Recruitment results among families contacted for an obesity prevention intervention: the Obesity Prevention Tailored for Health Study

Table 1 Demographic characteristics of parents and children by recruitment outcomes

	Accepted^aand randomized (N = 361)		Accepted^aand not randomized (N = 402)		Refused (N = 1,360)		Unable to reach (N = 2,385)		Total (N = 4,508)^b
	n	(%)	n	(%)	n	(%)	n	(%)	n	(%)
*Parents*
Gender***
Female	216	(60.0)	237	(59.0)	649	(47.7)	1076	(45.1)	2178	(48.0)
Male	145	(40.0)	165	(41.0)	711	(52.3)	1309	(54.9)	2330	(52.0)
Age (years) at study contact***
Mean (SD)	39.9	(6.3)	40.1	(6.8)	41.0	(7.6)	39.5	(6.7)	40.0	(7.0)
Race/ethnicity***
White non-Hispanic	42	(11.6)	24	(6.0)	131	(9.6)	151	(6.3)	348	(7.7)
African American/Black	42	(11.6)	74	(18.4)	191	(14.1)	369	(15.5)	676	(15.0)
Hispanic	235	(65.1)	255	(63.4)	741	(54.5)	1396	(58.5)	2627	(58.3)
Other non-Hispanic	21	(5.8)	19	(4.7)	158	(11.6)	197	(8.3)	395	(8.8)
Unknown	21	(5.8)	30	(7.5)	138	(10.2)	272	(11.4)	461	(10.2)
Missing	0	(0.0)	0	(0.0)	1	(0.1)	0	(0.0)	1	(0.0)
Education***
≤ High school	187	(51.8)	200	(49.8)	770	(56.6)	1157	(48.5)	2314	(49.7)
> High school	174	(48.2)	202	(50.3)	590	(43.4)	1228	(51.5)	2194	(51.3)
Median household income***
Median (interquartile range)	$56,574 ($29,962)		$54,130 ($27,067)		$58,761 ($26,555)		$54,490 ($26,779)		$55,497 ($27,092)
*Child*
Gender
Female	177	(49.0)	197	(49.0)	700	(51.5)	1176	(49.3)	2250	(49.9)
Male	184	(51.0)	205	(51.0)	659	(48.5)	1209	(50.7)	2257	(50.1)
Age (years) at study contact
Mean (SD)	10.8	(0.8)	10.8	(0.8)	10.8	(0.9)	10.8	(0.8)	10.8	(0.8)

^aParents from Kaiser Permanente Southern California who accepted offer of study participation and gave verbal consent to disclose contact information to Claremont Graduate University for consent and randomization. ^bExcludes 222 families not eligible for participation. ***P < 0.0001 testing for differences among the 4 groups.

ISSN: 1745-6215