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Table 4 Theory of planned behavior constructs among vaccine-prescribing clinicians (n = 83)

From: Why is announcement training more effective than conversation training for introducing HPV vaccination? A theory-based investigation

  Announcement arm Conversation arm
Pre-training
M (SD)
Post-training
M (SD)
One-month follow-up
M (SD)
Pre-training
M (SD)
Post-training
M (SD)
One-month follow-up
M (SD)
Attitudes
 HPV vaccine is effective. 4.3 (0.5) 4.8 (0.4)* 4.6 (0.7) 4.7 (0.6)
 A clinician’s recommendation greatly increases HPV vaccination. 4.5 (0.7) 4.7 (0.5)* 4.3 (0.7) 4.7 (0.6)*
Subjective norms
 HPV vaccine coverage is much lower than Tdap vaccine coverage in North Carolina. 4.3 (0.8) 4.7 (0.5)* 4.3 (0.7) 4.5 (0.7)
 Most parents think HPV vaccination is important for their 11- or 12-year-olds. 2.7 (0.8) 3.6 (1.0)* 3.3 (1.0)* 2.7 (0.9) 3.7 (0.9)* 3.1 (0.9)*
Perceived behavioral controla
 When discussing HPV vaccine, I feel confident addressing parents’ concerns. 4.4 (0.6) 4.7 (0.5)* 4.8 (0.4)* 4.2 (0.7) 4.6 (0.5)* 4.4 (0.5)
 I know how to recommend HPV vaccine in a way that leads to vaccination. 3.9 (0.6) 4.6 (0.5)* 4.5 (0.6)* 3.8 (0.7) 4.6 (0.5)* 4.3 (0.5)*
Behavioral intentions
 I plan to [use/routinely use] this communication strategy to recommend HPV vaccine for my adolescent patients. 4.6 (1.0) 4.6 (0.8) 4.5 (1.0) 4.4 (0.7)
  1. Note. The 5-point response scale ranged from strongly disagree (coded as 1) to strongly agree (5)
  2. aThe items assessed self-efficacy, which is one component of perceived behavioral control
  3. *p < .05 compared to pre-training, within the trial arm
  4. p < .01 compared to the announcement arm
  5. – Item not assessed at this time point