Table of contents

  • Verso page
  • Foreword
  • Table of contents
  • Executive summary
  • 1 Introduction
  • 2 Methods
    • Hypothesis development
    • Qualitative research
    • Quantitative analysis
  • 3 Results
    • Hypothesis development
    • State legislation
    • Qualitative research
    • Univariate quantitative analysis
    • Multivariate quantitative analysis
  • 4 Discussion and recommendations
    • Identification of the factors which could influence the extent of missing values for BAC in road crash databases at national level
    • Identification of the variables most strongly associated with BAC status (known v. Missing) and BAC level
    • Estimation of the number and proportion of cases having BAC >.05 at national level taking into account the extent to which cases having missing values for BAC were likely to have BAC >.05
    • Provision of recommendations for reducing the level of missing values in existing databases and, if necessary, specification of the requirements for any new databases at national level
  • 5 references
  • Appendix 1. Information on statistics presented in the output from logistic regression analysis
    • Strength of the model
    • -2ll
    • Goodness of fit statistic
    • Model chi-square