Shanxi Province Of Infectious Atypical Pneumonia Deaths In The Study Of Risk Factors

Objective: To learn the characteristics of SARS distribution among people, area and time. To discuss the effective factors on SARS death cases. To discover the epidemiological characteristics and regular pattern of prevention and control in SARS, providing basis for scientific prevention and guiding clinical treatment of SARS.Methods: Methods Base on the Epidemiological Database of National Individual Report System of SARS, using Individual Questionnaire of SARS which made by MOH, taking investigations according to guiding principle of Individual of SARS Epidemiological Investigation in Shanxi province. Meanwhile make phone call to get information in Taiyuan city. The data were analyzed with SPSS software in application of single factor and multi-factor logistic regression.Results: Results Death cases were reported from 5 cities during the outbreak of SARS from March to June of 2003, the highest case-fatality ratio (CFR) was recorded in Jin Cheng (CFR: 100%), the lowest ratio was in Taiyuan (CFR: 5.36%); among this males (CFR: 5.56%), females (CFR: 5.14%). No death case aged below 10. The highest CFR occurs in the group aged 70 and above, aged 60 and aged 50 respectively. The danger of death case over 60 year-old is 7.565 times than 60 year-old (95%CI2.981-19.196). According to occupation-specific CFR study, most of deaths are found in retirees, teachers and labors, while lower CFR is recorded among health-care workers. The onset-time curve of SARS deaths matches the overall onset-time curve; most of deaths were recorded in the period from 5th of April to 4th of June. The medians of periods between onset and hospital admission, onset and diagnosis, onset and death, hospital admission and death, diagnosis and death are 3 days,5days, 13 days, 10.5days and 9days rseparately.Conclusion: Based on the analysis of detailed-case study in Taiyuan, the following factors were contributed to the clinic outcomes of SARS cases, age, and contact with SARS case, respiratory distress and white cell count at the hospital admission. Most deaths were recorded having contact history with SARS case before, 60 year-old or older cases which suffered respiratory distress at hospital admission and had higher white cell count intended to death.