Gender Differences in DUI Crash Injury Severity: A Partially Constrained Random-Parameter Logit Model Analysis
Bibliographic record
Abstract
Driving under the influence (DUI) has long been recognized as a major contributor to traffic accidents. However, the factors influencing the severity of crashes in DUI situations may vary significantly between genders due to physiological and psychological differences. This study analyzes DUI single-vehicle crash data from Texas to construct a random-parameter logit model that captures gender-specific differences in crash severity. A partially constrained method is employed to better identify these gender-specific factors, emphasizing the importance of separately assessing DUI behavior for males and females in traffic safety analysis. The results reveal notable gender differences in the severity of injuries from DUI crashes. A comprehensive evaluation was conducted from four perspectives: driver characteristics, vehicle features, roadway conditions, and environmental factors. Out-of-sample simulations provided additional insights, showing that even at lower blood alcohol concentration (BAC) levels, the probability of severe injury increases significantly. In conclusion, this study not only uncovers the gender-specific mechanisms behind DUI crash severity but also offers valuable empirical evidence for integrating gender considerations into future traffic safety policies and interventions.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.003 | 0.006 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".