The quality of life after motorcycle traffic injuries: a cohort study in northwest of Iran
DOI: 10.21203/rs.3.rs-15569/v1
archive: archived pipeline: cataloged verified
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Summary
This cohort study investigates the quality of life (QOL) of motorcyclists injured in traffic accidents in northwest Iran, addressing a gap in literature regarding QOL outcomes in developing countries. The research aims to assess QOL changes up to three months post-accident and identify associated factors. The study is motivated by the high burden of road traffic injuries and the frequent neglect of psychosocial consequences compared to physical injuries. The study recruited 190 injured motorcyclists admitted to two referral hospitals in Tabriz between June 2018 and January 2019. Baseline data, including demographic, crash-related, and injury severity information, were collected via face-to-face interviews. Follow-up assessments were conducted via telephone one and three months after the accident, with 171 participants (90%) completing the three-month survey. QOL was measured using the EQ-5D-3L questionnaire, which scores five health dimensions on a scale of 1 to 3, where higher scores indicate lower QOL. Statistical analysis employed Generalized Estimating Equation (GEE) models to determine factors affecting QOL, accounting for longitudinal data correlations. Results indicated that QOL improved significantly from one month to three months post-accident, with mean scores decreasing from 2.15 to 1.78 (p<0.001), reflecting better health status. Multivariable analysis identified specific predictors of lower QOL at three months: injuries to the pelvis (coefficient 0.29, p=0.001) and knee (coefficient 0.26, p=0.001), and accidents occurring in rainy weather (coefficient 0.33, p=0.001). Conversely, involvement with another vehicle was associated with better QOL (coefficient -0.26, p=0.002). Demographic factors such as age, sex, and education level showed no significant association with QOL outcomes in this cohort. The findings suggest that while QOL improves within three months, it remains lower than general population norms. The study highlights the need for extended multi-year cohort studies to understand long-term recovery trajectories. It recommends targeted interventions for high-risk groups, particularly those with lower limb injuries or psychological issues like PTSD, including social, psychological, and financial support. Policy implications include enhancing motorcycle safety measures, such as helmet standards and separate road infrastructure, to mitigate the severe injury patterns observed in motorcyclists.
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| Stage | Outcome | Tool | Model | Prompt | Attempts | Completed |
|---|---|---|---|---|---|---|
| discover | success | Crossref | — | — | 1 | 2026-06-24 |
| archive | success | canonical_url | — | — | 1 | 2026-06-26 |
| extract | success | cached | — | — | 2 | 2026-06-26 |
| clean | success | clean | — | — | 1 | 2026-06-25 |
| chunk | success | chunk | — | — | 1 | 2026-06-25 |
| embed | success | embed | Qwen/Qwen3-Embedding-8B | — | 1 | 2026-06-25 |
| promote | success | — | — | — | 1 | 2026-06-24 |
| summarize | success | llm | qwen3.6-27b-prismaquant | summ-v5 | 1 | 2026-06-26 |
| tag | success | vector_similarity | — | — | 6 | 2026-06-25 |
| verify | success | — | — | — | 1 | 2026-06-26 |
Summary generated by qwen3.6-27b-prismaquant on 2026-06-26; verification: verified.
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