Table 2.
Variable | 16-Week Follow-Up (n = 22) | Change From Baseline (n = 22) | P Valuea | ||
---|---|---|---|---|---|
| |||||
Mean (SD) | Median (IQR) | Mean (SD) | Median (IQR) | ||
Body weight | |||||
BMI, kg/m² | 35.0 (6.1) | 34.6 (4.6) | −0.87 (2.0) | −0.49 (2.3) | .05 |
Weight, lb | 203.7 (40.2) | 194.6 (32.4) | −5.15 (12.0) | −3.00 (12.4) | .05 |
Weight, kg | 92.4 (18.2) | 88.3 (14.7) | −2.34 (5.5) | −1.36 (5.6) | .05 |
Weight change, % | NA (baseline) | −2.66 (5.8) | −1.40 (7.3) | .04 | |
Health behaviors | |||||
Dietary fat, % kcal | 39.8 (8.7) | 39.1 (12.7) | −1.2 (12.4) | 0.8 (9.7) | .65 |
Total physical activity, METs | 26.8 (13.8) | 25.6 (16.9) | 5.5 (9.2) | 3.5 (17.1) | .01 |
Moderately vigorous recreation, METs | 12.5 (11.0) | 9.8 (11.1) | 4.2 (7.4) | 4.0 (7.9) | .01 |
Psychosocial variables | |||||
Self-efficacy — diet (range, 1-5) | |||||
Sticking to low-salt, low-fat foods | 3.9 (0.8) | 4.1 (1.2) | −0.2 (0.9) | −0.3 (1.2) | .35 |
Reducing calories | 4.2 (0.7) | 4.2 (0.8) | −.08 (1.1) | −0.1 (0.8) | .72 |
Reducing salt | 4.3 (0.8) | 4.6 (1.2) | .08 (1.3) | 0 (0.8) | .77 |
Reducing fat | 4.1 (1.2) | 4.3 (1.3) | −0 (1.3) | 0 (1.0) | .95 |
Self-efficacy — physical activity (range, 1-5) | |||||
Sticking to exercise program | 3.8 (0.86) | 4.0 (1.25) | −0.3 (0.93) | −0.2 (1.0) | .19 |
Making time for physical activity | 3.6 (0.87) | 3.9 (1.50) | −0.3 (0.96) | −0.2 (1.0) | .19 |
Social support for eating habits — family (range, 5-25) | |||||
Encouragement | 17.0 (5.8) | 17.5 (9.0) | 4.4 (6.2) | 3.5 (12.0) | <.001 |
Discouragement | 12.6 (5.6) | 11.5 (9.0) | 0 (9.1) | 0 (13.0) | .99 |
Social support for eating habits — friends (range, 5-25) | |||||
Encouragement | 14.3 (5.8) | 15.0 (7.0) | 3.50 (5.7) | 3.5 (7.0) | <.001 |
Discouragement | 13.0 (5.9) | 14.0 (12.0) | −1.05 (6.8) | −1.0 (7.0) | .47 |
Social support for physical activity — family | |||||
Family participation (range, 10-50) | 26.8 (10.2) | 26.7 (16.7) | 4.8 (9.4) | 5.0 (7.8) | .02 |
Family rewards and punishments (range, 3-15) | 4.4 (2.0) | 4.0 (2.0) | .36 (2.1) | 0 (1.0) | .42 |
Social support for physical activity — friends (range, 10-50) | |||||
Friend participation | 23.3 (9.9) | 21.1 (15.6) | 1.7 (12.2) | 2.8 (15.6) | .51 |
Abbreviations: SD, standard deviation; IQR, interquartile range; BMI, body mass index; NA, not applicable; METs, metabolic equivalents.
Calculated from 1-sample t test.