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Public Health

Question AnswerQustion Answer
What is Incidence rate Number of new cases in specified period/No. of persons at risk at the same period X 100. What is morbidity rate Rate of disease in a population at risk and refers to both incident and prevalent cases. What is a Live birth Child born with ANY sign of life. what Perinatal Mortality Rate # Still births + # deaths to infants <7 days old / # Still births + # live births.
Early fetal death = Death during first 20 weeks of gestation (spontaneous abortion). Maternal Mortality Rate = Number of pregnancy related deaths/number of live births. proportionate mortality rate (PMR) = deaths from cause /all deaths
What is prevalence number of persons with disease in population at a specific time.
prevalence rate = all cases of a disease at a given at a given time/Total population at risk at that period x 100. Intermediate fetal death = Death between 20 –28 weeks gestation.
what is point prevalence=number of persons who had the disease at any time during the specified time interval. Mortality rate = Rate of death in a population at risk and refers to incident cases only. Late fetal death = After 28 weeks gestation stillbirth.
Period prevalence=persons who had the disease at any time during the specified time interval. Incident density = Frequency of new events per person-time (per person – months, person – years). Infant death = Death before 1st birthday.
formula for prevalence = incidence x average (duration). Crude death Rates = number of death rates (defined place and time period)/Mid period population (same place and time period) x 100 . Crude birth rate = Number of live births / midperiod population.
What is Risk = Proportion of persons unaffected at the beginning of the study period but undergo the risk event during the study period. Standardized mortality ratio = Observed total events in the study group, divided by the expected number of events. “expected” is based on standard population rates. Infant mortality ratio = Number of deaths of infants / number of live births.
Cohort = defined group of people studied over a period of time to determine the incidence of death disease or injury. causes specific death rate = No. deaths due to a particular cause/Mid period population (same place and time period). Neonatal mortality rate = Number of deaths of infants under 28 days of age/number of live births.
What is Rate = frequency (number) of events in a defined time period divided by the average. population at risk. cause fatality rate = deaths from a particular disease/Number of persons with disease. Post-neonatal mortality rate = Number of deaths to infants between 28 & 365 days of age/number of live births.
Created by: togini