Title 26. STATISTICAL METHODS IN EPIDEMIOLOGY.pdf ✅

PHARMD GURU Page 1 INTRODUCTION TO EPIDEMIOLOGY: Epidemiology is the study of diseases in a population and helps identify how often and why diseases occur. It helps researchers and healthcare professionals in:  Understanding disease patterns.  Identifying risk factors.  Planning disease prevention and control measures. Epidemiology studies populations, unlike clinicians who focus on individual patients. INCIDENCE AND PREVALENCE: Epidemiology uses two main measures to study disease occurrence: 1. Incidence – Measures the occurrence of new cases. 2. Prevalence – Measures the total number of cases (both new and existing). 1) INCIDENCE: a) Definition: Incidence is the number of new cases of a disease in a specific population over a specific period. b) Indicates: The risk of developing a disease. a) INCIDENCE PROPORTION (CUMULATIVE INCIDENCE): STATISTICAL METHODS IN EPIDEMIOLOGY


PHARMD GURU Page 4 ATTRIBUTABLE RISK PERCENTAGE (AR%): POPULATION ATTRIBUTABLE RISK (PAR): SUMMARY: