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. 2024 Feb 2;6(5):77-82.
doi: 10.46234/ccdcw2024.017.

Acute Effects of Low Temperatures and Cold Waves on Elderly Infectious Pneumonia Mortality - Jinan City, Shandong Province, China, 2014-2022

Huiyun Chang  1   2 , Mingjun Li  1 , Ying Wang  1 , Liangliang Cui  1 , Tiantian Li  3
Affiliations

Acute Effects of Low Temperatures and Cold Waves on Elderly Infectious Pneumonia Mortality - Jinan City, Shandong Province, China, 2014-2022

Huiyun Chang et al. China CDC Wkly. .

Abstract

What is already known about this topic?: The mortality rate due to pneumonia varies depending on the infectious agents present in a low- temperature environment.

What is added by this report?: This study aimed to examine the relationship between low temperatures and cold waves and the risk of mortality from infectious pneumonia in the elderly. The findings indicate a significant increase in the risk of infectious pneumonia, specifically bacterial pneumonia, during periods of low temperatures and cold waves.

What are the implications for public health practice?: This study presents compelling evidence that highlights the importance of proactive public responses to infectious pneumonia among the elderly population during periods of cold waves.

Keywords: cold wave; elderly; infectious pneumonia; time-stratified case-crossover study.

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Conflict of interest statement

No conflicts of interest.

Figures

Figure 1
Figure 1
Exposure-response curves of daily minimum temperature in relation to infectious pneumonia in Jinan City from 2014 to 2022 (November to March). (A) All pathogen pneumonia; (B) Viral pneumonia; (C) Bacterial pneumonia; (D) Other infectious pneumonia.
Figure 2
Figure 2
The lag effects of all pathogens, including viral, bacterial, and other infectious pneumonia deaths, on the elderly population under the scenario of low temperatures and cold waves in Jinan City from 2014 to 2022 (November to March). (A) All pathogen pneumonia; (B) Viral pneumonia; (C) Bacterial pneumonia; (D) Other infectious pneumonia.
Figure 3
Figure 3
Subgroup analysis of the acute effects on mortality in the elderly population due to pneumonia during the period of low temperatures and cold waves in Jinan City from 2014 to 2022 (November to March).
Figure S1
Figure S1
Sensitivity analysis of the effect on elder pneumonia death for all pathogen, viral, bacterial and other infectious pneumonia in Jinan City from 2014 to 2022 (November to March). (A) All pathogen pneumonia; (B) Viral pneumonia; (C) Bacterial pneumonia; (D) Other infectious pneumonia.
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