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Table 2 - Nonparametric bivariate correlations (Kendal’s tau) between outcome variables at baseline and follow-up and lifestyle predictors at baseline (German students: Top-right, Chinese students: Bottom-left)

From: Lifestyle choices and mental health: a longitudinal survey with German and Chinese students

   1 2 3 4 5 6 7 8 9 10 11 12 13
PMHa Baseline 1 1 .52*** −.45*** −.32*** −.06*** −.07*** −.02 .15*** .06*** .03* −.08*** −.06*** −.21***
PMH Follow-up 2 .33*** 1 −.36*** −.45*** −.06 −.05 −.01 .11*** .03 .03 −.04 −.02 −.19***
MHPb Baseline 3 −.42*** −.24*** 1 .44*** .09*** .04** .01 −.11*** −.08*** −.02 .10*** .07*** .22***
MHP Follow-up 4 −.22*** −.41*** .29*** 1 .10*** .01 −.01 −.08*** −.04 −.09*** .03 .02 .18***
Gender 5 .00 .02* −.02* −.09*** 1 −.02 −.21*** −.08*** .02 −.10*** −.01 .13*** −.02
Age 6 .02** .05*** −.02** −.03*** −.02** 1 .14*** −.08*** −.01 .04** .11*** .05** .08***
Body mass index 7 .01* .01 .00 .00 −.20*** .03*** 1 −.02 −.01 .03* .05** −.06*** .05***
Physical activity 8 .13*** .09*** −.11*** −.06*** −.17*** −.07*** .07*** 1 −.01 .05** −.12*** −.02 −.13***
Mental activity 9 .12*** .09*** −.11*** −.08*** −.02** −.03*** .02** .19*** 1 .05** −.03 .07*** −.05***
Alcohol frequency 10 −.03*** −.04*** .07*** .09*** −.39*** −.01 .08*** .10*** −.01 1 .23*** .03 .04**
Smoking (no/yes) 11 −.05*** −.04*** .08*** .11*** −.31*** .00 .05*** .06*** −.06*** .38*** 1 .06** .12***
Vegetarian diet (no/yes) 12 −.01 −.03** .04*** .07*** −.09*** −.02* .00 .04*** −.07*** .07*** .13*** 1 .06***
Irregular social rhythm 13 −.26*** −.17*** .28*** .16*** −.01 −.07*** −.03*** −.16*** −.13*** .08*** .07*** .02** 1
  1. * p < .05; ** p < .01; *** p < .001
  2. apositive mental health; bmental health problems