临沂地区某医院儿科1981～1986年1～12月7类疾病病死率集中度以呼吸系统疾病最高(51.33),其它疾病均在50以下。呼吸系疾病死亡高峰月(1、2月)病死率占全年的51%,并与集中度成正相关,说明呼吸系疾病病死率季节集中较明显,而其它疾病死亡季节分布比较分散。 Linyi pediatric department of a hospital from 1981 to 1986 January to December 7 kinds of disease mortality concentration to the highest respiratory disease (51.33), other diseases are below 50. Respiratory disease mortality peak month (January and February) mortality rate accounted for 51% of the year, and with a positive correlation between concentration, indicating that respiratory disease mortality is more concentrated season, while the distribution of deaths in other diseases more dispersed.