An epidemiological approach to daylight discomfort glare
An epidemiological approach to daylight discomfort glare
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DOI：
10.1016/j.buildenv.2016.09.028
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发表时间：
2017-02
影响因子：
7.4
通讯作者：
R. Rodriguez;J. Y. Garretón;A. Pattini
中科院分区：
文献类型：
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作者：
R. Rodriguez;J. Y. Garretón;A. Pattini
本文试图将源自医学学科的分析方法扩展到办公环境中的不适眩光评估。流行病学关注特定人群中健康相关事件的发生、预防和控制。将不舒适眩光理解为职业风险因素，将眩光指数理解为其诊断测试，使我们能够借用流行病学领域开发的性能指标来充分表征一些公认的、尽管不完美的不舒适眩光诊断方法的诊断准确性。为了证明这种方法的适用性，我们在三个不同的日光实验场景中，将日光眩光指数、日光眩光概率、眼睛垂直照度和眼睛张开程度的结果与随机样本 (n = 45) 的参考标准进行了比较。我们计算了敏感性、特异性、似然比、约登指数和受试者工作特征曲线。我们的结果显示所评估的日光眩光指数的诊断性能可接受。我们定义了一个标准来评估任何不适眩光诊断方法的优劣，并提出了一种通过根据特定诊断要求选择适当的截止点来优化其性能的方法。最后，我们讨论了流行病学方法的好处和影响，并探讨了未来的研究方向，以提高我们预测和评估日光不适眩光的发生和程度的能力。
This paper attempts to extend methodologies of analysis derived from medical disciplines into discomfort glare assessment in office environments. Epidemiology is concerned with the occurrence, prevention and control of health-related events in specific populations. Understanding discomfort glare as an occupational risk factor and glare indexes as its diagnostic tests, allowed us to borrow performance metrics developed in the field of Epidemiology to fully characterize the diagnostic accuracy of some of the accepted, albeit imperfect, discomfort glare diagnostic methods. To demonstrate the applicability of this approach, we compared the results of daylight glare index, daylight glare probability, vertical illuminance at the eye, and degree of eye opening with a reference standard from a random sample (n = 45) in three different daylit experimental scenarios. We calculated the sensitivity, specificity, likelihood ratios, Youden's index, and receiver operating characteristic curves. Our results showed an acceptable diagnostic performance of the evaluated daylight glare indexes. We defined a criterion to assess the goodness of any discomfort glare diagnostic method and presented a method to optimize their performance by selecting the proper cutoff point according to specific diagnostic requirements. Finally, we discussed the benefits and implications of the epidemiological approach and explored future research directions in order to improve our ability to predict and asses the occurrence and magnitude of daylight discomfort glare.