Fig 1.
PRISMA flow diagram illustrating the literature search, screening process, results, and exclusions.
Table 1.
Descriptive characteristics of the included articles (N = 112).
Fig 2.
The time range for health outcomes following exposure by type of air pollutant.
Fig 3.
The number of reviewed articles and the type of association between air pollutants and the most studied mortality and hospital admission outcomes.
Table 2.
The definitions of air temperature exposure classifications.
Fig 4.
The number of reviewed articles and the type of association between temperature and the most studied mortality and hospital admission outcomes.