Table 5.

Linear regression results predicting 12-month weight loss with 8-week data.

Coefficients	b (SE)	t test (df)	P value
Intercept	−6.69E−02 (2.62E−01)	−2.55 (147)	.01
App-use (PC1a)	2.96E−03 (2.05E−03)	1.45 (147)	.15
App-calories (PC2b)	4.01E−03 (3.17E−03)	1.26 (147)	.21
Treatment assignment	6.27E−03 (1.12E−02)	0.56 (147)	.58
Age	1.34E−03 (6.08E−04)	2.21 (147)	.03
Self-weighing frequency at 8 weeks	7.84E−04 (3.77E−04)	2.08 (147)	.04

^aPC₁: principal component 1.

^bPC₂: principal component 2.