Table 3. Changes in Primary and Secondary Outcome Measures Among MOVE! Participants and Eligible Nonparticipants, VA Northwest Region.
| Measure | Mean (95% CI) | P Value | |
|---|---|---|---|
|
| |||
| Nonparticipants (n = 19,487)a | Participants (n = 942)a | ||
| Weight, lb | |||
| Baseline | 223.3 (222.7 to 223.9) | 252.3 (248.9 to 255.6) | <.001 |
| Follow-up | |||
| 6 mo | 224.4 (223.8 to 225.0) | 250.5 (247.2 to 253.8) | <.001 |
| 12 mo | 223.6 (223.0 to 224.2) | 250.6 (247.2 to 253.8) | <.001 |
| Change | |||
| 6 mo | 0 (−0.2 to 0.1) | −2.1 (−2.8 to −1.5) | <.001 |
| 12 mo | 0.3 (0.1 to 0.4) | −1.7 (−2.5 to −0.9) | <.001 |
| Adjustedb Δ participants − Δ nonparticipants | |||
| 6 mo | −1.3 (−2.6 to −0.02) | .048 | |
| 12 mo | −0.9 (−2.0 to 0.1) | .07 | |
| Body mass index, kg/m2 | |||
| Baseline | 32.2 (32.1 to 32.3) | 36.8 (36.4 to 37.2) | <.001 |
| Follow-up | |||
| 6 mo | 32.4 (32.3 to 32.4) | 36.5 (36.1 to 36.9) | <.001 |
| 12 mo | 32.2 (32.2 to 32.3) | 36.6 (36.1 to 37.0) | <.001 |
| Change | |||
| 6 mo | 0 (−0.02 to 0.02) | −0.3 (−0.4 to −0.2) | <.001 |
| 12 mo | 0 (0.02 to 0.06) | −0.2 (−0.4 to −0.1) | <.001 |
| Adjustedb Δ participants − Δ nonparticipants | |||
| 6 mo | −0.2 (−0.4 to −0.01) | .04 | |
| 12 mo | −0.1 (−0.3 to 0.001) | .05 | |
Abbreviations: VA, Department of Veterans Affairs; CI, confidence interval; BMI, body mass index.
a Data were available to assess 6-month change measures for 17,139 nonparticipants and 951 participants. Mean baseline weight and BMI in nonparticipants was 224.4 lb (95% CI, 223.8–225.0 lb) and 32.4 kg/m2 (95% CI, 32.3–32.4 kg/m2), respectively. Mean baseline weight and BMI in participants was 252.6 lb (95% CI, 249.3–255.9 lb) and 36.8 kg/m2 (95% CI, 36.4–37.2 kg/m2), respectively.
b Multivariable adjusted analyses included the following covariates: baseline value for measure, days between baseline and follow-up measurements, age at baseline (<40, 40–54, 55–64, 65–69), sex, race (white, black, Native Hawaiian/Pacific Islander, American Indian/Alaska Native, other), marital status (never married, married, divorced/separated, widowed), facility (5 sites), service connectedness (not service-connected, 0%–20%, 30%–60%, 70%–100%), cigarette smoking status (never or former, current, unknown), BMI at baseline (continuous), medical center or community-based outpatient clinic (CBOC), distance to medical center or CBOC (<30 miles, ≥30 miles), number of primary care visits during follow-up (1 or 2, 3 or 4, 5–8, ≥9), hypertension, osteoarthritis, dyslipidemia, sleep apnea, and mental illness. Standard errors were adjusted for clustering of participants in facilities using a clustered sandwich estimator.