Table 1.

Participant demographics and depression scores in Study 1 and Study 2

	Study 1	Study 2	Wilcoxon test
Recruitment
Initial I recruitment	200	400	–
Initial II retention (%)	–	324 (81)	–
Follow-up retention (%)	179 (90)	288 (72)	–
Demographics
Mean age (SD)	42.5 (14.0)	43.5 (14.7)	P = 0.50
UK residence participants (%)	173 (97)	286 (99)	–
Gender, No. (%)
Female	93 (52)	144 (50)	–
Male	85 (47)	139 (48)	–
Nonbinary	1 (1)	3 (1)	–
Prefer not to say	0 (0)	2 (1)	–
Education level, No. (%)
Less than high school	1 (1)	4 (1)	–
High school	23 (13)	48 (17)	–
GED or equivalent	7 (4)	12 (4)	–
Associate degree	17 (9)	25 (9)	–
Some college no degree	18 (10)	65 (23)	–
Bachelor’s degree	74 (41)	87 (30)	–
Master’s degree	31 (17)	32 (11)	–
Professional degree	6 (3)	5 (2)	–
Doctoral degree	2 (1)	9 (3)	–
Prefer not to say	0 (0)	1 (0)	–
Symptom measures (PHQ-9), mean (SD)
Initial depression symptoms	5.91 (5.21)	6.48 (5.35)	P = 0.21
Follow-up depression symptoms	5.81 (4.92)	6.80 (5.72)	P = 0.15
Depression symptoms change	−0.09 (3.39)	0.32 (3.25)	P = 0.20