What is the denominator in calculation of incidence -
Incidence is defined as new cases occurring in a defined population during a specified period of time. Incidence =(number of new cases of specific disease in a given time proof\population at risk during that period) 100 (refer pgno:60 park 23 rd edition)
Number of fresh cases
Number of symptomatic cases
Total number of cases
Population at risk
Epidemiology