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Occupational screening for obstructive sleep apnea in commercial drivers
Indira Gurubhagavatula1, Greg Maislin, Jonathan E Nkwuo
1Center for Sleep and Respiratory, Neurobiology Hospital of the University of Pennsylvania, 9th Floor, Maloney Building, 3600 Spruce Street, Philadelphia, PA 19104-4283, USA. gurubhag@mail.med.upenn.edu
Summary
A two-stage screening effectively excludes severe obstructive sleep apnea in commercial drivers, reducing accident risks. This method, combining symptoms and BMI, is a viable alternative to oximetry for identifying severe cases.
Area of Science:
- Occupational Health
- Sleep Medicine
- Transportation Safety
Background:
- Obstructive sleep apnea (OSA) poses a significant risk for sleepiness-related accidents in commercial drivers.
- Accurate screening is crucial for mitigating these risks and ensuring driver safety.
Purpose of the Study:
- To compare the accuracy of five different strategies for excluding severe and any obstructive sleep apnea in commercial drivers.
- To identify the most effective screening method for this high-risk population.
Main Methods:
- A prospective study involving 406 commercial drivers.
- Comparison of five screening strategies against polysomnography as the gold standard: symptoms, BMI, symptoms + BMI, a two-stage approach (symptoms + BMI followed by oximetry for a subset), and oximetry for all.
Main Results:
- The two-stage screening strategy demonstrated high accuracy in excluding severe sleep apnea (91% sensitivity and specificity, negative likelihood ratio of 0.10).
- Oximetry alone also showed high accuracy for severe sleep apnea (88% sensitivity, 95% specificity, negative likelihood ratio of 0.12).
- Excluding any sleep apnea required oximetry for reasonable accuracy; symptom and BMI-based methods alone were insufficient.
Conclusions:
- A two-stage screening approach is a practical and effective method for excluding severe obstructive sleep apnea in commercial drivers.
- This strategy offers a viable alternative to oximetry-only screening for severe OSA, balancing accuracy and resource utilization.