Health impacts of the Southeast Asian haze problem - A time-stratified case crossover study of the relationship between ambient air pollution and sudden cardiac deaths in Singapore.

Objectives: To investigate the association between air pollution and out-of-hospital cardiac arrest (OHCA) incidence in Singapore.

Design: A time-stratified case-crossover design study.

Setting: OHCA incidences of all etiology in Singapore.

The Relationship Between Ambient Air Pollution and Acute Ischemic Stroke: A Time-Stratified Case-Crossover Study in a City-State With Seasonal Exposure to the Southeast Asian Haze Problem.

Study Objective: Studies are divided on the short-term association of air pollution with stroke. Singapore is exposed to seasonal transboundary haze. We aim to investigate the association between air pollution and stroke incidence in Singapore.