Table.

Adjusted Odds Ratios for Usually Bed-Sharing for 1993–2010 (N=18986)

Variable	Value	Total	Usually share	Usually share ORs	Usually share Adj. ORs
Mother's Age	LESS THAN 20	910 (4.8)	179 (19.8)	2.2 (1.9; 2.7)*	1.2 (1.0; 1.6)
	20 TO 29	9067 (48)	1049 (11.6)	1.2 (1.1; 1.3)*	1.0 (0.9; 1.1)
	30 OR MORE	8925 (47.2)	891 (10)
Mother's Education	LESS THAN HS	1051 (5.5)	198 (19)	2.31 (2.0; 2.7)*	1.4 (1.1; 1.8)*
	HS/SOME COLLEGE	9299 (49.1)	1136 (12.2)	1.38 (1.3; 1.52)*	1.1 (1; 1.3)
	COLLEGE AND/OR MORE	8588 (45.3)	789 (9.2)
Mother's Race	OTHER	895 (4.7)	183 (20.6)	2.63 (2.2; 3.1)*	2.5 (2.0; 3.0)*
	HISPANIC	1160 (6.1)	178 (15.4)	1.85 (1.6; 2.2)*	1.3 (1.1; 1.6)*
	BLACK	1174 (6.2)	355 (30.3)	4.42 (3.9; 5.1)*	3.5 (3.0; 4.1)*
	WHITE	15757 (83)	1412 (9)
First Child	NO	9678 (51.9)	1095 (11.3)	1.1 (1.0; 1.2)	1.1 (1.0; 1.2)
	YES	8962 (48.1)	963 (10.8)
US Region	WEST	2811 (14.8)	396 (14.1)	1.7 (1.5; 2.0*	1.6 (1.4; 1.9)*
	NEW ENGLAND	1033 (5.4)	91 (8.8)	1.0 (0.8; 1.3)	1.1 (0.9; 1.4)
	MID-ATLANTIC	2582 (13.6)	184 (7.1)	0.8 (0.7; 1.0)*	0.8 (0.6; 0.9)*
	SOUTH	6651 (35)	943 (14.2)	1.7 (1.6; 1.9)*	1.5 (1.3; 1.7)*
	MIDWEST	5909 (31.1)	514 (8.7)
Household Income	LESS THAN $20,000	2628 (14.6)	471 (18)	2.1 (1.9; 2.5)*	1.7 (1.4; 2.0)*
	20,000 TO $50,000	6699 (37.3)	770 (11.5)	1.3 (1.2; 1.4)*	1.3 (1.1; 1.5)*
	$50,000 OR MORE	8619 (48)	785 (9.1)
Infant's Age	LESS THAN 8 WEEKS	1443 (7.8)	197 (13.7)	1.4 (1.2; 1.6)*	1.5 (1.2; 1.7)*
	8 TO 15 WEEKS	5469 (29.7)	673 (12.3)	1.2 (1.1; 1.4)*	1.3 (1.2; 1.5)*
	16 WEEKS OR MORE	11506 (62.5)	1182 (10.3)
Prematurity (<37 weeks)	YES	2175 (11.5)	329 (15.2)	1.5 (1.3; 1.7)*	1.4 (1.2; 1.6)*
	NO	16757 (88.5)	1791 (10.7)

^*95% CIs do not include 1.00 [reference value]

All data adjusted for year of the study