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Table 4 Changes in Body Weight and associated variables

From: A novel approach to increasing community capacity for weight management a volunteer-delivered programme (ActWELL) initiated within breast screening clinics: a randomised controlled trial

  Intervention Group Comparison group Between group difference; P value    
N Mean (SD) 95% CI N Mean (SD) 95% CI Unadjusted mean (95% CI) P value Adjusted for all SAP variables (95% CI) P value
Changes in anthropometric measures
 Measured body weight (kg)
  Baseline 278 80.9 (13.3)   281 81.9 (12.8)      
  12 months 226 77.8 (12.6)   240 80.2 (12.7)      
  Difference to baseline 225 −2.5 (4.4) −3.1 to −1.9 240 −1.2 (5.0) −1.8 to −0.6 −1.59 (−3.17 to − 0.01) 0.048 −1.29 (−2.15 to − 0.43) 0.003
 Self-reported body weight (kg)
  Baseline 267 79.4 (12.9)   272 80.4 (12.7)      
  12 weeks 253 78.0 (12.4)   228 79.9 (13.5)      
  Difference to baseline 245 −1.5 (3.3) −1.9 to − 1.1 224 −0.7 (3.4) − 1.2 to − 0.3     
  12 months 219 76.9 (12.7)   224 78.9 (12.7)      
  Difference to baseline 210 −2.1 (4.8) −2.8 to −1.5 219 −0.9 (5.5) −1.6 to − 0.1 −1.37 (− 2.97 to 0.23) 0.092 −1.23 (− 2.20 to − 0.25) 0.014
 Mean waist circumference (cm)
  Baseline 279 98.1 (12.5)   281 98.7 (11.7)      
  12 months 226 95.5 (11.7)   239 97.4 (12.0)      
  Difference to baseline 226 −2.3 (6.0) −3.1 to −1.5 239 −1.0 (6.6) −1.8 to −0.2 − 1.20 (− 2.67 to 0.28) 0.110 −1.24 (− 2.38 to − 0.10) 0.033
 BMI (measured)a
  Baseline 279 31.0 (4.7)   281 31.3 (4.3)      
  12 months 226 29.9 (4.6)   240 30.6 (4.3)      
  Difference to baseline 226 −1.0 (1.6) −1.2 to −0.7 240 −0.5 (1.9) −0.7 to − 0.2 0.98 (0.97 to 0.10) 0.048 0.98 (0.97 to 0.99) 0.002
 Percent weight loss at 12 monthsb
   ≥ 5% n (%) 279 76 (27.2%)   281 46 (16.4%)   Odds ratio
2.15 (1.41 to 3.29)
< 0.001 Odds ratio
2.20 (1.41 to 3.43)
< 0.001
  1. alog transformed (data presented as back transformations) b logistic regression allowing for close co-linearity (binary variables)