Table 1. Characteristics of the parents and guardians of the girls who agreed to participate in the vaccination program according to school type (n = 1,389).

Characteristic	Valid cases (*)	Description	Overall		Private school		Public school		P value
			N	(%)	N	(%)	N	(%)
Guardian who gave authorization	1,182 (85.1%)	Mother/Father	1,073	(90.8%)	239	(94.8%)	834	(89.7%)	0.020
		Grandparents	48	(4.1%)	9	(3.6%)	39	(4.2%)
		Aunt/Uncle	35	(3.0%)	4	(1.6%)	31	(3.3%)
		Other	26	(2.2%)	0	(0.0%)	26	(2.8%)
Age (years-old)	1,088 (78.3%)	Mean (SD)	38.1	(7.9)	39.8	(7.3)	37.7	(8.0)	<0.001
Family income (montly)	1,187 (85.5%)	≤US $250	268	(22.6%)	7	(2.8%)	261	(27.8%)	<0.001
		US $201–500	319	(26.9%)	21	(8.5%)	298	(31.7%)
		US $501–1,000	368	(31.0%)	67	(27.0%)	301	(32.1%)
		>US $1,000	232	(19.5%)	153	(61.7%)	79	(8.4%)
Education (years of study)	1,203 (86.6%)	0–4 years	265	(22.0%)	5	(2.0%)	260	(27.3%)	<0.001
		5–8 years	236	(19.6%)	15	(6.0%)	221	(23.2%)
		9–11 years	484	(40.3%)	111	(44.6%)	373	(39.1%)
		>11 years	218	(18.1%)	118	(47.4%)	100	(10.5%)
Religion	1,209 (87.0%)	None	41	(3.4%)	5	(2.0%)	36	(3.7%)	0.027
		Catholic	793	(65.6%)	180	(72.6%)	613	(63.8%)
		Non-catholic	375	(31.0%)	63	(25.4%)	312	(32.5%)
Race (skin color)	1,169 (84.2%)	White	649	(55.5%)	201	(82.4%)	448	(48.4%)	<0.001
		Non-white	520	(44.5%)	43	(17.6%)	477	(51.6%)
Had you heard about the HPV vaccine?	1,170 (84.2%)	No	646	(55.2%)	111	(46.6%)	535	(57.4%)	0.003
		Yes	524	(44.8%)	127	(53.4%)	397	(42.6%)
Area	1,389 (100.0%)	Urban	1,365	(98.3%)	276	(100.0%)	1,089	(97.8%)	0.008
		Rural	24	(1.7%)	0	(0.0%)	24	(2.2%)

(*) Cases in which information was available for 1,389 parents and guardians who agreed to participate in the study.