ABSTRACT

The objective of this study was to perform a systematic literature review and meta-analysis to understand the BMI differences between different genders working fixed day shifts and rotating shifts. The Pubmed, Medline, and Embase databases were searched using set keywords, thereby producing 42 studies. Study quality was assessed using appraisal criteria from the Joanna Briggs Institute (JBI), and meta-analysis was performed using Comprehensive Meta-Analysis Software (CMA) version 3. The indices were the means and standard deviations of BMI values from different genders working fixed day shifts and rotating shifts. The participants of the studies included a total of 43,193 individuals working rotating shifts and 185,875 individuals working fixed day shifts. The pooling effect size (SMD, standardized mean difference) presented was 0.19. The 95% confidence interval ranged from 0.10 to 0.281. The meta-regression analysis results showed that women had higher BMI values than men, the difference was statistically significant (p <.001). The heterogeneity test indicated statistically significant differences (p <.05), and the percentage of heterogeneity (I square) was 97.91%, which indicates that a high degree of heterogeneity exists among studies. A subgroup analysis by gender was conducted. For women, the pooling effect size was 0.25, and the 95% confidence interval ranged from 0.20 to 0.30. For men, the pooling effect size was 0.19, and the 95% confidence interval ranged from 0.05 to 0.33. This meta-analysis found that both women and men working rotating shifts have significantly higher BMI values than those working fixed day shifts. Finally, we divided the data into a cross-sectional group and a cohort group based on study design, and a meta-regression analysis conducted after controlling for age and nature of work variables revealed that in the cohort study, women presented higher BMI values than men, and the difference was statistically significant (p =.010). Thus, in terms of long-term effects, these results indicate that working rotating shifts exerts a greater impact on the BMI of women.

摘要

这项研究的目的是进行系统的文献综述和荟萃分析，以了解工作固定日班和轮班的不同性别之间的BMI差异。使用设置的关键字搜索Pubmed，Medline和Embase数据库，从而产生42个研究。使用Joanna Briggs Institute（JBI）的评估标准评估研究质量，并使用综合Meta分析软件（CMA）版本3进行荟萃分析。指标是不同性别的BMI值的均值和标准偏差日班和轮班。研究的参与者包括总共43,193个人从事轮班工作和185,875个人从事固定日班工作。呈现的合并效应大小（SMD，标准化均值差）为0.19。95％的置信区间为0.10至0.281。荟萃回归分析结果显示，女性的BMI值高于男性，差异具有统计学意义（p <.001）。异质性检验显示出统计学上的显着差异（p<.05），异质性百分比（I平方）为97.91％，这表明研究之间存在高度异质性。进行了按性别的亚组分析。对于女性，合并效应大小为0.25，95％置信区间为0.20至0.30。对于男性，合并效应的大小为0.19，95％置信区间为0.05到0.33。这项荟萃分析发现，轮班工作的男女的BMI值均比轮班工作的男女的BMI值高得多。最后，我们根据研究设计将数据分为横断面组和队列组，在控制了工作变量的年龄和性质后进行的荟萃回归分析显示，在队列研究中，女性的BMI值高于男人们p = .010）。因此，就长期影响而言，这些结果表明，工作轮班对女性的BMI产生更大的影响。