AIM OF THE STUDY Analyze the association between social health determinants (SHD) and chronic post-surgical pain (CPSP) after total knee arthroplasty (TKA). METHOD A cross-sectional study was performed in 58 TKA patients. The subjects were classified in two groups: with (n = 22) or without (n = 36) CPSP. SHD considered were gender, age, educational level, economic income, and labour conditions. RESULTS Significant differences were found concerning educational level when comparing subjects with or without CPSP, with a low educational level of 22.4% and 19%, respectively. 15.5% of patients with persistent pain had a high educational level compared with 43.1% of the patients without persistent pain (p = 0.032). No significant differences were found for the other categories (p > 0.05). The odds ratio (95% confidence interval) was 3.28 (1.09-9.93) for lower educational level compared with high educational level. DISCUSSION CPSP must be considered a severe health problem. In addition to SDH, there are multiple factors associated with chronic pain after TKA that must be considered for an effective treatment. CONCLUSIONS Patients with lower educational level showed a three-time higher association to develop CPSP. Considering SHD could be of relevance when elaborating new interventions or health strategies and more specialized counseling for patients with persistent pain after TKA.

中文翻译：

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与全膝关节置换术后慢性疼痛相关的社会决定因素。

研究目的分析全膝关节置换术（TKA）后社会健康决定因素（SHD）与慢性手术后疼痛（CPSP）之间的关联。方法对58名TKA患者进行横断面研究。将受试者分为两组：有（n = 22）或没有（n = 36）CPSP。SHD的考虑因素包括性别，年龄，教育程度，经济收入和劳动条件。结果在比较有或没有CPSP的科目时，发现教育水平存在显着差异，分别为22.4％和19％。持续性疼痛患者中有15.5％的人受过高等教育，而没有持续性疼痛的患者中有43.1％（p = 0.032）。其他类别没有发现显着差异（p> 0.05）。比值比（95％置信区间）为3.28（1.09-9）。93）低学历与高学历相比。讨论必须将CPSP视为严重的健康问题。除SDH之外，有效治疗还必须考虑与TKA术后慢性疼痛相关的多种因素。结论文化程度较低的患者发生CPSP的相关性是三倍。在为TKA后持续性疼痛的患者制定新的干预措施或健康策略以及更专业的咨询时，考虑SHD可能具有相关性。结论文化程度较低的患者发生CPSP的相关性是三倍。在为TKA后持续性疼痛的患者制定新的干预措施或健康策略以及更专业的咨询时，考虑SHD可能具有相关性。结论文化程度较低的患者发生CPSP的相关性是三倍较高。在为TKA后持续性疼痛的患者制定新的干预措施或健康策略以及更专业的咨询时，考虑SHD可能具有相关性。