Table 2.
Comparison of 6- and 12-Month Changes in Outcomes Between Intervention and Usual Care Groups
| Randomization Group | ||||
|---|---|---|---|---|
| Outcomes | In Person | Telephone | Usual Care | P of Overall Group Effect |
| Measured weight (kg) | ||||
| Baseline* | 88.1 (81.6 to 94.5) | 84.3 (79.0 to 89.7) | 90.4 (83.2 to 97.6) | .39 |
| 6-month change† | −5.6 (−7.1 to −4.1) | −4.8 (−6.5 to −3.1) | −1.7 (−3.2 to −0.3) | .001 |
| % change‡ | −6.4 | −5.4 | −2.0 | |
| Intervention v usual care | P = .001 | P = .009 | ||
| In-person v telephone | P = .46 | |||
| Waist circumference (cm) | ||||
| Baseline* | 101.3 (96.8 to 105.9) | 98.3 (94.4 to 102.2) | 99.4 (93.9 to 104.8) | .64 |
| 6-month change† | −7.5 (−9.7 to −5.3) | −7.2 (−9.6 to −4.8) | −2.6 (−4.7 to −0.5) | .002 |
| Intervention v usual care | P = .002 | P = .005 | ||
| In-person v telephone | P = .87 | |||
| Hip circumference (cm) | ||||
| Baseline* | 118.2 (113.5 to 122.9) | 115.3 (111.2 to 119.4) | 118.4 (112.6 to 124.2) | .60 |
| 6-month change† | −6.9 (−8.5 to −5.2) | −6.1 (−8.0 to −4.3) | −3.1 (−4.7 to −1.5) | .004 |
| Intervention v usual care | P = .002 | P = .01 | ||
| In-person v telephone | P = .55 | |||
| Percent body fat (%) | ||||
| Baseline* | 43.3 (41.6 to 45.0) | 43.3 (41.7 to 44.9) | 42.7 (40.4 to 44.9) | .84 |
| 6-month change† | −3.3 (−4.4 to −2.1) | −2.4 (−3.7 to −1.2) | −1.7 (−2.8 to −0.5) | .15 |
| Intervention v usual care | P = .05 | P = .37 | ||
| In-person v telephone | P = .35 | |||
| LBM (kg) | ||||
| Baseline* | 46.8 (43.8 to 49.7) | 44.8 (42.3 to 47.2) | 48.3 (45.4 to 51.3) | .20 |
| 6-month change† | −0.59 (−1.59 to 0.41) | −1.07 (−2.19 to 0.04) | 0.04 (−0.97 to 1.03) | .33 |
| Intervention v usual care | P = .37 | P = .14 | ||
| In-person v telephone | P = .52 | |||
| BMD (g/cm−2) | ||||
| Baseline* | 1.13 (1.09 to 1.16) | 1.09 (1.05 to 1.14) | 1.16 (1.11 to 1.20) | .09 |
| 6-month change† | −0.0003 (−0.013 to 0.012) | 0.008 (−0.006 to 0.022) | 0.0008 (−0.012 to 0.013) | .64 |
| Intervention v usual care | P = .91 | P = .44 | ||
| In-person v telephone | P = .38 | |||
| Self-reported weight (kg) | ||||
| Baseline* | 89.1 (79.8 to 98.4) | 81.5 (75.0 to 88.0) | 88.9 (78.1 to 99.6) | |
| 12-month change† | −5.6 (−8.0 to −3.3) | −6.3 (−9.9 to −2.6) | −3.8 (−5.6 to −1.9) | |
| % change‡ | −6.3 | −7.7 | −4.2 | |
| Intervention v usual care | P = .28 | P = .19 | ||
| In-person v telephone | P = .72 | |||
Abbreviations: BMD, bone mineral density; LBM, lean body mass.
*
Observed mean (95% CI).
†
Least squares means from model.
‡
Calculated from model that forces baseline to be equal across groups.