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Table 2 Significance tests for fixed effects from linear mixed effects models in all subjects (N = 1700)

From: Change in depressive symptoms over higher education and professional establishment - a longitudinal investigation in a national cohort of Swedish nursing students

   Bivariable models*     
   Main effect only Main effect and interaction   
Factor Df F p F p   
Year 4 1040.666 < 0.001     
Age 3 12.790 < 0.001 11.999 < 0.001   
Age*Year 12    2.057 0.017   
Gender 1 20.086 < 0.001 19.583 < 0.001   
Gender*Year 4    0.918 0.453   
Household composition 4 17.996 < 0.001 18.252 < 0.001   
Household composition*Year 16    0.799 0.688   
Prior nurse assistant training 1 20.586 < 0.001 20.836 < 0.001   
Prior nurse assistant training*Year 4    0.576 0.680   
Prior higher education 2 0.876 0.417 0.808 0.446   
Prior higher education*Year 8    0.602 0.777   
Prior work experience 3 4.438 0.004 4.375 0.005   
Prior work experience*Year 12    1.258 0.238   
University setting 1 3.495 0.062 2.775 0.096   
University setting*year 4    3.915 0.004   
   Multivariable models**   Multivariable model***
   Main effects only (a) Main effects and interaction (b) Main effects and interactions (c)
Factor Df F p F p F p
Year 4 36.916 < 0.001    6.037 < 0.001
Age 3 2.526 0.056 2.442 0.063 2.191 0.087
Age*Year 12    1.337 0.191 1.660 0.070
Gender 1 26.765 < 0.001 26.312 < 0.001 26.002 < 0.001
Gender*Year 4    0.585 0.674 0.592 0.669
Household composition 4 14.201 < 0.001 14.281 < 0.001 12.433 < 0.001
Household composition*Year 16    1.087 0.361 1.107 0.342
Prior nurse assistant training 1 4.639 0.031 5.014 0.025 5.332 0.021
Prior nurse assistant training*Year 4    1.119 0.346 1.223 0.299
Prior higher education 2 0.585 0.557 0.634 0.530 0.596 0.551
Prior higher education*Year 8    0.719 0.675 0.653 0.733
Prior work experience 3 0.579 0.629 0.586 0.624 0.559 0.642
Prior work experience*Year 12    1.455 0.135 1.752 0.051
University setting 1 0.963 0.326 0.505 0.477 0.468 0.494
University setting*year 4    3.917 0.004 3.954 0.003
  1. * Main effect only: Models containing the main effect of a factor plus time. Main effect and interaction: Models containing the main effect of a factor plus time and the interaction between the factor and time.
  2. ** Main effects only (a): Model containing the main effects of all included factors plus time. Main effects and interaction (b): Models containing the main effects of all included factors plus time and the interaction between one factor and time.
  3. *** Model containing the main effects of all factors plus time and the interactions between all factors and time (c).