• Characterizing Adult Sleep Behavior Over 20 Years-The Population-Based Doetinchem Cohort Study.

      Zomers, Margot L; Hulsegge, Gerben; van Oostrom, Sandra H; Proper, Karin I; Verschuren, W M Monique; Picavet, H Susan J (2017-07-01)
      To describe sleep duration patterns of adults over a 20-year period; to compare sociodemographic, lifestyle, and health characteristics across these patterns; and to relate the patterns to sleep quality.
    • International comparison of experience-based health state values at the population level.

      Heijink, Richard; Reitmeir, Peter; Leidl, Reiner (2017-07-07)
      Decision makers need to know whether health state values, an important component of summary measures of health, are valid for their target population. A key outcome is the individuals' valuation of their current health. This experience-based perspective is increasingly used to derive health state values. This study is the first to compare such experience-based valuations at the population level across countries.