Table 1.

Sample demographics by group

	Normal sleepers (N = 737)	Acute insomnia (N = 140)
Sex (Female)	548 (74.4%)	96 (67.9%)
Martital status
Married/Cohabiting	367 (49.8%)	75 (53.57%)
Single	348 (47.22%)	49 (35%)
Divorced/Separated	20 (2.71%)	14 (10%)
Widowed	2 (0.27%)	2 (1.43%)
Ethnicity
White	694 (94.17%)	126 (90%)
Black	9 (1.22%)	7 (4.5%)
Asian	24 (3.26%)	4 (2.86)
Other	10 (1.36%)	3 (2.14%)
Education Level
School	410 (55.63%)	36 (25.71%)
College	83 (11.26%)	47 (33.57%)
Degree	148 (20.08%)	27 (19.29%)
Higher Degree	68 (9.23%)	20 (14.29%)
Doctorate	28 (3.8%)	10 (7.14%)