| Methods |
Allocation:
randomized, 'blocked randomization', crossover.
Blinding: double blind, 'rater blind'.
Duration: 5 days. |
| Participants |
Diagnosis:
Major depressive disorder (N = 4), bipolar disorder (N=1), endogenous depression (N = 6), schizo‐affective disorder (N = 2), minor depressive disorder (N = 1). RDC.
Inclusion criteria:
HDRS (24‐item) and BDI at least 15.
Exclusion criteria: psychotropic drugs.
N = 15 (14 completers). Age: mean 46 years.
Sex: F 1, M 14.
Setting: inpatients. |
| Interventions |
1. Bright light (1500‐2500 lux for 6 patients 5‐6 AM for 1 hour, for 8 patients 5‐6 AM and 9‐10 PM for 2 hours). N = 7.
2. Dim red light (50 lux for 6 patients 5‐6 AM for 1 hour, for 8 patients 5‐6 AM and 9‐10 PM for 2 hours). N = 7.
Device: ceiling mounted lights. |
| Outcomes |
Mental state (HDRS, BDI, circadian self‐rating). |
| Notes |
Light only. Minor SD (1‐to‐2 hours before wakeup time).
No pharmacotherapy except for one patient. |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Allocation concealment? |
Unclear risk |
B ‐ Unclear |
