The derailment occurred on Dec.1, 2013 when the conductor reportedly nodded off at a sharp turn near the Spuyten Duyvil train station, leaving four dead and 70 injured. He apparently had a recent change in his schedule to an early-morning shift.   After the accident, the conductor was evaluated by a Board Certified physician in Sleep Medicine, who also performed a non-invasive polysomnography that revealed severe obstructive sleep apnea. He had a BMI of 34 kg/m2 and an initial Epworth Sleepiness Score of 12. No pre-accident screening or evaluation was performed for sleep apnea. Click http://nyti.ms/1kivaQ0 for the New York Times article.

To view the Medical Factual Report from the National Transportation Safety Board and for full details of the medical and sleep study report click the following link:  http://nyti.ms/1kKyQpA.