Prevalence of positional skull deformities in 530 premature infants with a corrected age of up to 6 months: a multicenter study

Table 1 Patient characteristics

	<32	32~34	34~37
n	137	214	179
gestational age (week)	28.4 ± 1.7	33.1 ± 0.8	35.6 ± 1.2
birth weight (g)	1328 ± 260	2129 ± 159	2571 ± 168	F = 15.694, P<0.001
gender (Male/Female)	67/70	102/112	83/96	χ² = 0.202, P = 0.904
Delivery type (natural birth/cesarean section)	79/58	116/98	94/85	χ² = 0.845, P = 0.655

ISSN: 1471-2431