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Table 2 Probit model of acceptability of HPV vaccine (N = 742)

From: Awareness and acceptability of human papillomavirus vaccine: an application of the instrumental variables bivariate probit model

  Coefficient (95% C.I.)
Aware of HPV vaccine 0.275 (–0.135, 0.686)
Age group   
   18-34 Reference  
   35-39 –0.185 (–0.565, 0.194)
   40-44 –0.187 (–0.558, 0.183)
   45+ –0.041 (–0.378, 0.296)
Race/ethnicity   
   Non-Hispanic White Reference  
   Non-Hispanic Black –0.396† (–0.828, 0.037)
   Hispanic –0.008 (–0.512, 0.497)
   Other non-Hispanic –0.476 (–1.212, 0.259)
Household income   
   $75,000 or more Reference  
   $50,000 - < $75,000 –0.253 (–0.673, 0.167)
   $20,000 - < $50,000 0.130 (–0.329, 0.590)
   Less than $20,000 0.206 (–0.396, 0.808)
Education   
   College graduate Reference  
   Some college 0.066 (–0.297, 0.429)
   High school graduate 0.045 (–0.386, 0.476)
   Less than high school 0.273 (–0.284, 0.830)
Having any health insurance –0.137 (–0.627, 0.353)
Having a regular health care provider 0.220 (–0.156, 0.596)
Past medical history of cancer 0.215 (–0.249, 0.679)
Family history of cancer 0.146 (–0.122, 0.414)
Self-rated health status   
   Excellent Reference  
   Very good 0.233 (–0.188, 0.655)
   Good 0.474* (0.005, 0.942)
   Fair 0.246 (–0.265, 0.757)
   Poor 0.006 (–1.038, 1.050)
Constant –0.119 (–0.938, 0.699)
  1. Notes: †p < 0.10, *p < 0.05, **p < 0.01. A set of dummy variables for survey regional division in the 2007 HINTS was included in the estimation but their coefficients are not presented here