Table 1.

Within-group analysis.

Users with self-reported PHQa-2=6		Number of users (N)	Mean (scores)	Median (scores)	W-value (P valueb)
High users
	Pre-PHQ-9	108	18.92	19.50	478.5 (P<.001)
	Post-PHQ-9	108	13.07	12.00	—
Low users
	Pre-PHQ-9	21	19.86	21.00	32.5 (P=.01)
	Post-PHQ-9	21	16.33	17.00	—

^aPHQ: Patient Health Questionnaire.

^b95% significance.