나이대별로 분류해 보면 신고된 환자의 72.6%는 30∼40대인데 이 가운데 30대가 37.4%로 가장 많았고 이어 40대는 35.2%로 뒤를 이었다.
By age group, 72.6% of the reported patients were in their 30s and 40s, with 37.4% of them in their 30s, followed by 35.2% in their 40s.