Table 2

Means and standard deviations for outcome measures by time and group based on an intent-to-treat analyses
Outcome Time Analysisa
Baseline 6-Months 18-Months Time x Group (F) Effect sizeb
Total Met Minutes/wk
   Intervention 1854.08 (2174.67) 2351.24 (2537.69) 3153.67 (3393.64) 2.59 .016
   Control 2278.56 (2820.37) 2265.15 (2680.87) 3272.10 (3874.99)
Walking Met Minutes/wk
   Intervention 996.07 (1116.59) 1195.54 (1277.60) 1265.14 (1352.25) 5.46** .040
   Control 1242.45 (1432.69) 1050.49 (1344.35) 1327.70 (1641.78)
Moderate Met Minutes/wk
   Intervention 440.69 (1091.22) 531.72 (1150.98) 861.61 (1526.16) 1.18 .008
   Control 576.15 (1159.23) 514.02 (968.80) 1086.24 (1670.45)
Vigorous Met Minutes p/wk
   Intervention 590.05 (1294.38) 736.72 (1410.47) 1060.74 (2119.54) 1.01 .007
   Control 746.55 (1672.04) 744.78 (1471.29) 972.04 (2023.38)
Stage of Change
   Intervention 3.22 (1.36) 3.63 (1.35) 3.19 (1.61) 4.80** .033
   Control 3.47 (1.40) 3.47 (1.45) 2.87 (1.68)
BMI
   Intervention 33. 66 (5.12) 33.53 (4.58) 33.68 (4.77) 4.11* .028
   Control 33.37 (4.47) 33.43 (5.07) 34.04 (4.88)
Bodyweight
   Intervention 93.64 (15.93) 93.02 (15.55) 94.12 (15.66) 1.95 .013
   Control 91.38 (16.88) 91.51 (17.41) 92.75 (17.37)
SBP (mmHg)
   Intervention 133.12 (16.53) 130.25 (15.78) 128.98 (14.43) 1.71 .012
   Control 132.41 (17.33) 131.81 (17.45) 129.96 (17.75)
DBP (mmHg)
   Intervention 83.42 (9.63) 81.52 (8.57) 82.40 (9.03) 5.55** .038
  Control 81.92 (9.27) 82.70 (8.98) 82.81 (8.13)
Cholesterol (mmol.l-1)
   Intervention 5.51 (1.01) 5.37 (1.05) 5.36 (1.03) 5.84** .042
  Control 5.39 (0.93) 5.37 (1.03) 5.52 (1.03)
HDL (mmol.l-1)
   Intervention 1.46 (0.38) 1.41 (0.39) 1.33 (0.35) 0.02 .000
  Control 1.52 (0.43) 1.47 (0.43) 1.39 (0.41)
LDL (mmol.l-1)
   Intervention 2.96 (1.14) 3.06 (0.99) 3.28 (1.05) 1.29 .010
  Control 3.01 (1.08) 3.27 (0.97) 3.48 (0.94)
Triglycerides (mmol.l-1)
   Intervention 1.96 (0.79) 1.77 (1.25) 1.65 (1.01) 0.46 .004
  Control 1.77 (1.02) 1.61 (0.79) 1.55 (0.78)
Fat Intake (% fat intake per day)
   Intervention 23.87 (7.67) 22.93 (7.03) 22.97 (7.26) 4.41* .028
  Control 23.89 (7.70) 20.97 (6.46) 20.41 (5.96)
Fruit & Vegetable Intake (portions per day)
   Intervention 6.31 (4.02) 7.33 (4.25) 6.30 (3.76) 0.78 .005
  Control 6.94 (4.48) 7.58 (4.85) 6.23 (3.58)

Note. Figures in parentheses are standard errors. aF-ratio representing interaction effect of time by group on dependent variable; bPartial eta-squared (η2p). BMI = Body mass index; SBP = Systolic blood pressure; DBP = Diastolic blood pressure; HDL = High density lipoproteins; LDL = Low density lipoproteins.

* p < .05.

** p < .01.

Hardcastle et al.

Hardcastle et al. International Journal of Behavioral Nutrition and Physical Activity 2013 10:40   doi:10.1186/1479-5868-10-40

Open Data