BACKGROUND: Circadian variability in depression has not been well characterized with respect to the "eveningness-morningness" dimension. METHODS: The "eveningness-morningness" dimension, as measured by the Home and Ostberg questionnaire, was examined among a student population (n = 1617) that was named as "depressive". Three depression scales (BDI, GDS-SF, and CESD) were used to determine "depressiveness". The Horne and Ostberg questionnaire was used to measure the degree of "eveningness-morningness". It was hypothesized that there would be negative and significant correlations between the scores on the Horne and Ostberg questionnaire and the depression scales. Consequently, it was expected that there would be a significantly higher number of evening types than the morning types among the participants identified as "depressives". RESULTS: There were significant, negative correlations between the Horne and Ostberg questionnaire scores and the responses on the 3 depression scales (for BDI r= -.174, GDS-SF r= -.182, CESD r = -.176, all p < .001). Also, a significantly higher incidence of evening types than of the morning types among the "depressive" students was found (chi2 = 11.18, p < .01). LIMITATIONS: It is uncertain to what extent these data generalize to clinical populations. CONCLUSIONS: "Depressive" college students are more likely to be evening types.
BACKGROUND: Circadian variability in depression has not been well characterized with respect to the "eveningness-morningness" dimension. METHODS: The "eveningness-morningness" dimension, as measured by the Home and Ostberg questionnaire, was examined among a student population (n = 1617) that was named as "depressive". Three depression scales (BDI, GDS-SF, and CESD) were used to determine "depressiveness". The Horne and Ostberg questionnaire was used to measure the degree of "eveningness-morningness". It was hypothesized that there would be negative and significant correlations between the scores on the Horne and Ostberg questionnaire and the depression scales. Consequently, it was expected that there would be a significantly higher number of evening types than the morning types among the participants identified as "depressives". RESULTS: There were significant, negative correlations between the Horne and Ostberg questionnaire scores and the responses on the 3 depression scales (for BDI r= -.174, GDS-SF r= -.182, CESD r = -.176, all p < .001). Also, a significantly higher incidence of evening types than of the morning types among the "depressive" students was found (chi2 = 11.18, p < .01). LIMITATIONS: It is uncertain to what extent these data generalize to clinical populations. CONCLUSIONS: "Depressive" college students are more likely to be evening types.
Authors: Tessa Concepcion; Clarita Barbosa; Juan Carlos Vélez; Micah Pepper; Asterio Andrade; Bizu Gelaye; David Yanez; Michelle A Williams Journal: J Am Coll Health Date: 2014
Authors: Ulla Broms; Marjaana Pennanen; Kristiina Patja; Hanna Ollila; Tellervo Korhonen; Aino Kankaanpää; Ari Haukkala; Annamari Tuulio-Henriksson; Markku Koskenvuo; Erkki Kronholm; Tiina Laatikainen; Markku Peltonen; Timo Partonen; Jaakko Kaprio Journal: J Addict Res Ther Date: 2012-01-25
Authors: Joel Wood; Boris Birmaher; David Axelson; Mary Ehmann; Catherine Kalas; Kelly Monk; Scott Turkin; David J Kupfer; David Brent; Timothy H Monk; Vishwajit L Nimgainkar Journal: Psychiatry Res Date: 2009-03-10 Impact factor: 3.222