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Table 2 Process measures and HPV vaccination outcomes by study arm

From: Pragmatic trial of an intervention to increase human papillomavirus vaccination in safety-net clinics

  Process measure: patient education materials provideda Process measure: provider recommended HPV vaccine Patient outcome: receipt of HPV vaccine dose at initial visit Patient outcome: completion of 3 doses at 12-month follow up
  No Yes No Yes No Yes No Yes
Study Arm Nb (%) N (%) N (%) N (%) N (%) N (%) N (%) N (%)
Usual Care (UC) Arm 92 (66.2) 47 (33.8) 82 (49.7) 83 (50.3) 112 (67.1) 55 (32.9) 137 (82.0) 30 (18.0)
Intervention Arm 15 (7.9) 174 (92.1) 20 (10.8) 166 (89.2) 106 (54.6) 88 (45.4) 170 (87.6) 24 (12.4)
Crude RRc (95% CI)d 2.72 (1.97-3.76) 1.77 (1.44-2.19) 1.38 (1.03-1.85) 0.69 (0.40-1.17)
Adjusted RRe (95% CI)d 2.88 (2.06-4.01) 1.70 (1.38-2.10) 1.18 (0.87-1.60) 0.50 (0.29-0.88)
  1. aPatient Education Materials included the intervention video and/or card in the intervention arm, or any printed materials about HPV vaccine in the usual care arm
  2. b N Number of children
  3. c RR Relative risk
  4. d CI Confidence interval
  5. e RR Relative risk adjusted for mother’s educational level and child’s age