Table 2.

Difference between low birthweight (LBW) and non-LBW groups in hospital-related variables (N=255,467).

Hospital-related variables			All records							LBW versus non-LBW, odds ratio (95% CI)
			LBW group (n=23,019), n (%)		Non-LBW group (n=232,448), n (%)		P value
Hospital perinatal care level
	Basic care	1715 (7.45)		33,183 (14.28)		<.001		0.45 (0.38-0.55)
	Specialty care	8139 (35.36)		110,373 (47.48)		<.001		0.65 (0.54-0.78)
	Subspecialty care	12,657 (54.99)		86,188 (37.08)		<.001		1.29 (1.07-1.55)
	Complex care	380 (1.65)		1579 (0.68)		<.001		2.12 (1.71-2.62)
	Unknown	128 (0.56)		1125 (0.48)		<.001		—a
Hospital baby-friendly status
	Yes	12,371 (53.74)		93,883 (40.39)		<.001		1.72 (1.67-1.76)
	No	10,648 (46.26)		138,565 (59.61)		<.001		—

^aReference group for odds ratio.