Human papillomavirus vaccinations at recommended ages: How a middle school-based educational and vaccination program increased uptake in the Rio Grande Valley

Figures & data

Table 1. Students’ Characteristics and HPV Vaccination Rates by Gender.

	All Students N = 1766		Females N = 884		Males N = 882
	n	%	n	%	n	%
All	1766
Females	884	50.1%	884	100.0%
Males	882	49.9%			882	100.0%
Age at HPV Vaccine Initiation
9	101	5.7%	53	6.0%	48	5.4%
10	105	5.9%	55	6.2%	50	5.7%
11	698	39.5%	375	42.4%	323	36.6%
12	539	30.5%	243	27.5%	296	33.6%
13	189	10.7%	85	9.6%	104	11.8%
14+	134	7.6%	73	8.3%	61	6.9%
HPV UTD*	1054	59.7%	546	61.8%	508	57.6%
Age at HPV UTD
Mean Age at UTD (SD)	12.6 (1.4)		12.5 (1.4)		12.6 (1.4)
Median Age at UTD (Min, Max)	12 (9, 19)		12 (9, 19)		12 (9, 18)
Days Between HPV Vaccine Doses
Mean (SD)	477.2 (398.8)		475.6 (403.8)		479.0 (393.8.8)
Median (Min, Max)	316 (150, 2855)		304 (151, 2855)		333 (150, 2843)
Received Other Vaccinations Bundled with the HPV Vaccine
No	487	27.6%	245	27.7%	242	27.4%
Yes	1279	72.4%	639	72.3%	640	72.6%
School District
PSJA ISD	827	46.8%	425	48.1%	402	45.6%
RGCCISD	844	47.8%	411	46.5%	433	49.1%
Roma ISD	91	5.2%	45	5.1%	46	5.2%
Zapata County ISD	4	0.2%	3	0.3%	1	0.1%

Note: UTD or Completion receipt of >  = 3 doses or receipt 2 doses if initiated < age 15 years, and the time between the first and last dose was at least 5 months.

Figure 1. HPV UTD status by age at initiation.

Table 2. Summary of HPV Vaccine Initiation and HPV UTD by Gender.

	All Students who Received at Least 1 HPV Dose from Vaccination Events N = 1,766				Females N = 844				Males N = 842
	Initiated HPV Vaccine		HPV UTD		Initiated HPV Vaccine		HPV UTD		Initiated HPV Vaccine		HPV UTD
	n	%	n	%	n	%	n	%	n	%	n	%
Gender
All	1766	100.0%	1054	59.7%
Females	884	50.1%	546	30.9%	884	100.0%	546	61.8%
Males	882	49.9%	508	28.8%					882	100.0%	508	57.6%
Age at Initiation
9	101	5.7%	63	3.6%	53	6.0%	36	4.1%	48	5.4%	27	3.1%
10	105	5.9%	67	3.8%	55	6.2%	34	3.8%	50	5.7%	33	3.7%
11	698	39.5%	535	30.3%	375	42.4%	293	33.1%	323	36.6%	242	27.4%
12	539	30.5%	287	16.3%	243	27.5%	135	15.3%	296	33.6%	152	17.2%
13	189	10.7%	79	4.5%	85	9.6%	34	3.8%	104	11.8%	45	5.1%
14+	134	7.6%	23	1.3%	73	8.3%	14	1.6%	61	6.9%	9	1.0%
Received ≥3 doses			195	11.0%			114	12.9%			81	9.2%

Note: UTD or Completion receipt of >  = 3 doses or receipt 2 doses if initiated < age 15 years, and the time between the first and last dose was at least 5 months.

Table 3. HPV Vaccine Completion by Age at Initiation.

	Total N = 1766	Age of Initiation ≤11 years N = 904	Age of Initiation 12+ Years N = 862
Completion Rate	1054 (59.7)	665 (73.6)	389 (45.1)
Age of Completion
Mean (SD)	12.6 (1.4)	12.1 (1.3)	13.4 (1.2)
Median (Min, Max)	12 (9, 19)	12 (9, 19)	13 (12, 18)
Days between initiation and completion
Mean (SD)	477.2 (398.8)	522.2 (432.8)	400.4 (318.9)
Median (Min, Max)	316 (150, 2855)	358 (150, 2855)	268 (153, 2016)