Incidence.
Is the number of new cases/events in a specific population at a specific time.
However it can be expressed as Incidence Risk, Incidence Odds, Incidence Rate.
If you have ever played dodgeball, you know that the object of the game is to DODGE the ball being thrown. So if we were to use incidence in this scenario it would be measuring the chances of dodging the ball.
Risk – looks at the amount of players left on the court after a specified amount of time. (after 10 minutes of game play)
Odds – looks at the amount of players left on the court vs the amount of players out of the game (cause they did not dodge the ball) at a specific time. (after 30 minutes of game play)
Rate – tells us how many people have dodged the ball during any point of the game and looks at the total amount of time a person has participated, allowing for people to be swapped in and out of the teams involved. (time here is the entire game)
Examples in medicine?
Newly diagnosed diabetics in Hospital Queen Elizabeth (HQE), Sabah in November 2017.
Risk – Amount of new individuals diagnosed with diabetes in HQE in November 2017 out of all patients seen during that time.
Odds – Amount of newly diagnosed diabetics in November 2017 vs all the other patient who were not diagnosed with Diabetes in HQE in November 2017.
Incidence Rate – Amount of newly diagnosed diabetics in HQE in 2017 (Number of cases per year)
365 days of public health 