| Methods |
Allocation: randomized, 'counterbalanced crossover'.
Blinding: not stated.
Duration: 1 day. |
| Participants |
Diagnosis: Major depressive disorder (N = 8), bipolar II (N = 1), schizoaffective (N = 1), dysthymia (N = 1).
N = 12.
Age: not stated. Sex: not stated. Setting: inpatients. |
| Interventions |
1. Bright white light (2500 lux 5‐6 AM for 1 hour). N = 4.
2. Dim red light (25 lux 5‐6 AM for 1 hour). N = 3.
3. Dim red light (25 lux 2‐3 AM for 1 hour). N = 5.
Device: fluorescent bulbs in a frame. |
| Outcomes |
Mental state (HDRS, BDI). |
| Notes |
Light only. Minor SD (1‐to‐2 hours before wakeup time).
About half of the sample on pharmacotherapy.
Only interventions 1. and 2. compared. |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Allocation concealment? |
Unclear risk |
B ‐ Unclear |
