Additional file 1: of Reading and writing difficulties and self-rated health among Danish adolescents: cross-sectional study from the FOCA cohort KjeldsenMette-Marie StapelfeldtChristina LindholdtLouise LundThomas LabriolaMerete 2019 Sensitivity analyses of self-assessed SES, Sensitivity analyses of self-assessed SES. (DOCX 31 kb)