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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