TY - JOUR
T1 - Greater improvement in summer than with light treatment in winter in patients with seasonal affective disorder
AU - Postolache, Teodor T.
AU - Hardin, Todd A.
AU - Myers, Frances S.
AU - Turner, Erick H.
AU - Yi, Ludy Y.
AU - Barnett, Ronald L.
AU - Matthews, Jeffery R.
AU - Rosenthal, Norman E.
PY - 1998/11
Y1 - 1998/11
N2 - Objective: The authors sought to compare the degree of mood improvement after light treatment with mood improvement in the subsequent summer in patients with seasonal affective disorder. Method: By using the Seasonal Affective Disorder Version of the Hamilton Depression Rating Scale, the authors rated 15 patients with seasonal affective disorder on three occasions: during winter when the patients were depressed, during winter following 2 weeks of light therapy, and during the following summer. They compared the three conditions by using Friedman's analysis of variance and the Wilcoxon signed ranks test. Results: The patient's scores on the depression scale were significantly higher after 2 weeks of light therapy in winter than during the following summer. Conclusions: Light treatment for 2 weeks in winter is only partially effective when compared to summer. Further studies will be necessary to assess if summer's light or other factors are the main contributors to this difference.
AB - Objective: The authors sought to compare the degree of mood improvement after light treatment with mood improvement in the subsequent summer in patients with seasonal affective disorder. Method: By using the Seasonal Affective Disorder Version of the Hamilton Depression Rating Scale, the authors rated 15 patients with seasonal affective disorder on three occasions: during winter when the patients were depressed, during winter following 2 weeks of light therapy, and during the following summer. They compared the three conditions by using Friedman's analysis of variance and the Wilcoxon signed ranks test. Results: The patient's scores on the depression scale were significantly higher after 2 weeks of light therapy in winter than during the following summer. Conclusions: Light treatment for 2 weeks in winter is only partially effective when compared to summer. Further studies will be necessary to assess if summer's light or other factors are the main contributors to this difference.
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U2 - 10.1176/ajp.155.11.1614
DO - 10.1176/ajp.155.11.1614
M3 - Article
C2 - 9812130
AN - SCOPUS:0031761351
SN - 0002-953X
VL - 155
SP - 1614
EP - 1616
JO - American Journal of Psychiatry
JF - American Journal of Psychiatry
IS - 11
ER -