Table 4.

Predicting change in weight (kg) from time point (compared to mid-course checkpoint 1 - observations = 346)^a

	model 1			model 2			model 3
	coef	95% CI	p	coef	95% CI	p	coef	95% CI	p
main effects
time pointb
pre-course	0.65	(−0.12, 1.42)	0.098	0.82	(0.23, 1.41)	0.006	0.33	(−0.37, 1.04)	0.356
checkpoint 2	1.64	(0.86, 2.42)	0.001	1.54	(0.95, 2.14)	0.001	1.21	(0.56, 1.86)	0.001
checkpoint 3	1.70	(0.91, 2.49)	0.001	1.57	(0.97, 2.17)	0.001	1.40	(0.78, 2.01)	0.001
post-course	1.01	(0.22, 1.80)	0.012	0.82	(0.22, 1.42)	0.008	1.00	(0.38, 1.61)	0.001
sex (male)c	13.70	(9.24, 18.16)	0.001	13.59	(9.19, 17.99)	0.001	13.61	(9.22, 18.00)	0.001
interaction terms
time point x sex
pre-course x sex	0.40	(−0.79, 1.59)	0.507	-	-	-	-	-	-
checkpoint 2 x sex	−0.24	(−1.45, 0.96)	0.693	-	-	-	-	-	-
checkpoint 3 x sex	−0.31	(−1.52, 0.90)	0.617	-	-	-	-	-	-
post-course x sex	−0.44	(−1.65, 0.76)	0.471	-	-	-	-	-	-
covariates
age	0.16	(−.20, 0.51)	0.388	0.16	(−0.20, 0.51)	0.390	0.16	(−0.20, 0.51)	0.390
activity difficulty							−0.67	(−1.22, −0.12)	0.017

^acoef and 95% CI from Linear Mixed Models

^bcomparison for variables compared to checkpoint 1

^csex: 1 = male; 0 = female