Department of Medical Sciences, University of Ferrara, 44121 Ferrara, Italy.
Obstetrics & Gynecology Unit, Department of Reproduction and Growth, Azienda Ospedaliero-Universitaria "S. Anna", 44124 Ferrara, Italy.
Int J Environ Res Public Health. 2020 Nov 3;17(21):8091. doi: 10.3390/ijerph17218091.
(1) Background: Although the current literature shows that daylight saving time (DST) may play a role in human health and behavior, this topic has been poorly investigated with reference to Obstetrics. The aim of this case-control study was to evaluate whether DST may influence the number of spontaneous deliveries. (2) Methods: A low-risk pregnancy cohort with spontaneous onset of labor ( = 7415) was analyzed from a single Italian region for the period 2016-2018. Primary outcome was the number of spontaneous deliveries. Secondary outcomes were: gestational age at delivery, type and time of delivery, use of analgesia, birth weight, and 5-min Apgar at delivery. We compared the outcomes in the two weeks after DST (cases) to the two weeks before DST (controls). (3) Results: Data showed no significant difference between the number of deliveries occurring before and after DST (Chi-square = 0.546, = 0.46). Vaginal deliveries at any gestational age showed no statistical difference between the two groups (Chi-square = 0.120, = 0.73). There were no significant differences in the secondary outcomes, as well. (4) Conclusions: DST has neither a significant impact on the number of deliveries nor on the obstetric variables investigated by this study.
(1) 背景：尽管目前的文献表明夏令时（DST）可能对人类健康和行为有一定影响，但该主题在妇产科领域的研究还很少。本病例对照研究旨在评估 DST 是否会影响自然分娩的数量。(2) 方法：我们分析了 2016 年至 2018 年意大利某单一地区低危妊娠、自发性临产的队列（n=7415）。主要结局为自然分娩的数量。次要结局为：分娩时的孕周、分娩类型和时间、镇痛的使用、出生体重和分娩时 5 分钟 Apgar 评分。我们比较了 DST 前后两周（病例）的结局与 DST 前两周（对照）的结局。(3) 结果：数据显示，DST 前后分娩数量无显著差异（卡方=0.546，=0.46）。两组各孕周的阴道分娩也无统计学差异（卡方=0.120，=0.73）。其他次要结局也无显著差异。(4) 结论：本研究未发现 DST 对分娩数量或所研究的产科变量有显著影响。
