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Across 4. the proportion of persons diagnosed with a specific disorder who die within a specific time 9. a form of epidemiology that investigates causes and associations between factors or events and health 10. the probability of some event or outcome occuring within a specific period 16. The study of distubition and factors thst determine health-related states or events in a population 18. using epidemiologic, clinical, statistical, and other scientific evidence to judge if a casual association exist between two or more factors or events. 22. long-term patterns of morbidity or mortality 23. an epidemiologic study design in which subjects with a specified disease or condition and comparable group without the condition are enrolled and assessed for the presence or history of an exposure or characteristic 24. a type of intervention that seeks to promote health and prevent disease from the begining

Down 1. an intervention that seeks to detect disease early in it's progression before clinical signs and symptoms become apparent in order to make an early diagnosis and begin treatment 2. a human or animal that provides adequateliving conditions for any given infectious agent 3. a three level model of interventions based on the stages of disease, designed to halt or reverse the processof pathological change as early as possible, thereby preventing damage 5. intervention that begins once the disease is obvious; the aim is to interrupt the course of the disease, reduce the amount of disability that might occur, and begin rehabilitation 6. an epidemiologic study in which health outcomes and exposures or charasteristics of interest are simultaneously ascertained and examined for an association in a population or sample providing a picture of existing levels of all factors 7. a form of epidemiology that describes a disease according to dimensions of a person, place, and time 8. a rate of disease clearly in excess of usual frequency 11. factors that influence the risk for or distrubition of health outcomes 12. a type of incidence rate defined as the proportion of persons who are exposed to an agent and who develop the disease, usually for a limited time in a specific population 13. for public health refers to all factors that constitute the context in which persons or animals live 14. in determining causality, a systematic error because of the way the study is designed, how it was carried out, or some unexplained events that occurred and affected the study 15. a bias that results from the relationship between both the ooutcome and study factor and some third factor not accounted for in analysis 17. an epidemiologic study design in which subjects without an outcome of interest are classified according to past or present exposures or characteristics and followed over time to observe and compare rates of some health outcome in the various exposure groups 19. a pattern of a health outcome in a population;the frequencies of the outcome according to various personal charasteristics, geography, and time 20. systematic and ongoing observation and collection of data concerning disease occurrence in order to describe phenomena and detect changes in frequency or distribution 21. causative factor invading a suseptible host through an enviroment favorable to produce disease, such as a biological or chemical agent