Research Article
Examining a Ripple Effect: Do Spouses’ Behavior Changes Predict Each Other’s Weight Loss?
Table 2
Weight and behavior changes by treatment group, mean (SD).
| | Variable | Overall | ALONE | TOGETHER | |
| | Participant | | Weight (kg) | | | | | | Baseline | 101.73 (22.55) | 101.64 (22.15) | 101.83 (23.14) | .96 | | Δ Baseline to 6 months | −9.13 (8.01) | −8.22 (8.40) | −10.06 (7.56) | .19 | | Energy intake (kcal/day) | | | | | | Baseline | 2010.12 (846.22) | 1968.69 (776.79) | 2054.11 (918.41) | .56 | | Δ Baseline to 6 months | −546.62 (748.52) | −378.49 (666.35) | −690.72 (789.95) | .033 | | Fat intake (% kcal/day) | | | | | | Baseline | 39.24 (7.61) | 38.75 (7.03) | 39.77 (8.21) | .44 | | Δ Baseline to 6 months | −5.82 (9.32) | −3.51 (6.85) | −7.74 (10.64) | .014 | | Physical activity (minutes/week) | | | | | | Baseline | 57.58 (149.57) | 44.56 (146.79) | 71.41 (152.41) | .31 | | Δ Baseline to 6 months | 47.81 (239.76) | 48.73 (235.95) | 46.94 (245.25) | .97 |
| | Spouse | | Weight (kg) | | | | | | Baseline | 97.80 (21.02) | 99.01 (19.70) | 96.51 (22.43) | .50 | | Δ Baseline to 6 months | −7.37 (6.84) | −3.77 (5.27) | −10.91 (6.35) | <.001 | | Energy intake (kcal/day) | | | | | | Baseline | 1982.60 (984.10) | 2032.06 (1018.37) | 1930.05 (951.53) | .55 | | Δ Baseline to 6 months | −396.01 (893.61) | −319.14 (1044.07) | −458.30 (753.95) | .43 | | Fat intake (% kcal/day) | | | | | | Baseline | 38.33 (7.71) | 39.05 (6.58) | 37.56 (8.74) | .27 | | Δ Baseline to 6 months | −2.74 (8.47) | −0.32 (7.65) | −4.71 (8.65) | .007 | | Physical activity (minutes/week) | | | | | | Baseline | 61.27 (147.06) | 44.74 (107.82) | 78.83 (178.88) | .19 | | Δ Baseline to 6 months | 32.77 (204.85) | 21.75 (222.35) | 42.50 (189.42) | .59 |
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