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Item new peer-reviewed
Higher particulate exposure before surgery tracked worse gastric cancer survival in China
In 4,441 patients who had radical surgery for stage I-III gastric cancer in Zhejiang, China, each standard-deviation rise in pre-surgery PM2.5 exposure was associated with 15% higher all-cause mortality and 31% higher gastric cancer-specific mortality.
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Item refines peer-reviewed
Particulate matter shows no overall association with venous thromboembolism
An updated meta-analysis of 19 observational studies covering more than 4.5 million people found no significant overall association between long-term particulate exposure and venous thromboembolism, with a modest one appearing only among studies reporting in the same units.
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Item new peer-reviewed
Fine particulate matter shows no association with ovarian cancer across pooled cohorts
A systematic review of 145 studies of environmental chemical exposures and gynaecologic cancers found no pooled association between PM2.5 and ovarian cancer (HR 1.02 per 5 µg/m³, 95% CI 0.91–1.13) and only a marginal one for endometrial cancer (HR 1.02, 95% CI 0.99–1.05).
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Item refines peer-reviewed
China's clean-heating pilots cut heating-season PM2.5 most in the pollution tails
An augmented synthetic control evaluation of 88 clean-heating pilot cities in northern China found heating-season PM2.5 fell by 3.01 \u00b5g/m\u00b3 on average but by 5.96 \u00b5g/m\u00b3 at the 99th percentile, with high-pollution days contributing almost half the modelled mortality difference.
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Item refines peer-reviewed
Wildfire smoke accounted for 1.9% of deaths across ten countries and territories
A causal analysis of 47.8 million deaths in 1366 communities across ten countries and territories attributed 906 869 deaths to landscape fire PM2·5, with instrumental-variable estimates a median 56% higher than conventional association estimates.
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Item confirms peer-reviewed
Greenspace tracks lower pollution-related respiratory mortality, mainly via mediation
A systematic review of 14 good-quality cohort studies, mostly European, found residential greenspace associated with lower air-pollution-related respiratory mortality and better lung function, with the association appearing more consistently in mediation than in moderation analyses.
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Item new peer-reviewed
Wildfire PM2.5 exposure is linked to shorter survival in older US lung cancer patients
A SEER-Medicare cohort of 414,016 patients aged 65 or older with lung cancer linked residential zip-code estimates of wildfire-related and non-wildfire PM2.5 from 2008 to 2019 to all-cause mortality, separating the two sources of fine particulate exposure.
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Item refines peer-reviewed
Heat exposure raises COPD mortality by 26% and morbidity by 5% across 36 studies
A meta-analysis of 36 observational studies found heat exposure associated with a pooled risk ratio of 1.15 for COPD outcomes overall, 1.26 for mortality and 1.05 for morbidity, with heatwave and threshold definitions giving larger estimates than continuous temperature measures.
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Item new preprint
Long-run mortality from tropical cyclones concentrates in socially vulnerable counties
Among high-vulnerability counties in Texas, tropical cyclone exposure was associated with elevated all-cause mortality persisting long after landfall, whereas the effect in lower-vulnerability counties was not statistically significant.
