Table 1.

Descriptive Statistics for the Sample Populations

Birth Cohort	# Births	Missing Data (%)			Mean		# Deaths	CDR
		w	g	overall	w	g
Af. Am. F.	54,968	0.1	2.1	2.2	3119	39.1	690	12.6
Af. Am. M.	57,449	0.2	2.0	2.2	3240	39.1	848	14.8
Eu. Am. F.	255,516	0.2	2.0	2.2	3375	40.0	1294	5.1
Eu. Am. M.	270,189	0.2	2.1	2.2	3507	39.9	1734	6.4

Source: Table 1 in Fang et al. 2007, p. 477

Af. = African, Eu. = European, Am. = American, F. = Females, M. = Males

w = Birth weight (gram)

g = Gestational age (week)

CDR = Crude death rate (deaths per 1000 births)