diabetes (ComPoD) study: a randomised, waiting list controlled trial of a voluntary sector-led diabetes prevention programme

 Between group differenceb
Mean (95% CI)
Interaction term
p value
Site0.829
 Exeter (n = 151)−1.77 (−3.07 to − 0.46)
 Birmingham (n = 134)−1.59 (−2.71 to − 0.48)
Gender0.508
 Male (n = 124)−1.87 (−3.43 to −0.31)
 Female (n = 161)−1.43 (−2.40 to −0.45)
Age (yrs)0.501
 <55 (n = 66)−0.75 (−2.92 to 1.42)
 55–65 (n = 83)−1.87 (−3.39 to − 0.36)
 65–75 (n = 136)−2.16 (− 3.30 to − 1.02)
Baseline BMI (kg/m2)0.101
 23.0–29.9 (n = 118)−0.79 (− 1.91 to 0.34)
 30.0–36.9 (n = 130)−1.99 (−3.36 to − 0.63)
 37.0–45.0 (n = 37)−2.67 (−6.07 to 0.72)
Ethnicity0.562
 White British (n = 211)−2.03 (−3.09 to −0.96)
 Other (n = 74)−1.10 (−2.65 to 0.45)
Deprivation0.643
 Low (≤ England median IMD score) (n = 116)−1.97 (−3.29 to −0.65)
 High (> England median IMD score) (n = 169)−1.52 (−2.71 to −0.33)
  1. abased on intention-to-treat completers
  2. bAdjusted for baseline outcome value, site, age, gender and baseline BMI