Related Experiment Video

Updated: Jul 16, 2025

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management
06:43

Esophageal Heat Transfer for Patient Temperature Control and Targeted Temperature Management

Published on: November 21, 2017

24.4K

A study of temperature variability on admissions and deaths for cardiovascular diseases in Northwestern China

Shan Zheng1, Xiaofei Zhang2, Wenzhi Zhu3

  • 1Institute of Epidemiology and Statistics, School of Public Health, Lanzhou University, Lanzhou, 730000, China. zhengsh@lzu.edu.cn.

BMC Public Health
|September 8, 2023
PubMed

Insights

Temperature variability (TV) significantly increases cardiovascular disease (CVD) emergency visits. Daily and hourly temperature variability pose risks, especially for males and the elderly, highlighting the need for targeted prevention strategies.

Area of Science:

  • Environmental Health
  • Cardiovascular Epidemiology
  • Climate Change Impact

Background:

  • Cardiovascular diseases (CVDs) pose a significant public health burden.
  • Understanding environmental risk factors for CVDs is crucial for effective public health interventions.
  • Temperature variability (TV) is an emerging environmental stressor with potential health implications.

Purpose of the Study:

  • To investigate the association between temperature variability (TV) and cardiovascular disease (CVD) admissions and deaths.
  • To quantify the impact of daily temperature variability (DTV) and hourly temperature variability (HTV) on CVD emergency room visits.
  • To evaluate the attribution risk of TV to CVD emergency visits and identify sensitive populations.

Main Methods:

  • Utilized CVD admissions data (2013-2016) and mortality data (2013-2017) from Jinchang City.
  • Employed a distributed lag nonlinear model (DLNM) to analyze the effects of DTV and HTV on CVD events.
  • Conducted stratified analyses by age and gender, and evaluated attribution risk.

Main Results:

  • TV showed a significant positive correlation with outpatient and emergency room (O&ER) visits for CVDs.
  • A 1°C increase in DTV and HTV was associated with a 3.61% and 3.03% increase in CVD O&ER visits, respectively.
  • DTV and HTV accounted for 22.75% and 14.15% of CVD O&ER visits; males and the elderly were more susceptible, with greater impacts observed in the non-heating season.

Conclusions:

  • Temperature variability is an independent risk factor for increased CVD emergency visits.
  • Strengthening timely prevention for vulnerable groups is essential for CVD risk management.
  • These findings underscore the importance of considering environmental factors in public health strategies for CVDs.
Abstract

Keywords:
Admissions and deathsCardiovascular diseasesDistributed lag nonlinear modelTemperature variability

More Related Videos

In vitro Assessment of Myocardial Protection following Hypothermia-Preconditioning in a Human Cardiac Myocytes Model08:22

In vitro Assessment of Myocardial Protection following Hypothermia-Preconditioning in a Human Cardiac Myocytes Model

Published on: October 27, 2020

3.1K
Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions07:54

Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions

Published on: March 9, 2021

3.0K

Related Concept Videos

Factors Affecting Body Temperature01:28

Factors Affecting Body Temperature

As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may  include:
4.4K
Decreased Body Temperature01:29

Decreased Body Temperature

A decreased body temperature can occur in patients with hypothermia and frostbite. Heat loss with extended cold exposure overpowers the body's ability to create heat, resulting in hypothermia. Core temperature readings help classify hypothermia. Mild hypothermia is temperatures between 32 °C (89.6 °F) and 35°C (95 °F) and is caused by impaired thermoregulation. Moderate hypothermia is temperatures between 28 C (82.4 °F) and 32 °C (89.6 °F) caused by...
643
Responses to Heat and Cold Stress02:45

Responses to Heat and Cold Stress

Every organism has an optimum temperature range within which healthy growth and physiological functioning can occur. At the ends of this range, there will be a minimum and maximum temperature that interrupt biological processes.
13.6K
Assessing Body Temperature - Temporal Artery01:19

Assessing Body Temperature - Temporal Artery

Here is a stepwise guide to assessing the body temperature at the temporal artery using a temporal artery thermometer
Step 1: Perform hand hygiene and don a fresh pair of gloves to prevent cross-infection and ensure patient safety.
Step 2: Explain the procedure to the patient to establish trust. Clear communication establishes trust with the patient, ensures they understand what to expect, promotes cooperation, and enhances comfort during the procedure.  
Step 3: Assess the patient's...
582
Methods of reducing fever01:22

Methods of reducing fever

The signs and symptoms of fever include hot and dry skin, flushed face, thirst, muscle aches, anorexia, headache, tachycardia, tachypnea, and fatigue. Elevated body temperature is reduced using two methods: pharmacological and nonpharmacological. Proper identification and treatment of the root cause of a fever is of utmost importance.
Pharmacological Methods of Reducing Fever:
695
Requirements for Human Life01:26

Requirements for Human Life

The Earth and its atmosphere have provided humans with air, water, and food, but these are not the only requirements for survival. Humans also require a specific range of temperature and pressure that the Earth and its atmosphere provides.
Oxygen
Atmospheric air is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are susceptible to a lack of oxygen because they require a...
8.3K