Week 123 - Epidemiology of depression Flashcards
What is epidemiology?
The study of distribution and determinants of diseases in specific populations
What details is epidemiology concerned with?
Time
Person
- gender
- age
Place
- point prevalence
- incidence
- lifetime prevalence
What is the gender associations with depression?
Female: Male = 2:1
What is the most common age onset for depression?
25 - 30 years old
What is the point prevalence of depression?
2 - 10 %
What is the incidence of depression in adults per year?
1 - 3%
What is the lifetime prevalence of depression?
4 - 20%
What does lifetime prevalence mean?
The number of people who have ever-had a disease in their lifetime
What does point prevalence mean?
The number of people who have a disease at the time of the study
What does period prevalence mean?
The number of people who have/had a disease in the time of a particular period
What does cumulative incidence mean?
The incidence where each case is followed up for the same time
What does incidence density mean?
The incidence where each case is followed up for different length of time
