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To investigate the effect of night shift work on metabolic syndrome (MS) in railway workers.
In total 7 635 railway workers who took part in the physical examination in the First Affiliated Hospital of Guangdong Pharmaceutical University from September to December 2021 were selected as the research subjects. Logistic regression was used for correlation analysis and restricted cubic spline (RCS) was used to analyze the dose-response relationship.
The prevalence rate of metabolic syndrome in railway workers was 15.1%. After adjusting the confounding factors, former night shift (OR=1.198, 95%CI: 1.002-1.431) and current night shift (OR=1.219, 95%CI: 1.048-1.417), night shift duration of 6.0 ~ < 11.0 years (OR=1.323, 95%CI: 1.092-1.603) and ≥ 11.0 years (OR=1.256, 95%CI: 1.029-1.534), night shift twice a week (OR=1.269, 95%CI: 1.074-1.498), 3 times (OR=1.217, 95%CI: 1.001-1.479), and ≥ 4 times (OR=1.295, 95%CI:1.032-1.623) were significantly associated with the prevalence of MS in railway workers. The results of RCS showed that there was a linear positive correlation between the working years of night shift and the risk of MS (P total < 0.001, P non-linear=0.0760). The risk of MS began to increase after 1 year of night shift and reached the highest after 14.1 years.
Night shift work will lead to an increase in the risk of MS among railway workers, and the higher the number of years of night shift work, the higher the risk.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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