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Table 2 Marginal effects of the associations between insurance-related ACA policy changes and HPV vaccine completion by sex and insurance type

From: Associations between insurance-related affordable care act policy changes with HPV vaccine completion

 

ACA no cost sharing and dependent care provisions in 2010

ACA insurance reforms in 2014

Marginal effect

(95% CI)

P-value

Wald test

P-valuee

Marginal effect

(95% CI)

P-value

Wald test

P-valuee

3-dose HPV series completion within 12 monthsa,b

 Male

     

0.05

  Private insurance

  

0.051 (0.039–0.063)

< 0.01

 

  Medicaid

  

0.034 (0.017–0.050)

< 0.01

 

 Female

  

0.3

  

0.3

  Private insurance

0.043 (0.036–0.061)

< 0.01

 

0.094 (0.082–0.107)

< 0.01

 

  Medicaid

0.057 (0.032–0.081)

< 0.01

 

0.085 (0.068–0.102)

< 0.01

 

3-dose HPV series completion within 18 monthsa,c

 Male

     

0.03

  Private insurance

  

0.060 (0.048–0.071)

< 0.01

 

  Medicaid

  

0.040 (0.022–0.058)

< 0.01

 

Female

  

0.02

  

0.35

  Private insurance

0.033 (0.014–0.052)

< 0.01

 

0.109 (0.097–0.121)

< 0.01

 

  Medicaid

0.069 (0.040–0.098)

< 0.01

 

0.100 (0.082–0.118)

< 0.01

 

2-dose HPV series completion within 12 monthsa,d

 Male

     

< 0.01

  Private insurance

  

0.018 (0.006–0.029)

< 0.01

 

  Medicaid

  

−0.026 (−0.046- -0.006)

0.01

 

Female

  

0.04

  

0.3

  Private insurance

0.094 (0.055–0.134)

< 0.01

 

0.044 (0.032–0.056)

< 0.01

 

  Medicaid

0.025 (0.005–0.046)

0.02

 

0.035 (0.015–0.054)

< 0.01

 
  1. Abbreviations: ACA, Affordable Care Act; CI, confidence interval; HPV, human papillomavirus
  2. a Models includes interaction between policy breaks, sex, and insurance type; adjusted for age group, state and year fixed effects
  3. b Recommendation (as of 2015) for females and males aged 9–26 years to receive 3-dose HPV series within 12 months after first dose
  4. c Sensitivity analysis based on recommendation (as of 2015) to extend window of series completion to 18 months after first dose
  5. d Sensitivity analysis based on 2016 recommendation to receive 2-dose HPV series within 12 months after first dose
  6. e P-values of Wald tests for the equivalence of predictive margins across insurance types