Department of Women's and Children's Health, Uppsala University, 751 85, Uppsala, Sweden.
Department of Neuroscience, Psychiatry, Uppsala University, 751 85, Uppsala, Sweden.
Sci Rep. 2020 Oct 29;10(1):18701. doi: 10.1038/s41598-020-73663-3.
The Transgender Congruence Scale (TCS) is a non-binary tool used in Sweden for gender dysphoria (GD) assessment; however, its Swedish version has not been validated. To investigate the psychometric properties of the TCS, its capacity to distinguish individuals with GD and its concurrent validity compared to other scales. Patients with GD (n = 135) and controls (n = 443) filled in a questionnaire containing sociodemographic questions, the TCS, the Utrecht Gender Dysphoria Scale (UGDS), and the Gender Identity/Gender Dysphoria Questionnaire for Adolescents and Adults (GIDYQ-AA). TCS had good discriminatory validity and internal consistency. Patients with GD, stratified by birth-assigned sex, had lower TCS scores compared to controls. Confirmatory factor analysis (CFA) supported the two-factor model of the TCS. Multiple-group CFA suggested measurement invariance between birth-assigned sexes and configural invariance between patients with GD and controls. Area under the ROC curve for birth-assigned males was 0.991 and for females 0.994. A TCS mean value of three provided sensitivity 94.3% and 95.1% as well as specificity 98.6% and 98% for aM and aF, respectively. The TCS was significantly correlated to UGDS and GIDYQ-AA. The TCS may be a valuable tool in the clinical assessment of individuals with GD.
跨性别一致性量表（TCS）是一种非二进制工具，用于评估性别焦虑症（GD）；然而，其瑞典版本尚未得到验证。本研究旨在调查 TCS 的心理测量特性、区分 GD 个体的能力以及与其他量表的同时效度。GD 患者（n=135）和对照组（n=443）填写了一份问卷，其中包括社会人口学问题、TCS、乌得勒支性别焦虑症量表（UGDS）和青少年及成人性别认同/性别焦虑症问卷（GIDYQ-AA）。TCS 具有良好的区分效度和内部一致性。按出生性别分层的 GD 患者的 TCS 评分低于对照组。验证性因子分析（CFA）支持 TCS 的两因素模型。多组 CFA 表明 TCS 在出生性别之间具有测量不变性，在 GD 患者和对照组之间具有构念不变性。出生性别为男性的 ROC 曲线下面积为 0.991，女性为 0.994。TCS 的平均值为 3 时，aM 和 aF 的敏感性分别为 94.3%和 95.1%，特异性分别为 98.6%和 98%。TCS 与 UGDS 和 GIDYQ-AA 显著相关。TCS 可能是评估 GD 个体的有用工具。
