Marti-Soler et al developed the NoSAS score to screen for obstructive sleep apnea (OSA. This can help to identify a patient who should undergo polysomnography. The authors are from Lausanne University and Universidade Federal de Sao Paulo in Brazil.
Patient selection: adult
Parameters:
(1) neck circumference in centimeters
(2) body mass index (BMI) in kg per square meter
(3) snoring
(4) age in years
(5) gender
Parameter
Finding
Points
neck circumference
<= 40 cm
0
> 40 cm
4
body mass index
< 25 kg per square m
0
25 to 29.9
3
>= 30 kg per square m
5
snoring
no
0
yes
2
age in years
<= 55 years
0
> 55 years
4
gender
female
0
male
2
total score =
= SUM(points for all 5 parameters)
Interpretation:
• minimum score: 0
• maximum score: 17
• A score >= 8 was associated with high probablility of OSA.
• Guichard et al found it useful in evaluating depressed adults with disordered sleep.
Performance:
• The area under the ROC curve was 0.74.
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