Kok, R.

depressive symptoms symptom country depressive difference problem vignette heterogeneity model depression health european study scale prevalence respondent european countries europe concentration concentration problems level education hopit model 30 days hopit result 0.000 dif ficulty variation threshold ratio sample cross-national cross-national differences netherland probit schooling probability probit model response sweden mediterranean group journal night fi ndings italy spain counterfactual poland measure ficient ageing effect denmark signi response scale republic france british journal ficulty mood problems czech rate ratios disability mannheim research institute coef ficients analysis germany objective table 64- greece reference retirement mediterranean countries outcome value adult objective measures