Modelling motorcycle-related head injury trends for Thailand following the 100% motorcycle helmet use campaign using log-linear model

Mena Patummasut, Nattakorn Phewchean, Jarinratn Sirirattanapa

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The aim of this paper is to examine trends of motorcycle related head injuries in HRH Princess Maha Chakri Sirindhorn Medical Center, Nakhon Nayok province, Thailand, following the 100% Motorcycle Helmet Use campaign by using log-linear models. Since the injuries count data is overdispersion, the Poisson log-linear model is not reasonable. Consequently, the negative binomial log-linear model accounted for overdispersion is used, and it fits the data very well. The fitted model indicated the increasing trend of head injuries after the 100% Motorcycle Helmet Use campaign was lunched over the years 2011-2016. It is increasing at the rate 1.13% per month.

Original languageEnglish
Pages (from-to)30-40
Number of pages11
JournalThailand Statistician
Volume17
Issue number1
Publication statusPublished - Jan 2019
Externally publishedYes

Keywords

  • Count data
  • Negative binomial log-linear model
  • Poisson log-linear model

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