Table 4.
Outcome | POM¥ of participants (N) | POM¥ of nonparticipants (N) | ATE+ | ATE+ 95% CI | p of ATE+ | % change | % change CI | p of % |
---|---|---|---|---|---|---|---|---|
Positive MHLa,1 | 4.63 (99) | 4.54 (205) | 0.10 | 0.01–0.20 | 0.04* | 2.1 | 0.2-4.4 | 0.03* |
Mental wellbeingb,2 | 3.60 (78) | 3.40 (167) | 0.20 | −0.05-0.46 | 0.120 | 6.0 | −1.6-13.5 | 0.123 |
Mental wellbeing (girls) | 3.48 (63) | 3.17 (81) | 0.31 | 0.03–0.58 | 0.028* | 9.7 | 0.8-18.5 | 0.031* |
Mental wellbeing (boys) | 3.70 (15) | 3.71 (101) | −0.005 | −0.61-0.6 | 0.988 | 0.01 | −16.5-16.2 | 0.988 |
*Significant at p ≤ 0.050
Total N = 340; participated n = 109; did not participate n = 229. Cases deleted listwise
aPositive MHL = Positive mental health literacy measured by the MHPK-10
bMental wellbeing was measured by the SWEMWBS
+ATE = average treatment effect
¥POM = potential outcome mean
1Values were adjusted for baseline positive MHL, parental education level, grade level and years living in Norway
2Values were adjusted for baseline mental wellbeing, anxiety and depression, gender, physical health, HL, loneliness, family finances and school-related stress