Rockwood Todd H, Constantine Melissa L, Adegoke Olusola, Rogers Rebecca G, McDermott Elektra, Davila G Willy, Domoney Claudine, Jha Swati, Kammerer-Doak Dorothy, Lukacz Emily S, Parekh Mitesh, Pauls Rachel, Pitkin Joan, Reid Fiona, Ridgeway Beri, Thakar Ranee, Sand Peter K, Sutherland Suzette E, Espuna-Pons Montserrat
Division of Health Policy and Management, University of Minnesota, 420 Delaware Street SE MMC 729, 55455 Minneapolis, MN, USA.
Int Urogynecol J. 2013 Jul;24(7):1105-22. doi: 10.1007/s00192-012-2037-z. Epub 2013 Apr 30.
This paper provides a detailed discussion of the psychometric analysis and scoring of a revised measure of sexual function in women with pelvic floor disorders (PFD): the Pelvic Organ Prolapse Incontinence Sexual Questionnaire, IUGA-Revised (PISQ-IR).
Standard tools for evaluating item distributions, relationships, and psychometric properties were used to identify sub-scales and determine how the sub-scales should be scored. The evaluation of items included a nonresponse analysis, the nature of missingness, and imputation methods. The minimum number of items required to be answered and three different scoring methods were evaluated: simple summation, mean calculation, and transformed summation.
Item nonresponse levels are low in women who are sexually active and the psychometric properties of the scales are robust. Moderate levels of item nonresponse are present for women who are not sexually active, which presents some concerns relative to the robustness of the scales. Single imputation for missing items is not advisable and multiple imputation methods, while plausible, are not recommended owing to the complexity of their application in clinical research. The sub-scales can be scored using either mean calculation or transformed summation. Calculation of a summary score is not recommended.
The PISQ-IR demonstrates strong psychometric properties in women who are sexually active and acceptable properties in those who are not sexually active. To score the PISQ-IR sub-scales, half of the items must be answered, imputation is not recommended, and either mean calculation or transformed sum methods are recommended. A summary score should not be calculated.
本文详细讨论了盆底功能障碍（PFD）女性性功能修订测量方法的心理测量分析和评分：盆底器官脱垂尿失禁性功能问卷，国际尿控学会修订版（PISQ-IR）。
使用评估项目分布、关系和心理测量特性的标准工具来识别子量表，并确定子量表的评分方式。项目评估包括无应答分析、缺失性质和插补方法。评估了回答所需的最少项目数量以及三种不同的评分方法：简单求和、均值计算和变换求和。
性活跃女性的项目无应答水平较低，量表的心理测量特性稳健。性不活跃女性存在中等水平的项目无应答，这对量表的稳健性存在一些担忧。缺失项目的单一插补不可取，多重插补方法虽然合理，但由于其在临床研究中的应用复杂性而不被推荐。子量表可以使用均值计算或变换求和进行评分。不建议计算总分。
PISQ-IR在性活跃女性中表现出强大的心理测量特性，在性不活跃女性中表现出可接受的特性。为PISQ-IR子量表评分时，必须回答一半的项目，不建议进行插补，建议使用均值计算或变换求和方法。不应计算总分。
