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. Author manuscript; available in PMC: 2018 Mar 5.
Published in final edited form as: Vaccine. 2016 Nov 18;35(1):109–117. doi: 10.1016/j.vaccine.2016.11.018

Table 2.

HPV series initiation among children 11–17 years old overall and by age group

Site 11–13 years 14–17 years Total 11–17 years
% Vaccinated % Vaccinated % Vaccinated
Total
N		 Baseline
(7/1/2013–
6/30/2014)		 Intervention
(7/1/2014–
3/31/2015)		 Total
N		 Baseline
(7/1/2013–
6/30/2014)		 Intervention
(7/1/2014–
3/31/2015)		 Total
N		 Baseline
(7/1/2013–
6/30/2014)		 Intervention
(7/1/2014–
3/31/2015)		 Number of
Intervention
Strategies
Intervention sites
  C 144 63.1 72.9 246 75.6 82.1 390 71.0 78.7 7
  D 654 28.5 42.5 1161 56.9 66.4 1815 46.7 57.7 8
  F 471 22.9 38.0 516 62.4 69.1 987 43.5 54.3 9
  A 542 44.4 56.8 721 66.1 72.3 1263 56.8 65.7 9
  I 23 47.8 52.1 43 60.4 65.1 66 56.0 60.6 10
  G 43 48.8 69.7 93 66.6 75.2 136 61.0 73.5 12
  J 18 77.7 100.0 35 100.0 100.0 53 92.4 100.0 13
  H 36 41.6 58.3 63 84.1 90.4 99 68.6 78.7 14
  E 40 60.0 80.0 93 68.8 80.6 133 66.1 80.4 15
Intervention total 1971 36.1* 49.8 2971 63.4** 71.2 4942 52.5* 62.7 7–15
Percentage point difference between baseline and intervention periods 13.7†,‡ 7.8†,‡ 10.2†
 Control sites
  P 21 47.6 57.1 65 63.0 70.7 86 59.3 67.4 1
  R 33 39.3 45.4 84 44.0 58.3 117 42.7 54.7 3
  N 410 77.5 88.2 523 85.2 89.4 933 81.8 88.9 2
  S 33 27.2 30.3 70 48.5 54.2 103 41.7 46.6 4
  Q 29 37.9 41.3 131 41.2 49.6 160 40.6 48.1 4
  T 334 44.3 58.3 579 73.7 80.6 913 62.9 72.5 7
  O 51 64.7 82.3 92 81.5 86.9 143 75.5 85.3 7
  V 87 50.5 63.2 155 65.8 68.3 242 60.3 66.5 8
  M 278 44.2 54.3 426 57.7 63.6 704 52.4 59.9 9
  U 364 51.0 57.9 557 65.8 70.1 921 60.0 65.3 10
  L 562 48.3 57.6 1035 64.1 69.7 1597 58.6 65.4 10
Control total 2202 52.9* 63.0 3717 67.0** 72.7 5919 61.8* 69.1 1–10
Percentage point difference between baseline and intervention periods 10.1† 5.7† 7.3†

Note: HPV vaccination rates are cumulative as of the end of each period.

*

P<0.001 for difference between intervention and control groups at baseline, by Chi-square test.

**

P<0.01 for difference between intervention and control groups at baseline, by Chi-square test.

†

P<0.001 difference between intervention and control groups in percentage point increases during intervention, by Chi-square test.

‡

P<0.001 for PP difference from baseline to intervention between 11–13 year olds and 14–17 year olds, by Chi-square test.