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. Author manuscript; available in PMC: 2013 Sep 1.

Published in final edited form as: J Pediatr. 2012 Apr 4;161(3):427–433.e1. doi: 10.1016/j.jpeds.2012.02.037

Table 1.

Participant Characteristics

	Preterm (n = 69)		Full Term (n = 43)		p

	Mean (SD)	Range	Mean (SD)	Range
Age (years) ^a	12.3 (1.8)	9.2-16.1	12.7 (2.1)	9.2-16.9	.287
Perinatal Data
GA (weeks)	29 (2.7)	24-35.5	39.7 (1.2)	37-42	< .001^*
Birthweight (grams)	1230 (473)	482-2495	3466 (489)	2438-4422	< .001^*
Academic Scores
IQ	103 (15.3)	69-136	114 (13)	86-142	< .001^*

Demographics^b	Preterm		Full Term		p

Race, n (%)
White	49 (71)		31 (72)		.902
Sex
Male	31 (45)		21 (49)		.702
Maternal Education, n (%)
< college degree	25 (36)		21 (49)		.237

^a

Data analyzed by t-test

^b

Data analyzed by chi-square (asymptotic or exact significance: 2-sided)

^*

Significance p < .05