Table 2.

Multiple regression results for weight change groups in each study period^a.

Engagement measuresb			Time points
			9-16 weeks						17-32 weeks							33-52 weeks
			Estimate		SE		Adjc R2		Estimate		SE		Adj R2		Estimate			SE		Adj R2
Days with at least 1 meal logged
	Moderate loss	0.20		0.01		N/Ad		0.25		0.01		N/A		0.24			0.02		N/A
	High loss	0.25		0.01		0.05		0.34		0.01		0.08		0.37			0.02		0.12
Articles read
	Moderate loss	0.52		0.03		N/A		0.89		0.05		N/A		0.63			0.07		N/A
	High loss	0.68		0.04		0.05		1.20		0.05		0.06		1.01			0.07		0.05
Meals logged
	Moderate loss	5.83		0.15		N/A		5.25		0.19		N/A		4.58			0.37		N/A
	High loss	8.06		0.19		0.16		8.27		0.21		0.20		8.22			0.37		0.17
Coach messages
	Moderate loss	0.06		0.01		N/A		0.07		0.01		N/A		0.08			0.01		N/A
	High loss	0.09		0.01		0.01		0.10		0.01		0.01		0.12			0.01		0.03
Steps
	Moderate loss	4014.04		483.60		N/A		4452.65		579.76		N/A		4535.31			1165.38		N/A
	High loss	8806.42		601.71		0.05		9821.59		633.01		0.06		8963.01			1176.49		0.05
Weigh ins
	Moderate loss	0.23		0.01		N/A		0.26		0.01		N/A		0.16			0.017		N/A
	High loss	0.29		0.01		0.17		0.34		0.01		0.16		0.27			0.017		0.10
Exercises
	Moderate loss	0.25		0.07		N/A		0.28		0.08		N/A		0.17			0.16		N/A
	High loss	0.51		0.09		0.01		0.77		0.09		0.01		0.87			0.16		0.02

^aThe stable group was used as the reference group.

^bResults are the summary of 7 individual multiple linear regressions. Each engagement measure was a dependent variable of its own regression where weight change groups, gender, age and baseline BMI were independent variables.

^cAdj: adjusted.

^dN/A: not applicable.