Previous research has shown that individuals with obsessive-compulsive disorder (OCD) and OCD symptoms have higher rates of childhood trauma. Although it has been suggested that this relationship is due to mental contamination that developed in response to trauma, no studies have investigated the associations between childhood trauma, mental contamination, and OCD, and none have examined whether the relationship between childhood trauma and OCD is mediated by mental contamination. We hypothesized that OCD, childhood trauma, and mental contamination are positively correlated, and that mental contamination would mediate the association between childhood trauma and OCD symptoms We tested these hypotheses in a sample of 245 individuals, which comprised 158 MTurk workers recruited via and 87 individuals recruited through social media with OCD diagnoses or OCD symptoms above the clinical cutoff on the Obsessive-Compulsive Inventory-Revised. Participants completed online self-report questionnaires on childhood trauma, mental contamination, and OCD symptoms. The results revealed statistically significant positive correlations between childhood trauma, mental contamination, and OCD, and statistically significant total and indirect effects for the simple mediational model. Exploratory re-analyses with participants who had high OCD symptoms ( = 87) showed similar results. Our research shows that the association between childhood trauma and OCD may be explained by mental contamination. We recommend that mental contamination should be assessed and addressed in OCD patients with a history of childhood trauma.

中文翻译：

---

精神污染是否介导童年创伤与成人强迫症状之间的关联？

先前的研究表明，患有强迫症（OCD）和强迫症症状的人遭受童年创伤的几率更高。尽管有人认为这种关系是由于对创伤的反应而产生的精神污染造成的，但没有研究调查童年创伤、精神污染和强迫症之间的关联，也没有研究调查童年创伤和强迫症之间的关系是否是中介的。受到精神污染。我们假设强迫症、童年创伤和精神污染是正相关的，并且精神污染会介导童年创伤和强迫症症状之间的关联。我们在 245 名个体样本中测试了这些假设，其中包括 158 名通过 MTurk 招募的员工和 87 名个体通过社交媒体招募强迫症诊断或强迫症症状高于强迫症清单修订版临床截止值的人。参与者完成了关于童年创伤、精神污染和强迫症症状的在线自我报告调查问卷。结果显示，童年创伤、精神污染和强迫症之间存在统计显着的正相关性，并且简单中介模型的总效应和间接效应具有统计显着性。对具有高度强迫症症状的参与者 (= 87) 进行的探索性重新分析显示了类似的结果。我们的研究表明，童年创伤与强迫症之间的关联可能可以用精神污染来解释。我们建议对有童年创伤史的强迫症患者进行精神污染评估和解决。