七年制流行病学课上的练习题（Practice in a 7-year epidemiology class）.doc

七年制流行病学课上的练习题（Practice in a 7-year epidemiology class） Chapter ii distribution of disease 1, popular means: A, the incidence rate is over 5% B. The incidence rate is over 10% New cases have been reported in a wide range of areas There are two new patients in the family E, the incidence rate significantly exceeds the average incidence rate of the previous years 2. The most classical method of epidemiology to describe the three distributions of diseases is: A. study of birth cohort B. Cross-sectional study C. Immigration epidemiology D. Serum epidemiology E. Genetic epidemiology 3. The relationship between morbidity, prevalence and course of disease is: A, morbidity = morbidity B. Prevalence = morbidity C, morbidity = morbidity + course of disease D, incidence = morbidity - course E, the course of illness = morbidity In the past few years, there have been 30 cases of car accidents per year. In 2006, the incidence was 10/100,000. A, the outbreak of B, C, popular D, pandemic E, the world is very popular 5. If other conditions remain unchanged, the rise in prevalence of a disease in different periods may be related to which of the following factors? A higher incidence B medical level improved C course extension D condition Chapter iii descriptive research 1. The main tasks of the current study are: A. determine the etiology B. Verify the etiology C. look for clues to the cause D, cause inference 2. Community survey of a disease in a certain district, first, the community in the whole area is divided into three categories: good, good and poor. One in 10 people were randomly assigned to do the survey. The method of investigation is: A simple random System B sampling C cluster sampling D stratification sampling 3. In the sample survey, the factors related to the sample content were: A expected current rate of occurrence B local population C for the accuracy of the survey results Natural and economic conditions in D E requires a degree of certainty 4. The characteristics of