Epidemiological analysis and clinical characteristics of varicella inpatients

Abstract

Objective To further understand the prevalence and clinical characteristics of varicella,in order to facilitate better control measures.Methods The data of 486 cases of varicella inpatients were analyzed during January 2006 and November 2009 in Children's Hospital of Chongqing Medical University.The data were analyzed by the excel 2003,x2 test and median.Results(1) There were many varicella cases each year.The disease occurred annually,but there were statistical differences(x2=30.44,P＜0.01).(2) In 486 cases of varicella inpatients,163 cases had contact history(33.54%),307 cases had no contact history(63.17%),and 16 cases' contact history were't clear.15 cases had immunization history(3.09%);458 cases had no the history(94.24%),and 13 cases' immunization history weren't clear.The disease occurrence rate in the patients with unclear contact history was higher than those with contact history (x2=88.24,P＜0.01).(3) 451 cases were ordinary varicella(92.80%).11 were neonatal varicella(2.26%).24were severe varicella(4.94%).The motability in special patients was higher than that in ordinary patients(x2=6.17,P ＜ 0.05).377 inpatients had complications,and the major complication was skin infection(56.79%).231 cases were cured(47.53%),251 were improved(51.65%),4 were dead(0.82%).Conclusions Varicella is very extensive,the deaths also occur often.The control measures on children in primary and preschools and improvement of the varicella immunization rate are the most important problems to be solved. Key words: Chickenpox; Epidemiology; Clinical characteristics; Analysis