Table 3

Change in glucose and waist circumference at 18 months follow-up for participants with and without diabetes

Without diabetes (n = 209)With diabetes (n = 82)P value, between group
Glucose
 Mean fasting glucose at baseline (SD), mg/dL95.8 (11.5)128.8 (51.5)<0.001
 Mean fasting glucose at 18 months (SD), mg/dL100.6 (21.2)124.5 (51.0)<0.001
 Mean change in fasting glucose at 18 months (SE), mg/dL*
  Control6.4 (2.8)2.9 (11.6)0.77
  Intervention3.6 (2.2)−13.9 (11.3)0.13
  Net intervention effect, difference−2.8 (3.5)−16.8 (16.3)0.68
  P value, within group0.430.30
Waist circumference
 Mean waist circumference at baseline (SD), cm114.2 (14.9)124.2 (14.9)<0.001
 Mean waist circumference at 18 months (SD), cm112.6 (17.0)123.4 (18.2)<0.001
 Change in waist circumference (SE), cm*
  Control−0.6 (0.9)0.1 (1.5)0.67
  Intervention−1.9 (0.8)−3.3 (2.0)0.52
  Net intervention effect, difference−1.3 (1.2)−3.4 (2.5)0.53
  P value, within group0.300.18
  • *Longitudinal mixed-effects model–based estimates, adjusted for time-dependent weight, age, sex, site, psychiatric diagnosis, and baseline weight.