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. Author manuscript; available in PMC: 2015 Jan 27.
Published in final edited form as: Neurotoxicol Teratol. 2006 Dec 8;29(3):323–330. doi: 10.1016/j.ntt.2006.12.002

Table 1.

Maternal demographic, obstetrical and drug use characteristics grouped by any cocaine use during pregnancy.

Cocaine-unexposed
CU (N=206)
Cocaine 1
CE1 (N=53)
Cocaine 2
CE2 (N=27)
P value!
Demographic Information N (%) N (%) N (%)
Mean ± SD Mean ± SD Mean ± SD
 Mean Age ± sd 24.2 ± 5.5 23.1 ± 5.2 28.4 ± 8.5 .001
 Education (yrs) 11.9 ± 1.6 11.2 ± 1.7 11.0 ± 1.8 .005
 African-American 197 (94) 47 (89) 22 (92) NS
 Income <$5,000 126 (61) 36 (68) 17 (71) NS
 Unemployed 83 (40) 32 (60) 16 (67) .003
 Welfare 104 (50) 30 (57) 12 (50) NS
 Married 24 (12) 8 (15) 6 (25) NS
Obstetric History
 Gravida ± sd 2.4 ± 2.2 2.5 ± 3.0 4.1 ± 2.9 .002
 Parity± sd 1.2 ± 1.4 1.2 ± 1.3 2.6 ± 2.4 .000
Drug and Alcohol Use During Pregnancy N (%) N (%) N (%)
 Alcohol 31 (15) 14 (26) 9 (36) .01
 Tobacco 59 (28) 24 (45) 13 (52) .008
 Marijuana 64 (31) 20 (38) 7 (28) NS

CE1 = Log riah <1.5; CE2 = Log riah ≥ 1.5.

!

ANOVA or Chi-square using ordinal level of cocaine exposure (O,1,2).

NS, non-significant