Table 1.

Demographic information in preterm and term infants at birth at 12-month-old.

	Preterm infants						Term infants			F-value	p-value	Post hoc (p < .05)
	VP (n = 12)			MLP (n = 15)			Term (n = 25)
	M	SD	Range	M	SD	Range	M	SD	Range
Gestational age (weeks)	28.96	2.20	25.57–31.86	34.67	0.88	32.86–36	39.29	1.22	37.14–41.43	217.78	< .001	VP < MLP < FT
Birth weight (g)	1060	261	618–1640	1978	277	1381–2572	2956	366	2362–4110	148.61	< .001	VP < MLP < FT
Postnatal age (months)	14.83	0.42	14.36–15.51	13.45	0.63	12.68–15.15	12.79	0.55	11.04–14.39	56.48	< .001	VP > MLP > FT
Corrected age (months)	12.30	0.20	12.02–12.55	12.22	0.54	11.5–13.7	12.62	0.44	11.17–13.73	4.82	0.012	VP < FT, MLP < FT
SGA	2/12			3/15			1/25			1.37	0.264
Female	7/12			3/15			12/25			3.50	0.038	VP > MLP, MLP < FT

VP = very preterm; MLP = moderate-to-late preterm; SGA = small-for-gestational age.