Air temperature and the incidence of fall-related hip fracture hospitalisations in older people

Turner, RM; Hayen, A; Dunsmuir, WTM; Finch, CF

Air temperature and the incidence of fall-related hip fracture hospitalisations in older people

Turner, RM Hayen, A

Dunsmuir, WTM Finch, CF

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Publication Type:: Journal Article
Citation:: Osteoporosis International, 2011, 22 (4), pp. 1183 - 1189
Issue Date:: 2011-04-01

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Field	Value	Language
dc.contributor.author	Turner, RM	en_US
dc.contributor.author	Hayen, A https://orcid.org/0000-0003-4046-8030	en_US
dc.contributor.author	Dunsmuir, WTM	en_US
dc.contributor.author	Finch, CF	en_US
dc.date.available	2010-04-19	en_US
dc.date.issued	2011-04-01	en_US
dc.identifier.citation	Osteoporosis International, 2011, 22 (4), pp. 1183 - 1189	en_US
dc.identifier.issn	0937-941X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/116396
dc.description.abstract	Summary: Observation-driven Poisson regression models were used to investigate mean daily air temperature and fall-related hip fracture hospitalisations. After adjustment for season, day-of-week effects, long-term trend and autocorrelation, hip fracture rates are higher in both males and females aged 75+ years when there is a lower air temperature. Introduction: This study investigated whether there was an association between fall-related hip fracture hospitalisations and air temperature at a day-to-day level, after accounting for seasonal trend and autocorrelation. Methods: Observation-driven Poisson regression models were used to investigate mean daily air temperature and fall-related hip fracture hospitalisations for the period 1 July 1998 to 31 December 2004, inclusive, in the Sydney region of New South Wales, Australia, which has a population of 4 million people. Results: Lower daily air temperature was significantly associated with higher fall-related hip fracture hospitalisations in 75+-year-olds: men aged 75-84 years, rate ratio (RR) for a 1°C increase in temperature of 0.98 with 95% confidence interval (0.96, 0.99), men 85+ years RR=0.98 (0.96, 1.00), women 75-84 years RR=0.99 (0.98, 1.00), women 85+ years RR=0.98 (0.97, 0.99). Moreover, there were fewer hospitalisations on weekends compared to weekdays ranging from RR=0.81 (0.73, 0.90) in women aged 65-74 years to RR=0.89 (0.80, 0.98) in men aged 85+ years. Conclusions: After adjustment for season, day-of-week effects, long-term trend and autocorrelation, fall-related hip fracture hospitalisation rates are higher in both males and females aged 75+ years when there is a lower air temperature. © 2010 International Osteoporosis Foundation and National Osteoporosis Foundation.	en_US
dc.relation.ispartof	Osteoporosis International	en_US
dc.relation.isbasedon	10.1007/s00198-010-1306-2	en_US
dc.subject.classification	Endocrinology & Metabolism	en_US
dc.subject.mesh	Humans	en_US
dc.subject.mesh	Hip Fractures	en_US
dc.subject.mesh	Hospitalization	en_US
dc.subject.mesh	Incidence	en_US
dc.subject.mesh	Temperature	en_US
dc.subject.mesh	Accidental Falls	en_US
dc.subject.mesh	Age Distribution	en_US
dc.subject.mesh	Sex Distribution	en_US
dc.subject.mesh	Aged	en_US
dc.subject.mesh	Aged, 80 and over	en_US
dc.subject.mesh	New South Wales	en_US
dc.subject.mesh	Female	en_US
dc.subject.mesh	Male	en_US
dc.subject.mesh	Cold Temperature	en_US
dc.title	Air temperature and the incidence of fall-related hip fracture hospitalisations in older people	en_US
dc.type	Journal Article
utslib.citation.volume	4	en_US
utslib.citation.volume	22	en_US
utslib.for	110399 Clinical Sciences not elsewhere classified	en_US
utslib.for	0903 Biomedical Engineering	en_US
utslib.for	1103 Clinical Sciences	en_US
utslib.for	1117 Public Health and Health Services	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Health
pubs.organisational-group	/University of Technology Sydney/Faculty of Health/Public Health
utslib.copyright.status	closed_access
pubs.issue	4	en_US
pubs.publication-status	Published	en_US
pubs.volume	22	en_US

Abstract:

Summary: Observation-driven Poisson regression models were used to investigate mean daily air temperature and fall-related hip fracture hospitalisations. After adjustment for season, day-of-week effects, long-term trend and autocorrelation, hip fracture rates are higher in both males and females aged 75+ years when there is a lower air temperature. Introduction: This study investigated whether there was an association between fall-related hip fracture hospitalisations and air temperature at a day-to-day level, after accounting for seasonal trend and autocorrelation. Methods: Observation-driven Poisson regression models were used to investigate mean daily air temperature and fall-related hip fracture hospitalisations for the period 1 July 1998 to 31 December 2004, inclusive, in the Sydney region of New South Wales, Australia, which has a population of 4 million people. Results: Lower daily air temperature was significantly associated with higher fall-related hip fracture hospitalisations in 75+-year-olds: men aged 75-84 years, rate ratio (RR) for a 1°C increase in temperature of 0.98 with 95% confidence interval (0.96, 0.99), men 85+ years RR=0.98 (0.96, 1.00), women 75-84 years RR=0.99 (0.98, 1.00), women 85+ years RR=0.98 (0.97, 0.99). Moreover, there were fewer hospitalisations on weekends compared to weekdays ranging from RR=0.81 (0.73, 0.90) in women aged 65-74 years to RR=0.89 (0.80, 0.98) in men aged 85+ years. Conclusions: After adjustment for season, day-of-week effects, long-term trend and autocorrelation, fall-related hip fracture hospitalisation rates are higher in both males and females aged 75+ years when there is a lower air temperature. © 2010 International Osteoporosis Foundation and National Osteoporosis Foundation.

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http://hdl.handle.net/10453/116396