Presentation Information
[ctkh3Px5-03]Gender difference in Greenness effect on preventable mortality among middle-aged people: evidence from 47 cities in Japan, 2001-2018
*Meng Xiaolu1, Saori Kashima1 (1. Hiroshima University (Japan))
Keywords:
Greenness,All-cause mortality,Cause-specific mortality
[Purpose]The protective effect of greenness on reducing human mortality is well recognized. However, the gender difference in greenness on preventable mortality among middle-aged adults is still unclear.
[Method]To address this deficit, we conducted a study on middle-aged adults (40-64 years) across 47 cities in Japan. We measured the normalized difference vegetation index (NDVI) to reflect the greenness level from 2001 to 2018. We calculated the greenness and all-cause and cause-specific mortality associations, stratified by gender levels. Moreover, we computed the gender difference of preventable deaths attributed to greenness changes and differences in 2001-2010 and 2011-2018.
[Results]The result shows that a 0.1 increase in NDVI associated with an all-cause mortality rate ratio (MRR) of 0.96 (95% CI: 0.93-0.98) in males, compared with 0.97 (95% CI: 0.95-0.99) in females. A 0.1 increase in NDVI corresponded to a 7% decrease in respiratory mortality in males (MRR= 0.93, 95% CI: 0.89-0.97), compared to a 6% decrease in females (MRR= 0.97, 95% CI: 0.90-0.98). The changes of NDVI from 2001 to 2010 and from 2011 to 2018 could avert 79 and 7 all-cause deaths among females, respectively, compared to 174 and 13 deaths among males. If the NDVI reached the counterfactual level in 2001 and 2010, it could reduce all-cause mortality by 985 and 828 deaths among females, respectively, compared to 2,251 and 1,935 deaths among males.
[Consideration] Although men have slightly higher preventable effects compared with women, we observed evidence that increased greenness reduces the mortality both genders.
[Conclusion]These findings indicate the potential of a population-level intervention for reducing mortality in Japan, which has important public health and social equality at the city level to achieve SDG5.
[Method]To address this deficit, we conducted a study on middle-aged adults (40-64 years) across 47 cities in Japan. We measured the normalized difference vegetation index (NDVI) to reflect the greenness level from 2001 to 2018. We calculated the greenness and all-cause and cause-specific mortality associations, stratified by gender levels. Moreover, we computed the gender difference of preventable deaths attributed to greenness changes and differences in 2001-2010 and 2011-2018.
[Results]The result shows that a 0.1 increase in NDVI associated with an all-cause mortality rate ratio (MRR) of 0.96 (95% CI: 0.93-0.98) in males, compared with 0.97 (95% CI: 0.95-0.99) in females. A 0.1 increase in NDVI corresponded to a 7% decrease in respiratory mortality in males (MRR= 0.93, 95% CI: 0.89-0.97), compared to a 6% decrease in females (MRR= 0.97, 95% CI: 0.90-0.98). The changes of NDVI from 2001 to 2010 and from 2011 to 2018 could avert 79 and 7 all-cause deaths among females, respectively, compared to 174 and 13 deaths among males. If the NDVI reached the counterfactual level in 2001 and 2010, it could reduce all-cause mortality by 985 and 828 deaths among females, respectively, compared to 2,251 and 1,935 deaths among males.
[Consideration] Although men have slightly higher preventable effects compared with women, we observed evidence that increased greenness reduces the mortality both genders.
[Conclusion]These findings indicate the potential of a population-level intervention for reducing mortality in Japan, which has important public health and social equality at the city level to achieve SDG5.
Comment
To browse or post comments, you must log in.Log in