Sakurai Kenji, Nakata Aknori, Ikeda Tomoko, Otsuka Yasumasa, Kawahito Junko
School of Economics, Nihon University, Tokyo, Japan.
Arch Environ Occup Health. 2014;69(1):23-32. doi: 10.1080/19338244.2012.713040.
This study explored whether workplace interpersonal conflict (WIC) is associated with insomnia, and whether the relationship between WIC and insomnia differs across different employment groups. A total of 37,646 Japanese full-time employees participated in a cross-sectional survey. Employment types included permanent employment and 2 forms of temporary employment: direct-hire and temporary work agent (TWA). Insomnia symptoms, including difficulty initiating sleep, difficulty maintaining sleep, and early morning awakening were measured. Insomnia was defined as having experienced 1 or more of these symptoms on ≥3 nights per week over the past 12 months. Results showed that WIC was significantly associated with an increased risk of insomnia (odds ratio OR = 1.63; 95% confidence interval CI = 1.55-1.71), controlling for confounders. However, the relationship between WIC and the risk of insomnia was significantly stronger for TWAs than for permanent employees (OR = 1.97; 95% CI = 1.13-3.45). A frequent exposure to WIC may increase the risk of insomnia, particularly for TWAs.
本研究探讨职场人际冲突（WIC）是否与失眠相关，以及WIC与失眠之间的关系在不同就业群体中是否存在差异。共有37646名日本全职员工参与了一项横断面调查。就业类型包括长期雇佣以及两种临时雇佣形式：直接雇佣和临时工作中介（TWA）。测量了失眠症状，包括入睡困难、睡眠维持困难和早醒。失眠被定义为在过去12个月中每周≥3个晚上出现1种或以上这些症状。结果显示，在控制混杂因素后，WIC与失眠风险增加显著相关（优势比OR = 1.63；95%置信区间CI = 1.55 - 1.71）。然而，WIC与失眠风险之间的关系在临时工作中介员工中比长期员工显著更强（OR = 1.97；95%CI = 1.13 - 3.45）。频繁暴露于WIC可能会增加失眠风险，尤其是对于临时工作中介员工。
