New findings from Lanzhou University: The greater the difference between day and night temperature, the higher the mortality rate for new crown patients

New studies have shown that the mortality rate of new coronary pneumonia is positively correlated with the difference between day and night temperature, and negatively associated with relative humidity. The study was carried out by a team of Professors Luo Bin of Lanzhou University’s School of Public Health and published March 18 on the preprinted platform medRxiv. The study was designed to analyze the association between mortality from neo-coronary pneumonia and weather parameters.

New findings from Lanzhou University: The greater the difference between day and night temperature, the higher the mortality rate for new crown patients

(Information from the official website of the National Health And Health Council)

According to data released by the Hubei Provincial Health and Reform Commission, from January 20 to February 29, 2020, there were 2,299 deaths from new coronary pneumonia in Wuhan, with an average of about 56 deaths per day.

The researchers collected data on daily deaths, weather and air pollutants from new coronary pneumonia in Wuhan during this period. The effects of temperature, humidity and circadian temperature difference sparingly on the daily mortality rate of neo-coronary pneumonia were studied using mathematical models.

During this time, the minimum temperature in Wuhan was 1.8 degrees Celsius, the maximum temperature was 18.7 degrees Celsius, and the temperature difference between day and night (DTR) ranged from 2 to 17.5 degrees Celsius. Air relative humidity is 59% to 97%, with an average of 83%.

The analysis found that there was a clear correlation between the mortality rate of new coronary pneumonia and the change of temperature and humidity, which were positively correlated with the difference between day and night temperature and negative lyse with relative humidity, and for every unit increased by day and night temperature (DTR), the mortality rate of new coronary pneumonia increased by 2.92%, while the increase in temperature and absolute humidity was related to the decrease in mortality.