Cited by 64Climate Change and Health ImpactsAir Quality and Health ImpactsThermoregulation and physiological responses

A time series analysis of weather variables and all-cause mortality in the Kasena-Nankana Districts of Northern Ghana, 1995–2010

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Azongo, Daniel K., Awine, Timothy, Wak, George, Binka, Fred N., Rexford Oduro, Abraham·2012·Global Health Action

Abstract

INTRODUCTION: Climate and weather variability can have significant health consequences of increased morbidity and mortality. However, today the impact of climate and weather variability, and consequentially, of climate change on population health in sub-Saharan Africa is not well understood. In this study, we assessed the association of daily temperature and precipitation with daily mortality by age and sex groups in Northern Ghana. METHODS: We analysed daily mortality and weather data from 1995 to 2010. We adopted a time-series Poisson regression approach to examine the short-term association of daily mean temperature and daily mean precipitation with daily mortality. We included time factors and daily lagged weather predictors and considered autocorrelation. RESULTS: For all populations, a statistically significant association of mean daily temperature with mortality at lag days 0-1 was observed below and above the 25th (27.48°C) and 75th (30.68°C) percentiles (0.19%; 95% confidence interval CI: 0.05%, 0.21%) and (1.14%; 95% CI: 0.12%, 1.54%), respectively. We also observed a statistically significant association of mean daily temperature above 75th percentile at lag days 2-6 and lag days 7-13 (0.32%; 95% CI: 0.16%, 0.25%) and 0.31% [95% CI: 0.14%, 0.26%]), respectively. A 10 mm increase in precipitation was associated with a 1.71% (95% CI: 0.10%, 3.34.9%) increase in mortality for all ages and sex groups at lag days 2-6. Similar results were also observed at lag days 2-6 and 14-27 for males, 2.92% (95% CI: 0.80%, 5.09%) and 2.35% (95% CI: 0.28%, 4.45%). CONCLUSION: Short-term weather variability is strongly associated with mortality in Northern Ghana. The associations appear to differ among different age and sex groups. The elderly and young children were found to be more susceptible to short-term temperature-related mortality. The association of precipitation with mortality is more pronounced at the short-term for all age and sex groups and in the medium short-term among males. Reducing exposure to extreme temperature, particularly among the elderly and young children, should reduce the number of daily deaths attributable to weather-related mortality.

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  • Multiple studies in low-income and middle-income settings quantified the detrimental effect of heatwaves on child mortality rates, with some exceptions.

    “and multiple studies in low-income and middle-income settings [26][27][28] quantified the detrimental effect of heatwaves on child mortality rates, with some exceptions to this observed association.29”

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Authors
Azongo, D. K., Awine, T., Wak, G., Binka, F. N., & Rexford Oduro, A.
Affiliations
  • Navrongo Health Research Centre (GH)
  • University of Health and Allied Sciences (GH)
  • Navrongo Health Research Centre, Ghana Health Service , Navrongo, Ghana
Corresponding author
Azongo, Daniel K.
Venue
Global Health Action
Published
2012-11-23
Volume
5
Issue
1
Pages
19073
ISSN
  • 1654-9716 (ISSN-L)
  • 1654-9880
OpenAlex
W2124198991
Cited by
64
References
32
Citations by year
2026: 4 · 2025: 6 · 2024: 7 · 2023: 6 · 2022: 9 · 2021: 5 · 2020: 5 · 2019: 3 · 2018: 4 · 2017: 4 · 2016: 3 · 2015: 3 · 2014: 2 · 2013: 1 · 2012: 2
FWCI
1.77
Type
journal article
Language
en
Open access
Licence
cc-by-nc
Locations
  • Global Health Action (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
Rockefeller Foundation
Topics
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Climate Change and Health Impacts
  • Physical Sciences › Environmental Science › Health, Toxicology and Mutagenesis › Air Quality and Health Impacts
  • Health Sciences › Medicine › Physiology › Thermoregulation and physiological responses
Keywords
weather variability, all-cause mortality, temperature-mortality relationship, climate change and health, age and sex differences, Northern Ghana, sub-Saharan Africa, Poisson regression, autocorrelation, cold exposure, air pollution
MeSH terms
Adolescent, Adult, Age Factors, Child, Child, Preschool, Female, Ghana, Humans, Infant, Male, Middle Aged, Mortality, Rain, Seasons, Sex Factors, Temperature, Weather, Poisson Distribution, Young Adult

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