Light treatment for seasonal Winter depression in African-American vs Caucasian outpatients

Table 3 Response, remission, and depression score changes by groups

Variable	African-Americans (n = 41)	Caucasians (n = 24)	P-value1
Response, 50% reduction SIGH-SAD, n (%)	33 (80.5)	20 (83.3)	0.78
Remission, SIGH-SAD < 8, n (%)	19 (46.3)	18 (75.0)	0.02
SIGH-SAD, % change, mean ± SD	-70.4 (22.7)	76.0 (22.6)	0.34
BDI-II, % change, mean ± SD	-61.8 (32.2)	-68.1 (32.9)	0.46
POMS-A, % change, mean ± SD	-46.6 (46.7)	-46.8 (48.8)	0.98
POMS-D, % change, mean ± SD	-52.7 (47.1)	-49.2 (54.9)	0.78
Treatment days missed, mean ± SD	8.7 (11.0)	7.4 (8.3)	0.61
Percent adherence, mean ± SD	79.4 (26.2)	82.4 (19.7)	0.61

¹P-values from t-test comparing races on age; χ² for other variables. SIGH-SAD: Structured Interview Guide for Hamilton-Seasonal Affective Disorder version; BDI-II: Beck Depression Inventory Second Edition; POMS-A: Profile of Mood States-Anxiety; POMS-D: Profile of Mood States-Depression.