An epidemiological study on the associations of sleep-disordered breathing with subjective alertness among local police officers

日本警察的超重比例高于一般人群，因此我们推测警察可能更容易发生睡眠呼吸障碍（SDB）。本研究的目的是：1）阐明SDB的患病率; 2）检查SDB与肥胖的关系; 3）检查SDB与日本警察的主观嗜睡和客观警觉的关系。我们发现，警察中SDB和超重的患病率分别约为20%和50%以上。我们还观察到年龄和BMI与3%氧减饱和指数呈正相关。结果发现，睡眠障碍的严重程度与主观嗜睡和客观警觉指标均呈正相关，但睡眠障碍与客观警觉和主观嗜睡的关系对睡眠障碍的预测能力无差异。

Police officers in Japan have more proportion of overweight than general population; therefore we presumed that police officers might be more prevalent in sleep-disordered breathing (SDB). The objectives of this study are 1) to clarifythe prevalence of SDB; 2) to examine the associations of SDB with obesity; 3) to examine the associations of SDB with subjective sleepiness and objective alertness among Japanese police officers. We found that the prevalence of SDB and overweight among police officers were approximately 20% and more than 50%, respectively. We also observed the positive associations of age and BMI with 3% oxygen desaturation index. We found that the severity of SDB was positively associated with both subjective sleepiness and objective alertness indicators, but there were no differences of prediction ability for SDB between relationship of SDB with objective alertness and that with subjective sleepiness.