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Table 4 Mixed model analyses of change over time for continuous outcome measures

From: Teen Mental Health First Aid for years 7–9: a description of the program and an initial evaluation

 Main effect of timeMean change over time contrasts
Pre to postPre to follow-up
pSchool ICCM95% CIpd95% CIM95% CIpd95% CI
Confidence in helping Jeanie0.003*0.0000.160.07 to 0.260.001*0.170.03 to 0.310.05− 0.04 to 0.150.2670.07− 0.07 to 0.21
Quality of intended support< 0.001*0.0091.280.78 to 1.78< 0.001*0.260.12 to 0.400.02− 0.49 to 0.520.9520.03− 0.11 to 0.17
Stigma—weak not sick< 0.001*0.076− 0.28− 0.34 to − 0.21< 0.001*0.430.29 to 0.56− 0.14− 0.20 to − 0.07< 0.001*0.240.10 to 0.38
Stigma—dangerous/unpredictable0.0930.013− 0.02− 0.09 to 0.050.5110.07− 0.07 to 0.20− 0.08− 0.15 to − 0.010.031*0.13− 0.00 to 0.27
Social distance0.0020.006− 0.11− 0.17 to − 0.05< 0.001*0.200.06 to 0.34− 0.05− 0.12 to 0.010.0890.11− 0.03 to 0.24
Number of adults helpful for Jeanie< 0.001*0.0590.720.56 to 0.88< 0.001*0.450.31 to 0.590.380.22 to 0.54< 0.001*0.220.08 to 0.36
Quality of MHFA provided to peer< 0.001*0.027     0.470.23 to 0.70< 0.001*0.330.14 to 0.52
Quality of MHFA received from peer0.2390.001     0.30− 0.20 to 0.800.2390.19− 0.14 to 0.52
K60.052a0.024     0.43− 0.00 to 0.870.052− 0.05− 0.19 to 0.09
  1. *statistically significant
  2. aThis p-value was 0.194 after transforming the variable to adjust for positive skew associated with outliers