OBJECTIVES The current results show that lower urinary tract symptoms (LUTS) and erectile dysfunction (ED) are co-prevalent conditions. The objective of this study was to determine which LUTS among seven items on the International Prostate Symptom Scores (IPSS) were related to ED in the general population. METHODS The Korean Internet Sexuality Survey was performed in 2006 and 2016. We sent emails and surveyed the panelists registered at an Internet survey agency. The inclusion criteria were sexually active men aged between 20 and 69. Data, including the International Index of Erectile Function-5 (IIEF-5) and IPSS scores were extracted from the surveys. Logistic regression analyses were performed to determine the factors related to 'any degree of ED' (IIEF-5 < 22) or 'more than mild ED' (IIEF-5 < 17). RESULTS The mean age of 1464 men was 39.2 ± 11.4 years. The mean total IPSS and IIEF-5 scores were 7.2 ± 6.5 and 20.8 ± 3.3 points, respectively. The IIEF-5 and total IPSS scores showed significant negative relationships (r = - 0.251, p < 0.001). Among the seven IPSS items, IPSS 5 (weak stream, r = - 0.243, p < 0.001) was most strongly correlated with the IIEF-5 scores. On multivariate analysis, IPSS 3 (intermittency, OR 0.160, 95% CI 1.010-1.333, p = 0.035) and IPSS 7 (nocturia, OR 1.238, 95% CI 1.077-1.423, p = 0.003) were significantly related to 'any degree of ED'. 'More than mild ED' was significantly related to IPSS 5 (weak stream, OR 1.267, 95% CI 1.058-1.518, p = 0.010). CONCLUSIONS Every LUTS listed in the IPSS items was negatively correlated with erectile function. Among the seven IPSS items, IPSS 5 (weak stream) was the most related to 'more than mild ED'.

中文翻译：

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韩国互联网性调查（KISS）中每个IPSS项得分与勃起功能障碍之间的关系：流弱的男性性功能低吗？

目的目前的结果表明，下尿路症状（LUTS）和勃起功能障碍（ED）是共同流行的疾病。这项研究的目的是确定国际前列腺症状评分（IPSS）的七个项目中的哪个LUTS与普通人群的ED相关。方法在2006年和2016年进行了韩国互联网性调查。我们发送了电子邮件，并对在互联网调查机构注册的小组成员进行了调查。纳入标准为年龄在20至69岁之间的性活跃男性。数据包括国际勃起功能指数5（IIEF-5）和IPSS得分均来自调查。进行逻辑回归分析以确定与“任何程度的ED”（IIEF-5 <22）或“超过轻度ED”（IIEF-5 <17）相关的因素。结果1464名男性的平均年龄为39.2±11.4岁。IPSS和IIEF-5的平均总得分分别为7.2±6.5和20.8±3.3分。IIEF-5和IPSS总分显示出显着的负相关（r =-0.251，p <0.001）。在这七个IPSS项目中，IPSS 5（弱流，r =-0.243，p <0.001）与IIEF-5得分最相关。在多变量分析中，IPSS 3（间断性或OR 0.160,95％CI 1.010-1.333，p = 0.035）和IPSS 7（夜尿或OR 1.238,95％CI 1.077-1.423，p = 0.003）与``任何程度''均显着相关ED”。“超过轻度ED”与IPSS 5显着相关（弱流，或1.267，95％CI 1.058-1.518，p = 0.010）。结论IPSS项目中列出的每个LUTS与勃起功能均呈负相关。在IPSS的七个项目中，