Table 2.
Change in Outcomes From Baseline to 12 Months Among BMI Groups (12 Month – Baseline)
| Variable | n | Overall (N=192) |
Overweight (N=34) |
Class I (N=53) |
Class II (N=48) |
Class III (N=57) |
p-valuea |
|---|---|---|---|---|---|---|---|
| Change in obesity measures | |||||||
| Weight change (lbs) | 185 | −4.73 (19.20) | −1.88 (12.61) | −2.06 (14.01) | −5.51 (21.19) | −7.13 (24.37) | 0.136 |
| Weight change (%) | 185 | −1.76 (7.78) | −0.83 (7.62) | −1.05 (6.86) | −2.26 (8.69) | −2.57 (7.98) | 0.205 |
| BMI (kg/m2) | 185 | −0.72 (3.03) | −0.28 (2.04) | −0.33 (2.22) | −0.83 (3.25) | −1.25 (3.87) | 0.086 |
| Waist circumference (inches) | 185 | −1.42 (3.32) | −1.82 (3.42) | −1.41 (2.52) | −1.64 (3.43) | −1.00 (3.84) | 0.853 |
| Change in fitness | |||||||
| % Change in fitness (6 MWT in feet)b | 165 | 5.57 (18.03) | 4.55 (18.05) | 2.52 (18.48) | 8.22 (14.81) | 6.84 (20.02) | 0.643 |
| Fitness (6 MWT in feet) | 165 | 59.89 (228.98) | 62.12 (267.39) | 26.09 (271.52) | 99.83 (192.44) | 56.04 (183.46) | 0.767 |
| Change in blood pressure and serum lipids | |||||||
| Systolic blood pressure | 173 | 2.32 (18.37) | 3.25 (18.97) | 2.33 (17.76) | 5.45 (15.91) | −0.86 (20.37) | 0.231 |
| Diastolic blood pressure | 173 | −0.21 (12.15) | 0.28 (13.21) | 0.60 (11.95) | −0.95 (11.55) | −0.69 (12.44) | 0.897 |
| Total cholesterol | 149 | −3.08 (40.43) | −4.50 (44.65) | −0.26 (39.22) | −6.50 (47.36) | −2.43 (34.49) | 0.917 |
| LDL | 105 | −3.46 (36.44) | −5.71 (35.33) | −6.47 (34.91) | −3.90 (46.48) | 0.41 (33.56) | 0.966 |
| HDL | 149 | −3.22 (16.51) | 0.36 (14.47) | 5.71 (21.79) | 7.03 (12.88) | 0.11 (13.72) | 0.211 |
| Triglycerides | 149 | −8.42 (114.15) | −18.11 (91.29) | 10.52 (113.49) | −35.69 (126.39) | −1.02 (117.59) | 0.334 |
a
P-values from linear regression models adjusting for study (Trial 1, 2, or 3), age, gender, race, and program adherence.
b
6-MWT refers to the 6-Minute Walk Test, which is a measure of fitness calculated as the number of feet that an individual can walk in 6 minutes.