Table 1.

Subject Demographics

Characteristic	FT	BPD	P Value*
Subjects, n	34	51
Gestational age, wk	39.4 (0.9)	26.1 (1.7)	<0.001
Female sex, n (%)	19 (56)	28 (55)	0.93
White race, n (%)	21 (62)	37 (72)	0.30
Age corrected, mo	15.9 (9.3)	17.4 (5.2)	0.40
Body length, cm	76.4 (9.4)	75 (6.5)	0.43
Hb, g/dl	12.1 (1.2)	12.6 (1.1)	0.033

Definition of abbreviations: BPD = subjects with bronchopulmonary dysplasia; FT = healthy full-term.

Values are means (SD) for all variables except sex and race, which are represented by frequency and percent for the given categories.

^*Two-sample t tests were used for continuous variables, and χ² tests were used for categorical variables.