BACKGROUND Patients with temporomandibular joint disorder (TMD) often complain of pain in other areas. Several studies have been conducted on spinal pain in TMD patients, but have contained only limited information. Therefore, this study analyzed the relationship between TMD and spinal pain in greater detail by using nationwide data. METHODS A total of 12,375 TMD patients from the Korean National Health Insurance Review and Assessment database were analyzed. Controls were selected using propensity score-matching. The McNemar test, chi-square test, and paired t-test were used to compare the prevalence and severity of spinal pain between cases and matched controls. Logistic regression and linear regression models were used to analyze factors affecting the prevalence and severity of spinal pain in patients with TMD. RESULTS The annual period prevalence of TMD was 1.1%. The prevalence was higher in younger individuals than in individuals of other ages and was higher in women than in men. The medical expenditure for TMD per person was $86. Among TMD patients, 2.5% underwent surgical procedures and 0.3% were hospitalized. The prevalence of spinal pain in patients with TMD was 48%, whereas that in the control group was 34%. Increased severity of TMD was associated with an increased probability of spinal pain. The medical expenditure, mean number of visits, and lengths of treatment for spinal pain were greater for patients with TMD than for controls ($136 vs. $81, 4.8 days vs. 2.7 days, 5.5 days vs. 3.3 days). Higher TMD grade was associated with greater differences in average medical expenditure, number of visits, and lengths of treatment for spinal pain between cases and controls. Additionally, for women, living in a rural area and having an older age and more severe TMD were associated with a greater probability of spinal pain and higher medical expenditure related to spinal pain. CONCLUSION A strong association was observed between the presence of TMD and the presence of spinal pain. The association became stronger as the severity of TMD increased, indicating a positive correlation between the severity of TMD and spinal pain.

中文翻译：

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韩国脊柱疼痛与颞下颌关节疾病之间的关系：一项全国性倾向得分匹配研究。

背景技术患有颞下颌关节疾病（TMD）的患者经常抱怨其他部位的疼痛。已经对TMD患者的脊柱痛进行了几项研究，但仅包含有限的信息。因此，本研究通过使用全国性数据更详细地分析了TMD与脊柱疼痛之间的关系。方法对来自韩国国民健康保险审查与评估数据库的12375名TMD患者进行了分析。使用倾向得分匹配选择对照。使用McNemar检验，卡方检验和配对t检验来比较病例与匹配对照组之间脊柱疼痛的患病率和严重程度。Logistic回归和线性回归模型用于分析影响TMD患者脊柱疼痛发生率和严重程度的因素。结果TMD的年发病率为1.1％。年轻年龄段的患病率高于其他年龄段的患病率，女性的患病率高于男性。每人TMD的医疗支出为86美元。在TMD患者中，有2.5％接受了外科手术，有0.3％接受了住院治疗。TMD患者的脊柱疼痛患病率为48％，而对照组的患病率为34％。TMD的严重程度增加与脊柱疼痛的可能性增加有关。TMD患者的医疗支出，平均就诊次数和脊髓痛的治疗时间长于对照组（136美元vs. 81美元，4.8天vs. 2.7天，5.5天vs. 3.3天）。TMD等级越高，平均医疗费用，就诊次数，病例与对照之间的脊柱疼痛治疗时间和疗程。另外，对于妇女而言，生活在农村地区，年龄较大，TMD较重与脊柱疼痛的可能性更高以及与脊柱疼痛相关的医疗费用较高有关。结论观察到TMD的存在与脊柱疼痛的存在密切相关。随着TMD严重程度的增加，这种关联变得更强，表明TMD严重程度与脊柱疼痛之间呈正相关。