Skip to main content

Table 1 Patients’ characteristics of the study cohorts

From: Effects of particulate matter (PM) on childhood asthma exacerbation and control in Xiamen, China

   Number Percentage
Gender Male 2110 67.90
Female 996 32.10
Age(years) 0–3 1230 39.60
4–6 1238 39.90
7–14 638 20.50
Total 3106 100
Return visit
Gender Male 2292 66.60
Female 1151 33.40
Age(years) 0–3 1127 32.70
4–6 1542 44.80
7–14 774 22.50
Total 3443 100