. 2016 Aug;138(2):e20152388. doi: 10.1542/peds.2015-2388

TABLE 2.

Differences in Potential Mediators as a Function of Race/Ethnicity

Variable	Total (N = 1632)	White (n = 310)	Black (n = 907)	Hispanic-Spanish (n = 268)	Hispanic-English (n = 147)
Mother’s mean age, y	25.15	29.19^a	23.82^a,b	25.93^a	23.38^c
Poor	40	15^a	49^b	40^a,b	36^a,b
Working	24	25	24	24	26
Coresident father	62	86^a	44^b	87^a	78^a
Mean total no. of children	1.93	1.71^a	197^b	2.07^a	1.87^a
Coresident grandparent	34	16^a	42^b	20^a,b,c	49^a,b
Postpartum depression	17	14	18	19	17
Smoker	16	24^a	17^b	2^c	17^b
Premature birth	14	15	14	14	18
Maternal grandmother breastfed	57	62^a	39^a	93^b	77^b
Paternal grandmother breastfed	60	63^a	43^a	91^b	76^b
Mother: “Breastfeeding best for baby”	41	51	37	46	36
WIC participant	69	30^a	75^b	89^c	76^b
Fed formula at hospital	66	39^a	76^b	68^a,b	58^a,b
Education
Less than high school	21	5^a	18^a,b	46^c	26^b,c
(High school or GED)	41	23	48	40	44
Some higher education	24	21^a	28^a	11^b	23^a
College or beyond	14	51^a	6^b	3^c	8^b
Relationship status
Single	15	6^a	22^b	6^b	9^a,b
In relationship	56	28^a	65^b	58^a,b	52^a,b
(Married)	29	66^a	13^b	36^a,b	38^c

Data are presented as the percent mean unless otherwise indicated. Means represent raw data, without imputation. Parentheses indicate reference category. Values that differ in superscripts within the same row indicate that there is a significant difference (P < .05) between racial/ethnic groups. (For example: A value with a is significantly different from values with b, c, or d in the same row but not different from other values with a in the same row.) GED, General Educational Development; WIC, Special Supplemental Nutrition Program for Women, Infants, and Children.