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Between-group analysis.
| Users with self-reported PHQ-2a=6 | Number of users (N) | Mean improvement (SD) | Median improvement | Mann-Whitney U (P valuec) | Effect size (CLb) |
| High users (nh) | 108 | 5.84 (6.66) | 6.00 | 835.5 (P=.03) | 0.632 |
| Low users (nl) | 21 | 3.52 (6.15) | 2.00 | — | — |
aPHQ-2: Patient Health Questionnaire-2.
bCL: common language effect size.
c95% significance.
