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Table 1 Demographic and seasonal characteristics of outpatient visits for arrhythmia

From: Associations between air pollution and outpatient visits for arrhythmia in Hangzhou, China

Variables Number of Patients Percentage (%)
Gender Groups
 Male 7206 44.5
 Female 8985 55.5
Age Groups
  < 45 3701 22.9
 45–60 7368 45.5
  ≥ 60 5122 31.6
Season Groups
 Warm season 8152 50.3
 Cold Season 8039 49.7