Table 4. One Degree of Freedom Contrast Estimates of the Repeated Mixed Effects Multivariate Regression Model: Mean Difference in Change from Baseline by Patient Intervention Group

Outcome	Change Between Groups at 4 Months^†		Change Between Groups at 10 Months^†		P Value
Outcome	Mean	95% Confidence Interval	Mean	95% Confidence Interval	P Value
BMI	0.095	−0.220 to 0.410	−0.085	−0.406 to 0.237	.583
Systolic blood pressure^*	0.478	−2.224 to 3.180	−3.262	−6.011 to −0.513	.025
Fitness	−0.168	−0.493 to 0.158	−0.207	−0.532 to 0.118	.392
PrimeScreen	0.013	−0.050 to 0.076	0.055	−0.009 to 0.119	.232
SF-12 mental score	−0.077	−0.270 to 0.116	0.078	−0.120 to 0.276	.356
HealthState	1.602	−3.248 to 6.452	0.304	−4.627 to 5.235	.802

The models were adjusted for repeated measures, clustering of patients within practices, age, comorbidities, education, sex, income, marital status, race, and ethnicity.
↵* Multivariate model: P < .05, time by patient group interaction.
↵† Coefficients are in terms of differential change from baseline by the enhanced feedback group compared to the limited feedback group.
BMI, body mass index; SF-12, 12-item Short Form.