{
  "abstract": "Background Although both particulate matter with a diameter of 2.5 μm (PM 2.5) and black carbon are associated with cardiovascular disease, data on the correlation of PM 2.5 and black carbon with acute ischaemic stroke, particularly based on ecological research, remain limited.Aim To evaluate the association of PM 2.5 and black carbon with cases of acute ischaemic stroke in Thailand adjusted for physical factors.Methods In our ecological study, we collected data from the Health Insurance Database, which covers approximately 70% of Thailand’s population from 77 provinces, about numbers of patients with acute ischaemic stroke who were admitted and reimbursed. The data of PM 2.5 and black carbon were collected. The predictive model of cases of acute ischaemic stroke in relation to PM 2.5 and black carbon was computed by Poisson regression analysis adjusted for physical factors.Results During the study period, 201 023 patients were diagnosed as having acute ischaemic stroke in 77 provinces in Thailand. The median of PM 2.5 and black carbon of all provinces was 29.19 (range: 18.88–34.50) and 1.17 (range: 0.43–2.29) µg/m 3, respectively. PM 2.5 and black carbon were significantly associated with cases of acute ischaemic stroke with adjusted coefficients of 0.008 and 0.179, respectively (p<0.001 for both factors).Conclusions Our ecological study showed that both PM 2.5 and black carbon are associated with cases of acute ischaemic stroke in Thailand.",
  "authors": [
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Kannikar Kongbunkiat"
    },
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Pipat Pattanapipitpaisal"
    },
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Suphasit Seoratanaphunt"
    },
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Udomlack Peansukwech"
    },
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Nisa Vorasoot"
    },
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Narongrit Kasemsap"
    },
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Somsak Tiamkao"
    },
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Verajit Chotmongkol"
    },
    {
      "affiliations": [
        "Department of Preventive and Social Medicine, Faculty of Medicine, Chulalongkorn University, Bangkok, 10330, Thailand"
      ],
      "name": "Thanat Nakaphan"
    },
    {
      "affiliations": [
        "Department of Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, 40002, Thailand"
      ],
      "name": "Kittisak Sawanyawisuth"
    }
  ],
  "title": "PM 2.5 and black carbon associated with acute ischaemic stroke: an ecological study",
  "uid": "54134e01-e18d-5c90-9b48-a4c932d138c0"
}