summarizes the estimates of season-, sex- and agespecific
effects for each pollutant. In the season-specific analysis,
stronger associations were observed in the cool season for SO2
(p ¼ 0.89), NO2 (p < 0.01) and BC (p ¼ 0.72), compared to the warm
season. However, only NO2 showed significant differences across
seasons. The effects of PM10 were insignificant for either season. In
the sex-specific and age-specific analyses, the effects of air pollutants
on asthma hospitalizations did not have statistically significant
difference (all p values >0.3) across genders or age groups (18e64
vs. 65), although the effects on elders trend to be stronger for NO2
and BC. In contrast, the effect tends to be stronger in younger group
for SO2.
summarizes the estimates of season-, sex- and agespecific
effects for each pollutant. In the season-specific analysis,
stronger associations were observed in the cool season for SO2
(p ¼ 0.89), NO2 (p < 0.01) and BC (p ¼ 0.72), compared to the warm
season. However, only NO2 showed significant differences across
seasons. The effects of PM10 were insignificant for either season. In
the sex-specific and age-specific analyses, the effects of air pollutants
on asthma hospitalizations did not have statistically significant
difference (all p values >0.3) across genders or age groups (18e64
vs. 65), although the effects on elders trend to be stronger for NO2
and BC. In contrast, the effect tends to be stronger in younger group
for SO2.
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