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Seasonal affective disorder: Do non-drug interventions such as light and vitamin therapy lead to better results? IQWiG Reports – Commission No. HT18-04 [Internet] Cologne (Germany): Institute for Quality and Efficiency in Health Care (IQWiG); 2021 Apr 14.

Cover of Seasonal affective disorder

Seasonal affective disorder: Do non-drug interventions such as light and vitamin therapy lead to better results? IQWiG Reports – Commission No. HT18-04 [Internet]

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2Research questions

The aims of this investigation are to

  • assess the benefit of treating SAD patients with phototherapy or vitamin D therapy in comparison with each other, treatment with second-generation antidepressants, or psychotherapy (according to the G-BA psychotherapy guideline plus systemic therapy), sham treatment, or no treatment (waiting list) with regard to patient-relevant outcomes
  • assess costs (intervention costs) arising in the treatment of SAD patients with phototherapy or vitamin D therapy in comparison with no treatment, treatment with second-generation antidepressants, or psychotherapy
  • assess the cost effectiveness of phototherapy or vitamin D therapy in comparison with no treatment, treatment with second-generation antidepressants, or psychotherapy in SAD patients as well as
  • review ethical, social, legal, and organizational aspects associated with phototherapy or vitamin D therapy.
© IQWiG (Institute for Quality and Efficiency in Health Care)
Bookshelf ID: NBK569930

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