Risk factors for obstructive sleep apnea among train drivers

Area of Science:

• Transportation Safety
• Occupational Health
• Sleep Medicine

Background:

• Screening for sleep apnea risk factors in safety-sensitive occupations is crucial for transportation safety.
• Locomotive drivers are a key group requiring assessment due to potential safety implications.
• Understanding risk factors is essential for developing effective screening strategies.

Purpose of the Study:

• To assess the prevalence of obstructive sleep apnea risk factors among locomotive drivers.
• To identify specific demographic and clinical factors associated with increased OSA risk in this population.

Main Methods:

• A cross-sectional study involving 281 locomotive drivers undergoing annual physical examinations.
• Data collected included demographics, Epworth Sleepiness Scale scores, blood pressure, BMI, neck circumference, and laboratory tests (FBS, lipids).
• Defined obstructive sleep apnea risk factors (OSA-RFs) included specific thresholds for blood pressure, BMI, age, and neck circumference, alongside drug use history.

Main Results:

• The study population consisted entirely of male locomotive drivers with a mean age of 43±10 years and a mean BMI of 26.9±3.9 kg/m².
• A significant proportion, 59.9% (166 drivers), presented with two or more obstructive sleep apnea risk factors (OSA-RFs).
• Mean fasting blood sugar and total cholesterol levels were 96.9±24.9 and 181.7±41.8, respectively.

Conclusions:

• The findings reveal a high prevalence of obstructive sleep apnea risk factors among locomotive drivers.
• Current screening regulations for diagnosing sleep apnea in this occupational group may require re-evaluation.
• Further research is recommended to validate and potentially revise screening protocols to enhance transportation safety.