Measures of Disease Frequency: Prevalence and Incidence

Measures of disease frequency: prevalence and incidence.

To describe how often a disease or another health event occurs in a population, different measures of disease frequency can be used. The prevalence reflects the number of existing cases of a disease. In contrast to the prevalence, the incidence reflects the number of new cases of disease and can be reported as a risk or as an incidence rate. Prevalence and incidence are used for different purpo...

Frequency, incidence, and prevalence

I have read with interest the paper “Recent incidence and descriptive epidemiological survey of breast cancer in Saudi Arabia” published by Saggu et al1 in the October 2015 issue of Saudi Medical Journal. In this paper, the authors reported a frequency profile of breast cancer (BC) in the Kingdom of Saudi Arabia (KSA) for almost 2 decades indicating that the cancer increased over time in this r...

Complexity of prevalence and incidence measures in headache research.

Defining disease status in population-based studies is often challenging, particularly when disease status changes between active and non-active stages. Migraine is a typical example of a fluctuating disease as its frequency and clinical features can vary considerably during one’s lifespan (1). In general, the data show that the vast majority of patients have an onset of their migraine in child...

Anthropometric Measures and the Risk of Coronary Artery Disease

Prevalence and Incidence of Multiple Sclerosis (MS) in Guilan Province

Introduction: The aim of this study was to investigate the prevalence and incidence of multiple sclerosis (MS) in Guilan Province) and to compare the standardized prevalence by the factor of age in this province. Methods: The study was a cross-sectional design that was conducted in 2018 at the Guilan MS Society (GMSS) on people with multiple sclerosis and examined the 654 people with multiple ...