Subject characteristics in relation to MetS prevalence or not.

Data are presented as median (Q1-Q3) or as per cent, where applicable. Differences between MetS-strata were analysed using Mann-Whitney U-test or chi-square test.*Reporting tension, anxiousness, nervousness or sleep disturbances more or less constantly over the last year or longer** Chi-square test for nominal data and Mann-Whitney test for ordinal data.Subject characteristics in relation to MetS prevalence or not.