Coal-mine fire-related fine particulate matter and medical-service utilization in Australia: a time-series analysis from the Hazelwood Health Study

Amanda L Johnson, Caroline X Gao, Martine Dennekamp, Grant J Williamson, Matthew TC Carroll, Christina Dimitriadis, Joanna F Dipnall, Jillian F Ikin, Fay H Johnston, Alexander C McFarlane, Malcolm R Sim, Dion A Stub, Michael J Abramson, Yuming Guo

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Background
This study assessed the association between coal-mine-fire-related fine particulate matter (PM2.5) and medical-service utilization, following a 6-week coal-mine fire in Australia, in 2014. Areas in the immediate vicinity of the mine experienced hourly mine-fire-related PM2.5 concentrations of up to 3700 μg/m3.

Methods
Data on medical-service utilization were collected from the Medicare Benefits Schedule—a national database of payment for medical services. PM2.5 concentrations were modelled using atmospheric chemical transport modelling. Quasi-Poisson interrupted distributed lag time-series analysis examined the association between daily mine-fire-related PM2.5 concentrations and medical-service utilization, including General Practitioner (GP) consultations and respiratory, cardiovascular and mental health services. Confounders included seasonality, long-term trend, day of the week, maximum daily temperature and public holidays. Gender and age stratification were conducted.

Results
A 10-μg/m3 increase in PM2.5 was associated with an increased relative risk of service usage for all long and short GP consultations [11% (95% confidence interval: 7 to 15%)] and respiratory services [22% (4 to 43%)] in both men and women. Sex stratification found an increased relative risk in mental health consultations in men [32% (2 to 72%)] but not women. No associations were found for cardiovascular services in men or women.

Conclusions
Coal-mine-fire-related PM2.5 exposure was associated with increased use of medical services for GP consultations and respiratory services in men and women and mental health consultations in men. These findings can inform the development of future public-health-policy responses in the event of major air-pollution episodes.
Original languageEnglish
Number of pages14
JournalInternational Journal of Epidemiology
DOIs
Publication statusAccepted/In press - 25 Oct 2019

Keywords

  • Hazelwood mine fire
  • Particulate matter (PM)
  • health service utilization

Cite this

@article{7e72dfe521fe453a820dc04a41a66850,
title = "Coal-mine fire-related fine particulate matter and medical-service utilization in Australia: a time-series analysis from the Hazelwood Health Study",
abstract = "BackgroundThis study assessed the association between coal-mine-fire-related fine particulate matter (PM2.5) and medical-service utilization, following a 6-week coal-mine fire in Australia, in 2014. Areas in the immediate vicinity of the mine experienced hourly mine-fire-related PM2.5 concentrations of up to 3700 μg/m3.MethodsData on medical-service utilization were collected from the Medicare Benefits Schedule—a national database of payment for medical services. PM2.5 concentrations were modelled using atmospheric chemical transport modelling. Quasi-Poisson interrupted distributed lag time-series analysis examined the association between daily mine-fire-related PM2.5 concentrations and medical-service utilization, including General Practitioner (GP) consultations and respiratory, cardiovascular and mental health services. Confounders included seasonality, long-term trend, day of the week, maximum daily temperature and public holidays. Gender and age stratification were conducted.ResultsA 10-μg/m3 increase in PM2.5 was associated with an increased relative risk of service usage for all long and short GP consultations [11{\%} (95{\%} confidence interval: 7 to 15{\%})] and respiratory services [22{\%} (4 to 43{\%})] in both men and women. Sex stratification found an increased relative risk in mental health consultations in men [32{\%} (2 to 72{\%})] but not women. No associations were found for cardiovascular services in men or women.ConclusionsCoal-mine-fire-related PM2.5 exposure was associated with increased use of medical services for GP consultations and respiratory services in men and women and mental health consultations in men. These findings can inform the development of future public-health-policy responses in the event of major air-pollution episodes.",
keywords = "Hazelwood mine fire, Particulate matter (PM), health service utilization",
author = "Johnson, {Amanda L} and Gao, {Caroline X} and Martine Dennekamp and Williamson, {Grant J} and Carroll, {Matthew TC} and Christina Dimitriadis and Dipnall, {Joanna F} and Ikin, {Jillian F} and Johnston, {Fay H} and McFarlane, {Alexander C} and Sim, {Malcolm R} and Stub, {Dion A} and Abramson, {Michael J} and Yuming Guo",
year = "2019",
month = "10",
day = "25",
doi = "10.1093/ije/dyz219",
language = "English",
journal = "International Journal of Epidemiology",
issn = "0300-5771",
publisher = "Oxford University Press",

}

Coal-mine fire-related fine particulate matter and medical-service utilization in Australia : a time-series analysis from the Hazelwood Health Study. / Johnson, Amanda L ; Gao, Caroline X; Dennekamp, Martine; Williamson, Grant J; Carroll, Matthew TC; Dimitriadis, Christina; Dipnall, Joanna F; Ikin, Jillian F; Johnston, Fay H; McFarlane, Alexander C; Sim, Malcolm R; Stub, Dion A; Abramson, Michael J; Guo, Yuming.

