Table 1

Key features of screening questionnaires for OSA

How likely are you to doze off or fall asleep in the following situations, in contrast to feeling just tired?
SituationChance of dozing (0–3)
Sitting and reading
Watching TV
Sitting inactive in a public place (e.g. a theatre or 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 the traffic
Berlin questionnaire
Age ______ Gender______Weight _______ Height ______
Category 1Category 2
1. Do you snore?6. How often do you feel tired or fatigued after your sleep?
2. Your snoring is:7. During your waking time do you feel tired, fatigued, or not up to par?
 a) Slightly louder than breathing8. Have you ever nodded off or fallen asleep while driving a vehicle? If yes:
 b) As loud as talking9. How often does this occur?
 c) Louder than talkingCategory 3
3. How often do you snore?10. Do you have high blood pressure?
4. Has your snoring ever bothered other people?BMI=
5. Has anyone noticed that you quit breathing during your sleep?
STOP–BANG questionnaire
SnoringBMI >35 kg·m−2
TirednessAge >50 years
Observed you stop breathingNeck circumference >40 cm (15.7 inches)
Blood PressureGender Male