Table I.

Demographic characteristics of VLBW infants

	Cocaine exposed (n = 41)	Non-exposed (n = 41)	t/χ2	p
Race (%black)	100	100	—	—
Sex (%male)	58	46	1.2	NS
Maternal marital status*	85	66	3.2	<0.05
Social class†	4.5 ± 0.7	4.3 ± 0.7	0.9	NS
Maternal age (yr)†	27.1 ± 4	25.6 ± 6	1.2	NS

NS, Not significant.

^*Percentage unmarried.

^†Mean ± SD.