Summer temperature and spatial variability of all-cause mortality in Surat city, India

Rathi, Satyajeet S.; Desai, VK; Jariwala, P; Desai, H; Naik, Asif Ahmad; Joseph, Aley

doi:10.4103/0970-0218.205216

Cited by 18 publications

(15 citation statements)

References 10 publications

(10 reference statements)

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“…There is a significant increase in the risk of all-cause mortality, with maximum temperature rise as evident from other studies (Harlan et al, 2014; Rathi et al, 2017; Rocklov et al, 2014; Son et al, 2012). The high HI values tend to be well associated with mortality from all causes, which is supported by Desai et al and Monteiro et al’s study (Desai et al, 2015b; Monteiro et al, 2013).…”

Section: Discussionsupporting

confidence: 61%

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Summer Temperature and All-cause Mortality from 2006 to 2015 for Smart City Jaipur, India

Rathi

Sodani

Joshi

2021

Journal of Health Management

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A considerable association between temperature and all-cause mortality has been documented in various studies. Further insights can be obtained from studying the impact of temperature and heat index (HI) for Jaipur city’s all-cause mortality. The objective of this work was to assess the association between the extreme heat (daily maximum temperature, daily minimum temperature, daily mean temperature, relative humidity and HI) and all-cause mortality for summer months (March to June) from 2006 to 2015 for urban population of Jaipur. For summer months, we collected the data on various temperature and all-cause mortality parameters for at least 10 years. The student’s t-test and ANOVA were used to analyse variations in mean temperature, maximum temperature and HI. The Pearson correlation coefficient was used to study the relationship between ambient heat and lag time effect all-cause mortality. A total of 75,571 deaths (all-cause mortality) for 1,203 summer days (2006–2015) were analysed in relation to temperature and relative humidity. The mean daily all-cause mortality has been estimated at 62.8 ± 15.2 for the study period. There is a significant increase of 39% per day all-cause mortality at the maximum temperature of 45 °C and above. However only 10% rise per day all-cause mortality for extreme danger days (HI > 54 °C). The mean daily all-cause mortality shows a significant association with daily maximum temperature ( F = 34.6, P < .0001) and HI (discomfort index) from caution to extreme danger risk days ( F = 5.0, P < .0019). The lag effect of extreme heat on all-cause mortality for the study period (2006 to 2015) was at a peak period on the same day of the maximum temperature ( r = 0.245 at P < .01) but continues up to four days. The study concludes that the effect of ambient heat on all-cause mortality increase is clearly evident (rise of 39% deaths/day). Accordingly, focus should be put on developing adaptation measures against ambient heat. This analysis may satisfy policy makers’ needs. Extreme heat-related mortality needs further study to reduce adverse effects on health among Jaipur’s urban population.

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Section: Discussionsupporting

confidence: 61%

“…Because age or cause of death data were not available, all-cause mortality data were analysed as previously done (Desai et al, 2015b; Rathi et al, 2017). This study does not distinguish heat-related mortality due to the unavailability of clear causal deaths.…”

Section: Limitationsmentioning

confidence: 99%

Summer Temperature and All-cause Mortality from 2006 to 2015 for Smart City Jaipur, India

Rathi

Sodani

Joshi

2021

Journal of Health Management

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“…However, we did not find significant association with place of residence. It is contradictory with findings from other studies [17,24,25]; so, we assume it is not simply the place of residence, but individual and housing factors that contribute to heat illness. Previous studies have focused only on slum areas without a comparison population.…”

Section: Discussioncontrasting

confidence: 79%

Vulnerability and Adaptation to Extreme Heat in Odisha, India: A Community Based Comparative Study

Swain

Bhattacharya

Dutta

et al. 2019

IJERPH

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Background: Extreme heat and heat illness are becoming very frequent in India. We aimed to identify the factors associated with heat illness and the coping practices among city dwellers of Odisha, India during the summer. Methods: A cross-sectional study included 766 households (HHs) in twin cities of Odisha covering a population of 1099 (slum: 404 and non-slum: 695) in the year 2017. We collected information on sociodemographic, household characteristics, coping practices to heat and the heat illness history reported during the summer. Multivariate logistic regression accounting for clustering effects at the household and slum levels was used to identify the associated factors of heat illness after adjustment of other variables. Result: Nearly, 49% of the study participants were female and the mean age was 38.36 years (95% confidence interval (CI): 37.33-39.39 years). A significant difference of living environment was seen across the groups. More than two-thirds of the study participants at least once had heat illness. In the non-slum population, males (adjusted odds ratio (aOR): 3.56; 95% CI: 2.39-5.29), persons under medication (aOR: 3.09; 95% CI: 1.15-8.29), and chronic conditions had higher association with heat illness. Whereas, in the slum population, having a kitchen outside the home (aOR: 1.63; 95% CI: 1.02-3.96) and persons with chronic conditions were positively associated with heat illness. Use of cooling practices in slum areas reduced the risk of heat illness by 60%. Conclusion: Heat illness is associated with the living environment and physical health of the individuals. Identifying the vulnerable population and scaling up adaptive practices can strengthen the public health preparedness.

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“…The study also concluded the spatial variation of all-cause mortality at zonal level with temperature. [ 1 ] Global public health scenario is changing because of remarkable burden of diseases and mortality due to climate change, especially extreme temperatures. Studies have shown that heat waves are the most significant weather-related cause of mortality throughout the world.…”

mentioning

confidence: 99%

Summer heat: Making a consistent health impact

Agarwal

Dwivedi

Ghanshyam

2018

Indian J Occup Environ Med

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Summer temperature and spatial variability of all-cause mortality in Surat city, India

Cited by 18 publications

References 10 publications

Summer Temperature and All-cause Mortality from 2006 to 2015 for Smart City Jaipur, India

Summer Temperature and All-cause Mortality from 2006 to 2015 for Smart City Jaipur, India

Vulnerability and Adaptation to Extreme Heat in Odisha, India: A Community Based Comparative Study

Summer heat: Making a consistent health impact

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