TY  - JOUR
PY  - 2022//
TI  - Adjunctive bright light therapy for non-seasonal major depressive disorder: a randomized controlled trial
JO  - International journal of environmental research and public health
A1  - Chen, I.-Peng
A1  - Huang, Chun-Chao
A1  - Huang, Hui-Chun
A1  - Yang, Fan-Pei Gloria
A1  - Ko, Kai-Ting
A1  - Lee, Yun-Tse
A1  - Sun, Fang-Ju
A1  - Liu, Shen-Ing
SP  - e12430
EP  - e12430
VL  - 19
IS  - 19
N2  - This double-blind, randomized controlled trial assessed bright light therapy (BLT) augmentation efficacy compared with placebo light in treating non-seasonal major depressive disorder. The study participants belonged to a subtropical area (24.5°-25.5°N) with extensive daylight and included outpatients who had received stable dosages and various regimens of antidepressive agents for 4 weeks before enrollment. The outcomes were the 17-item Hamilton Depression Rating Scale, Montgomery-Asberg Depression Rating Scale, and Patient Health Questionnaire-9, which were assessed at weeks 1, 2, and 4. A total of 43 participants (mean age 45 years, ranging from 22-81) were randomized into the BLT [n = 22] and placebo light groups [n = 21]. After a 4-week administration of morning light therapy (30 min/day), depressive symptoms did not reduce significantly, which might be due to the small sample size. Nonetheless, this study had some strengths because it was conducted in warmer climates, unlike other studies, and examined diverse Asians with depression. Our findings suggest that several factors, such as poor drug response, different antidepressive regimens, duration of BLT, and daylength variability (i.e., natural daylight in the environment) may influence the utility of add-on BLT. Researchers may consider these important factors for future non-seasonal depression studies in subtropical environments.<p />  <p>Language: en</p>
LA  - en
SN  - 1661-7827
UR  - http://dx.doi.org/10.3390/ijerph191912430
ID  - ref1
ER  -