. 2019 Oct 17;6(10):e13189. doi: 10.2196/13189

Table 3.

Estimated means and between-arm differences on primary and secondary outcomes at each follow-up time (N=413). Estimated using linear mixed-effects regression, except for outcomes PA and NA immediately postintervention that were estimated using linear regression. All models were adjusted by gender, K10, and whether participants had searched for Web-based mental health services in the last 2 weeks. Estimates using model with no adjustment for Web-based health services search were similar (not shown).

Outcome		Link, n=205		Control, n=208		Difference	95% CI	P value
Outcome		Mean	95% CI	Mean	95% CI	Difference	95% CI	P value
Positive affect
	Baseline^a	23.0	22.2 to 23.8	23.0	22.2 to 23.8	—^b	—	—
	Immediate	24.4	22.1 to 26.7	24.1	21.8 to 26.3	0.3	−1.1 to 1.8	.65
	1 month	30.2	27.9 to 32.4	29.5	27.3 to 31.6	0.7	−1.0 to 2.4	.44
	3 months	31.6	29.4 to 33.8	30.6	28.4 to 32.8	1.0	−0.7 to 2.8	.24
Negative affect
	Baseline^a	20.4	19.6 to 21.3	20.4	19.6 to 21.3	—	—	—
	Immediate	16.7	14.8 to 18.6	18.1	16.2 to 19.9	−1.4	−2.5 to −0.2	.02
	1 month	13.5	11.5 to 15.4	16.0	14.0 to 18.1	−2.6	−4.1 to −1.1	.001
	3 months	15.6	13.6 to 17.5	16.1	14.1 to 18.0	−0.5	−2.0 to 1.0	.49
Psychological distress (K10)
	Baseline^a	26.2	24.1 to 28.3	26.2	24.1 to 28.3	—	—	—
	1 month	24.2	22.0 to 26.5	25.2	22.9 to 27.4	−0.9	−2.4 to 0.6	.23
	3 months	23.4	21.1 to 25.6	24.4	22.1 to 26.6	−1.0	−2.5 to 0.6	.21
Barriers to seeking help
	Baseline^a	34.9	32.7 to 37.2	34.9	32.7 to 37.2	—	—	—
	1 month	35.4	33.0 to 37.9	35.0	32.6 to 37.5	0.4	−1.3 to 2.0	.65
	3 months	33.8	31.4 to 36.3	34.6	32.1 to 37.0	−0.8	−2.5 to 1.0	.41

^aEstimated mean (95% CI) of baseline outcome for the two study arms are the same because they were constrained to be equal in the mixed-effects model.

^bNot applicable.