Table 2 General characteristics of each developmental group

Number

164

35

58

Gender, n (%)

Males

149 (91 %)

22 (63 %)

46 (79 %)

Females

15 (9 %)

13 (37 %)

12 (21 %)

Maternal education, n (%)

Less than High School or High School

Degree

24 (15 %)

11 (31 %)

15 (26 %)

Some College or Vocational School

68 (41 %)

14 (43 %)

12 (21 %)

Bachelor’s Degree or

Graduate/Professional Degree

72 (44 %)

23 (26 %)

31 (53 %)

Average maternal age (years)

31

30

31

Birth place of mother, n (%)

USA

124 (75 %)

23 (66 %)

44 (76 %)

Outside USA

40 (25 %)

12 (34 %)

14 (24 %)

Child’s race/ethnicity

White (non-Latino)

78 (47 %)

11 (31 %)

25 (43 %)

Latino

52 (32 %)

17 (49 %)

22 (38 %)

Other

34 (21 %)

7 (20 %)

11 (19 %)

Payment method for delivery, n (%)

Public

31 (19 %)

12 (34 %)

9 (16 %)

Private

133 (81 %)

23 (66 %)

49 (84 %)