The most frequent cardinal symptom of 496 out-call emergency cases was chest pain(26.41%),and cardiovascular disease toped the list of emergent diseases(33.67%).

• 该社区居民呼叫社区卫生服务急诊出诊的主要症状以胸痛最多(26.；41%25)；心血管疾病占急诊疾病构成的首位(33