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Table 3 Changes in outcome variables at 6 and 12 months

From: Go!: results from a quasi-experimental obesity prevention trial with hospital employees

  Change baseline to 6 months within groups Group Differences Change baseline to 12 months within groups Group Differences
Variables Change (% or scorea; 95 % CI) p Mean difference (% or scorea; 95 % CI) p Change (% or scorea; 95 % CI) p Mean difference (% or scorea; 95 % CI) p
Weight (kgs)a
 Intervention −0.39 % (−0.96, 0.18) 0.17 0.21 % (−1.13, 1.56) 0.76 0.27 % (−0.36, 0.89) 0.40 −0.32 % (−1.80, 1.17) 0.66
 Comparison −0.59 % (−1.69, 0.51) 0.29 0.59 % (−0.65, 1.85) 0.35
BMIa
 Intervention −0.11 % (−0.63, 0.40) 0.67 1.10 % (−0.17, 2.39) 0.09 0.34 % (−0.27, 0.95) 0.27 0.16 % (−1.18, 1.52) 0.81
 Comparison −1.20 % (−2.31, −0.07) 0.04 0.18 % (−1.07, 1.44) 0.78
Waist (cm)a
 Intervention −0.04 % (−0.64, 0.57) 0.90 2.99 % (1.28 to 4.72) 0.001 −0.15 % (−0.85, 0.56) 0.68 0.54 % (−1.06, 2.16) 0.51
 Comparison −2.94 % (−4.42, −1.44) 0.000 −0.68 % (−2.08, 0.73) 0.34
IPAQa
 Intervention 8.29 % (0.71, 16.44) 0.03 −1.71 % (−15.69, 14.59) 0.83 12.41 % (4.09, 21.38) 0.004 22.41 % (6.02, 41.32) 0.006
 Comparison 10.17 % (−3.58, 25.89) 0.15 −8.17 % (−18.72, 3.74) 0.17
GLTEQa
 Intervention 19.30 % (6.80, 33.25) 0.003 −5.57 % (−25.09, 19.03) 0.63 7.93 % (−2.52, 19.50) 0.14 8.28 % (−13.73, 35.91) 0.49
 Comparison 26.34 % (2.04, 56.41) 0.03 −0.33 % (−18.75, 22.27) 0.98
Fruit & vegetable servingsa
 Intervention 5.31 % (−0.38, 11.33) 0.07 −6.46 % (−16.35, 4.60) 0.24 −7.84 % (−13.13, −2.23) 0.007 −11.70 % (−21.76, −0.35) 0.04
 Comparison 12.59 % (2.36, 23.84) 0.02 4.38 % (−6.43, 16.43) 0.44
% calories from fata
 Intervention −1.01 % (−3.38, 1.41) 0.40 −1.71 % (−6.28, 3.08) 0.47 −0.65 % (−3.47, 2.26) 0.64 −0.28 % (−.762, 2.38) 0.28
 Comparison 0.71 % (−3.12, 4.69) 0.72 2.16 % (−2.47, 7.01) 0.36
Fiber (g) dailya
 Intervention 5.97 % (0.05, 12.23) 0.05 −1.71 % (−11.02, 8.57) 0.73 −6.55 % (−11.29, −1.55) 0.01 −11.15 % (−21.29, 0.31) 0.06
 Comparison 7.81 % (−0.70, 17.05) 0.07 5.18 % (−5.44, 16.99) 0.35
Cookies, Cakes, Brownies
 Intervention −0.08 (−0.14, −0.03) 0.003 0.06 (−0.04, 0.16) .22 −0.07 (−0.12, −0.01) 0.02 −0.06 (−0.18, 0.07) .38
 Comparison −0.14 (−0.23, −0.06) 0.0007    −0.01 (−0.12, 0.01) 0.86   
Muffins, donuts
 Intervention −0.05 (−0.09, −0.02) 0.006 −0.07 (−0.112, 0.02) .009 −0.08 (−0.12, −0.05) <0.0001 −0.08 (−0.12, −0.03) .002
 Comparison 0.01 (−0.02, 0.05) 0.45    −0.01 (−0.04, 0.02) .59   
Ice cream
 Intervention 0.01 (−0.04, 0.01) 0.32 −0.02 (−0.06, 0.03) 0.45 −0.02 (−0.04, 0.00) 0.04 −0.02 (−0.07, 0.03) 0.41
 Comparison 0.01 (−0.03, 0.05) 0.78    0.00 (−0.05, 0.04) 0.89   
Sugar sweetened beverages
 Intervention 0.01 (−0.03, 0.01) .54 0.02 (−0.02, 0.05) 0.29 −0.02 (−0.04, 0.00) 0.02 −0.01 (−0.04, 0.01) 0.38
 Comparison −0.02 (−0.05, 0.00) .08    −0.01 (−0.03, 0.01) 0.32   
Knowledge
 Intervention 0.36 (0.22, 0.50) 0.000 0.27 (−0.01, 0.55) 0.06 0.38 (0.22, 0.54) 0.000 0.23 (−0.09, 0.54) 0.16
 Comparison 0.09 (−0.15, 0.34) 0.45 0.15 (−0.12, 0.43) 0.27
Information
 Intervention 0.73 (0.57, 0.90) 0.000 0.40 (0.08, 0.72) 0.02 0.92 (0.70, 1.14) 0.000 0.61 (0.24, 0.99) 0.002
 Comparison 0.33 (0.05, 0.62) 0.02 0.31 (0.02, 0.60) 0.04
Employer commitment
 Intervention 0.11 (0.03, 0.19) 0.006 0.10 (−0.05, 0.26) 0.19 0.14 (0.06, 0.23) 0.002 0.19 (0.03, 0.35) 0.02
 Comparison 0.01 (−0.14,0.15) 0.92 −0.05 (−0.17, 0.08) 0.46
Coworker social support
 Intervention −0.03 (−0.53, 0.47) 0.92 0.09 (−0.87, 1.04) 0.86 −0.23 (−0.75, 0.29) 0.37 0.16 (−0.88, 1.21) 0.75
 Comparison −0.11 (−0.97, 0.75) 0.80 −0.39 (−1.30, 0.51) 0.39
Health discussions with coworkers
 Intervention 0.33 (−0.02, 0.68) 0.06 0.54 (0.07, 1.01) 0.03 0.17 (0.00, 0.34) 0.05 0.56 (0.15, 0.97) 0.008
 Comparison −0.21 (−0.58, 0.17) 0.28 −0.39 (−0.78, −0.01) 0.05
  1. Note: Difference scores are based on means adjusted for age, sex, education, income, smoking status, job category, job flexibility, weight loss goal, and taking medication for depression, diabetes, hypertension, or hyperlipidemia
  2. aVariables in which p values are based upon analyses using natural log transformations