Department of Urology, Eulji University Hospital, Daejeon, Korea.
J Endourol. 2012 Nov;26(11):1518-22. doi: 10.1089/end.2012.0235. Epub 2012 Sep 17.
We validated the Korean version of the Ureteral Stent Symptoms Questionnaire (USSQ) in patients with an indwelling ureteral stent.
Linguistic validation of the original USSQ was performed through a standard process including translation, back translation, and pilot study. A total of 65 patients who underwent ureteroscopic surgery were asked to complete the Korean USSQ as well as EuroQOL (male and female), the International Prostate Symptom Score (male), and Urogenital Distress Inventory-6 (female). Patients were evaluated at weeks 1 and 2 after stent placement and at week 4 after removal. Sixty-four healthy subjects without a ureteral stent were also asked to complete the Korean USSQ once. The psychometric properties of the questionnaire were analyzed.
Internal consistencies (Cronbach α coefficients: 0.73-0.83) and test-retest reliability (Spearman correlation coefficient: ≥0.6) were satisfactory for urinary symptom, body pain, general health, and work performance domains. Most USSQ domains showed moderate correlations with each other. Convergent validity determined by correlation between other instruments and corresponding USSQ domain was satisfactory. Sensitivity to change and discriminant validity were also good in most domains (P<0.01). Only a small proportion of the study population had an active sexual life, with the stent in situ, limiting its analysis.
The Korean version of the USSQ is a reliable and valid instrument that can be self-administered by Korean patients with a ureteral stent in the clinical and research settings. Further clinical studies in the Korean settings would be useful to provide robust data on sensitivity to change.
我们验证了留置输尿管支架患者的韩国版输尿管支架症状问卷（USSQ）。
通过包括翻译、回译和预试验在内的标准流程对原始 USSQ 进行了语言验证。共有 65 名接受输尿管镜手术的患者被要求填写韩国版 USSQ 以及 EuroQOL（男性和女性）、国际前列腺症状评分（男性）和尿生殖窘迫量表-6（女性）。患者在支架置入后 1 周和 2 周以及移除后 4 周进行评估。还要求 64 名无输尿管支架的健康受试者填写一次韩国 USSQ。分析了问卷的心理测量特性。
在尿症状、身体疼痛、一般健康和工作表现领域，内部一致性（Cronbach α 系数：0.73-0.83）和测试-重测信度（Spearman 相关系数：≥0.6）令人满意。大多数 USSQ 领域彼此之间存在中度相关性。通过与其他仪器的相关性确定的收敛效度令人满意。大多数领域的变化敏感性和判别效度也很好（P<0.01）。只有一小部分研究人群在支架在位时有活跃的性生活，限制了其分析。
韩国版 USSQ 是一种可靠且有效的工具，可在临床和研究环境中由韩国留置输尿管支架的患者自行使用。在韩国环境中进行进一步的临床研究将有助于提供对变化敏感性的有力数据。
