Seat belts : their use among drivers killed in fatal crashes in Virginia.
archive: archived pipeline: cataloged verified
Get this paper ↗ (full text — opens at the source; we link to it, we don't host it)
Summary
This 1974 study by Lynn and Simpson investigates the relationship between seat belt usage and driver fatalities in Virginia, aiming to determine if seat belts reduce the incidence of fatal injuries. The research was motivated by ongoing public health controversy regarding the efficacy of seat belts and the lack of mandatory usage legislation in Virginia, despite evidence from other jurisdictions suggesting significant safety benefits. The primary objective was to examine whether seat belt users were underrepresented among drivers killed in fatal crashes compared to the general driving population. The methodology involved a retrospective analysis of SR300 Accident Report forms and corresponding Medical Examiner’s reports for fatal crashes occurring in Virginia during fiscal year 1973 (July 1, 1972, to June 30, 1973). The study focused on 317 cases where the driver’s death was directly related to the accident and seat belts were installed in the vehicle. Seat belt usage status was verified for all 317 fatally injured drivers. To control for confounding variables, the researchers compared seat belt users and nonusers across 32 demographic and accident-related variables, including driver age, sex, race, driving experience, vehicle characteristics, crash speed, and environmental conditions. Additionally, the fatality data was compared against three estimates of seat belt usage in the general population: a 1974 Virginia survey (24.04% usage), a 1968 North Carolina study (32.9% usage), and a 1973 Ohio study (28.0% usage). The results indicated that only 26 of the 317 fatally injured drivers (8.2%) were wearing seat belts, while 291 (91.8%) were not. This usage rate among fatalities was significantly lower than the estimated usage rates in the general driving populations of Virginia, North Carolina, and Ohio. Statistical analysis revealed that these differences were significant at the p < 0.001 level, meaning there was less than a one-in-1,000 probability that the disparity was due to chance. Crucially, the comparison of the 32 demographic and accident variables showed no significant differences between the user and nonuser groups. This indicated that the two groups were comparable in terms of risk factors such as age, vehicle type, and crash severity, isolating seat belt usage as the distinguishing factor. Supporting data from interstate commercial carriers and Ohio fatalities further corroborated that nonusers were overrepresented in fatal outcomes. The study concludes that seat belt users were significantly underrepresented among drivers killed in fatal crashes in Virginia during fiscal year 1973. Because no other demographic or accident-related variables explained this disparity, the authors attribute the underrepresentation directly to the protective effect of seat belts. Consequently, the research provides empirical evidence that seat belt utilization reduced the incidence of fatal injuries among Virginia drivers, supporting the argument for increased usage and potential mandatory legislation.
Key finding
Seat belt users were significantly underrepresented among fatally injured drivers in Virginia, with only 8.2% of fatalities involving belt users compared to a 24.04% usage rate in the general driving population.
Methodology
dataset
Sample size: 317
Provenance
The full processing record for this entry. Every stage of this paper's journey through the pipeline is logged — what ran, with which tool and model, how many attempts it took, and when it last completed. Discovered via bulk_ingest_rosap on 2026-05-23 (6 acquisition events logged).
| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | rosap | — | — | 2 | 2026-05-23 |
| archive | success | — | — | — | 1 | 2026-05-23 |
| extract | success | cached | — | — | 2 | 2026-06-10 |
| clean | success | — | — | — | 1 | 2026-06-01 |
| chunk | success | — | — | — | 1 | 2026-06-01 |
| embed | success | — | — | — | 1 | 2026-06-02 |
| enrich | success | — | — | — | 1 | 2026-05-23 |
| promote | success | — | — | — | 1 | 2026-05-23 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 3 | 2026-06-10 |
| tag | success | vector_similarity | — | — | 24 | 2026-06-11 |
| verify | success | — | — | — | 2 | 2026-06-10 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-10; verification: verified.
Topics
Ranked by relevance to this paper. Hover a topic for its definition.
Information type
What kind of knowledge this paper contributes, grouped by family — independent of topic (what it is about) and method (how it was studied).
- Empirical Findings: observational prevalence, crash risk outcomes