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