Case Study Exercise 23 Morbidity and Mortality Weekly Report 187 DC has suscepti
ID: 99173 • Letter: C
Question
Case Study Exercise 23 Morbidity and Mortality Weekly Report 187 DC has susceptible population during that period g that of any pears susceptible population during that period, as seen in the quation: Incidence = C has no. new cases susceptible population size at midpoint of period ×K and this Just as S Just as with morbidity and mortality, the size of the popula- ear- tion is determined at the midpoint of the period, and the ory constant K is used to make the incidence a more easily tial reportable number. N1 Morbidity, mortality, and incidence are often combined with other data, such as the geographic location of cases, the sex, race, and behavior of those infected, and even the timeExplanation / Answer
Incidence is the occurrence of an events or characteristics over a period of time.The incidence is used to :
1. describe the rate of disease occurrence over time .
2. assess patient survival .
3.compare the risk of disease between 2 or more populations
Incidence rate- it’s the rate that express the probability that defined population at risk to develop an outcome at risk , it may be the most important morbidity rate in the epidemiology and it denotes to how much the disease occur in number among the population at risk .
So the incidence rate is expressed as :
No. of new cases of a specific disease during a given time interval / Estimated mid interval population at risk x k
Thus by knowing the values of incidence rate and no. of new cases and estimated population at risk the fourth variable i.e.K can be calculated.