Epworth sleepiness scale
Last reviewed 12/2022
The Epworth Sleepiness Score (ESS) seeks to determine how likely are you to doze off or fall asleep in the following situations, in contrast to feeling just tired.
The score refers to a person's usual way of life in recent times. Even if a person has not done some of these things recently they are advised to try to work out how they would have affected him/her. The following scale is used to choose the most appropriate number for each situation:
0 = no chance of dozing
1 = slight chance of dozing
2 = moderate chance of dozing
3 = high chance of dozing
SITUATION |
CHANCE OF DOZING |
Sitting and reading |
= |
Watching TV |
= |
Sitting inactive in a public place (e.g a theater or a meeting) |
= |
As a passenger in a car for an hour without a break |
= |
Lying down to rest in the afternoon when circumstances permit |
= |
Sitting and talking to someone |
= |
Sitting quietly after a lunch without alcohol |
= |
In a car, while stopped for a few minutes in traffic |
= |
Results and Interpreation
Add the individual scores to calculate the total 'chance of dozing'
- the ESS score is the sum of the eight item-scores and can vary from 0 to 24.
- ESS values range from zero (unlikely to fall asleep in any situation) to 24 (high chance of falling sleep in all 8 situations)
The ESS final score of
- 0 - 10 is considered normal
- 11-14 is considered as mild day time sleepiness
- 15-18 is considered as moderate day time sleepiness
- 19-24 is considered as severe day time sleepiness (1)
Click here for an online calculator for the Epworth Sleepiness Scale
Reference:
Stop-bang questionnaire for assessing obstructive sleep apnoea risk