Temporal Instability of Factors Affecting Injury Severity in Helmet-Wearing and Non-Helmet-Wearing Motorcycle Crashes: A Random Parameter Approach with Heterogeneity in Means and Variances.

Int J Environ Res Public Health · 2022 · PMC9518049 · PMID 36078241

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extremely significantno p-value reported

Additionally, improper helmet attachment and the usage of substandard helmets are two further secondary concerns that are extremely significant in LMICs [ 9 ].

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