Table 3.

Results of generalized linear mixed models.

	B	SE	z-value	p value
Opening a risk alert
Conditiona	−0.37	0.24	−1.56	0.12
Total alerts delivered	0.01	0.002	4.87	<0.001**
WW program: mixedb	−0.56	0.26	−2.13	0.03*
WW program: freestyleb	−0.91	0.29	−3.13	0.002**
Study week	−0.22	0.06	−3.89	<0.001**
Conditiona × study week	0.02	0.04	0.62	0.54
Perceived effectiveness
Conditiona	0.16	0.14	1.11	0.27
Total alerts opened	−0.01	0.001	−4.29	<0.001**
WW program: mixedb	−0.26	0.14	−1.85	0.06
WW program: freestyleb	0.06	0.16	0.36	0.72
Study week	−0.03	0.02	−1.67	0.09
Conditiona × study week	−0.03	0.03	−1.31	0.18

WW: Weight Watchers; SE: standard error.

^aReference group: OT-S.

^bReference group: beyond the scale.

^*p < 0.05.

^**p ⩽ 0.01.