Table 4 Comparison of the reviewed articles regarding the used risk factors
References | Risk factors | ||
|---|---|---|---|
Personal | Weather | Air pollution | |
PEFR, respiratory symptoms, presence of cold, sleep disturbances, medication, and physical activity | – | – | |
[35] | FEV1, Lung functions, night awaking, used medication, activities, and symptoms | – | – |
[24] | Asthma severity, smoking status, PEFR, asthma attack history, medication, obesity, comorbidity, and blood eosinophil count | – | – |
[33] | Number of ED visits | – | PM2.5, O3, CO, and NO2 |
[26] | Number of ED visits | Temperature, humidity, and barometric pressure | – |
[27] | Number of ED visits | Humidity and temperature | PM2.5, CO, O3, NO2, PM10 |
[28] | Number of ED visits | Temperature and humidity | NO2 and Vegetation density |
[34] | Demographic data, number of asthmatic children in the selected schools, and the used medications | Temperature | PM2.5, PM10, SO2, NO2, CO, and O3 |
[31] | PEFR, Nose symptom, eye symptom, skin symptom, night symptom, day symptom, fever, dermatitis, rhinitis, asthma medicine instructions, conjunctivitis | Temperature, absolute maximum and minimum temperature, and humidity | HydraCarbon,HydraCarbon2, PH, PM10 CO, SO2, O3, NO2 |
[23] | PEFR and FEV 1 | Temperature, precipitation intensity, wind speed, humidity, pressure, and visibility | SO2, PM2.5, CO, NO2, and PM10 |
[36] | PEFR and patients’ location | Humidity, absolute maximum and minimum temperatures, average temperature, pressure, rainfall, and wind. | O3, SO2, NO2, CO, PM10 |
[25] | PEFR, location, and medical history. | Temperature, barometric pressure, and humidity | PM10, NO2, CO, O3, SO2 |
[37] | Food allergen | Humidity | Pollen |
[32] | Medication plan | – | CO, NO, dust and smoke |