Rotjanabumrung M.Phosri A.Sihabut T.Neamhom T.Mahidol University2023-05-192023-05-192023-01-01Stochastic Environmental Research and Risk Assessment (2023)14363240https://repository.li.mahidol.ac.th/handle/123456789/81851Numerous epidemiological studies have shown that biomass open-burning (BOB) related air pollution has been associated with adverse health effect, but limited evidence is found in Thailand. We investigated the effects of BOB occurrence on outpatient department (OPD) visits for cardiovascular and respiratory diseases in Thailand and further explored the effects of longer exposure duration and higher exposure intensity to BOB. Fire hotspot data were acquired from the Visible Infrared Imaging Radiometer Suite (VIIRS) on board the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite during January 2016 through December 2020 across Thailand, and OPD visits data were obtained from the National Health Security Office during the same period. A time-stratified case-crossover design with conditional logistic regression was used to examine province-specific estimates of BOB-related air pollution on OPD visits, controlling for many possible confounders, and random-effect meta-analysis was then applied to derive the national estimate. Odds ratio (ORs) of cardiovascular and respiratory OPD visits on the day of BOB occurrence was 1.0105 (95% CI: 0.9971, 1.0240) at lag 5 days and 1.0131 (95% CI: 1.0050, 1.0213) at current day, respectively. ORs of cardiovascular and respiratory OPD visits associated with longer exposure duration to BOB was 1.0272 (95% CI: 1.0104, 1.0442) and 1.0275 (95% CI: 1.0139, 1.0413), respectively. Higher exposure intensity to BOB was not significantly associated with OPD visits for both cardiovascular and respiratory diseases. Findings from this study can be used to establish the warning systems associated with exposure to BOB-related air pollution to reduce adverse health effects in Thailand.EngineeringArticleSCOPUS10.1007/s00477-023-02424-12-s2.0-8515203497514363259