In: International Journal of Epidemiology, 25.10.2019.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Coal-mine fire-related fine particulate matter and medical-service utilization in Australia

T2 - a time-series analysis from the Hazelwood Health Study

AU - Johnson, Amanda L

AU - Gao, Caroline X

AU - Dennekamp, Martine

AU - Williamson, Grant J

AU - Carroll, Matthew TC

AU - Dimitriadis, Christina

AU - Dipnall, Joanna F

AU - Ikin, Jillian F

AU - Johnston, Fay H

AU - McFarlane, Alexander C

AU - Sim, Malcolm R

AU - Stub, Dion A

AU - Abramson, Michael J

AU - Guo, Yuming

PY - 2019/10/25

Y1 - 2019/10/25

N2 - BackgroundThis study assessed the association between coal-mine-fire-related fine particulate matter (PM2.5) and medical-service utilization, following a 6-week coal-mine fire in Australia, in 2014. Areas in the immediate vicinity of the mine experienced hourly mine-fire-related PM2.5 concentrations of up to 3700 μg/m3.MethodsData on medical-service utilization were collected from the Medicare Benefits Schedule—a national database of payment for medical services. PM2.5 concentrations were modelled using atmospheric chemical transport modelling. Quasi-Poisson interrupted distributed lag time-series analysis examined the association between daily mine-fire-related PM2.5 concentrations and medical-service utilization, including General Practitioner (GP) consultations and respiratory, cardiovascular and mental health services. Confounders included seasonality, long-term trend, day of the week, maximum daily temperature and public holidays. Gender and age stratification were conducted.ResultsA 10-μg/m3 increase in PM2.5 was associated with an increased relative risk of service usage for all long and short GP consultations [11% (95% confidence interval: 7 to 15%)] and respiratory services [22% (4 to 43%)] in both men and women. Sex stratification found an increased relative risk in mental health consultations in men [32% (2 to 72%)] but not women. No associations were found for cardiovascular services in men or women.ConclusionsCoal-mine-fire-related PM2.5 exposure was associated with increased use of medical services for GP consultations and respiratory services in men and women and mental health consultations in men. These findings can inform the development of future public-health-policy responses in the event of major air-pollution episodes.

AB - BackgroundThis study assessed the association between coal-mine-fire-related fine particulate matter (PM2.5) and medical-service utilization, following a 6-week coal-mine fire in Australia, in 2014. Areas in the immediate vicinity of the mine experienced hourly mine-fire-related PM2.5 concentrations of up to 3700 μg/m3.MethodsData on medical-service utilization were collected from the Medicare Benefits Schedule—a national database of payment for medical services. PM2.5 concentrations were modelled using atmospheric chemical transport modelling. Quasi-Poisson interrupted distributed lag time-series analysis examined the association between daily mine-fire-related PM2.5 concentrations and medical-service utilization, including General Practitioner (GP) consultations and respiratory, cardiovascular and mental health services. Confounders included seasonality, long-term trend, day of the week, maximum daily temperature and public holidays. Gender and age stratification were conducted.ResultsA 10-μg/m3 increase in PM2.5 was associated with an increased relative risk of service usage for all long and short GP consultations [11% (95% confidence interval: 7 to 15%)] and respiratory services [22% (4 to 43%)] in both men and women. Sex stratification found an increased relative risk in mental health consultations in men [32% (2 to 72%)] but not women. No associations were found for cardiovascular services in men or women.ConclusionsCoal-mine-fire-related PM2.5 exposure was associated with increased use of medical services for GP consultations and respiratory services in men and women and mental health consultations in men. These findings can inform the development of future public-health-policy responses in the event of major air-pollution episodes.

KW - Hazelwood mine fire

KW - Particulate matter (PM)

KW - health service utilization

U2 - 10.1093/ije/dyz219

DO - 10.1093/ije/dyz219

M3 - Article

JO - International Journal of Epidemiology

JF - International Journal of Epidemiology

SN - 0300-5771

ER -