Table 1.

Parent and child demographic characteristics

	Non-consenters N=62	Consenters N=58	P value
Child’s age (yr) – Median (Min, Max)	1.00 (0, 5)	1.50 (0, 7)	0.048
Parent’s age (yr) – Median (Min, Max)	33.00 (20, 43)	31.00 (22, 46)	0.017
	Number (%)
Child’s sex
Male	3 (4.8)	3 (5.2)	1.0
Female	59 (95.2)	55 (94.8)
Parent relationship to child
Mother	58 (93.5)	52 (89.7)	0.520
Father	4 (6.5)	6 (10.3)
Hispanic
Yes	2 (3.2)	3 (5.2)	0.672
No	60 (96.8)	55 (94.8)
Race
American Indian	0 (0)	1 (1.7)	1.0
Asian	0 (0)	1 (1.7)
Black or African American	1 (1.6)	3 (5.2)
Native Hawaiian or other Pacific Islander	0 (0)	0 (0)
White	60 (98.4)	57 (98.3)
Preferred not to answer	1 (1.6)	0 (0)
Level of education
≤ High school or GED or some college/technical	7 (11.3)	29 (50)	<0.001
≥ College graduate	55 (88.7)	29 (50)
Health insurance status
Private	56 (90.3)	36 (62.1)	<0.001
Public	6 (9.7)	21 (36.2)
None	0 (0)	1 (1.7)
English as first language
Yes	60 (96.8)	57 (98.3)	1.0
No	2 (3.2)	1 (1.7)
If no, was language a problem for you to understand the study?
Yes	0	0
No	2	1

^*Number indicate survey question;

^†Influence of benefit to other children on decision to participate;

^§Chi square, Fisher’s exact test, or Mann-Whitney

^†Coding was reversed for items 14, 18, 29 and 39 for analysis and presentation of results