Private Practice, Torino, Italy.
Clínica Mira and Cueto, Madrid, Spain.
Dermatol Surg. 2024 Feb 1;50(2):172-177. doi: 10.1097/DSS.0000000000004040. Epub 2023 Dec 14.
A validated scale is needed for objective and reproducible comparisons of marionette lines before and after treatment in clinical studies.
To describe the development and validation of a 5-point photonumeric marionette lines scale.
The scale was developed to include an assessment guide, verbal descriptors, and real and morphed subject images for each scale grade. Intrarater and interrater reliability was evaluated in initial scale validation (web-based review) ( N = 51 ) and live-subject validation ( N = 75 ) studies, each completed during 2 sessions.
In the initial scale validation study, intrarater agreement for 2 physician raters was near perfect (weighted kappa = 0.92 and 0.94). Interrater agreement was excellent during sessions 1 and 2 (intraclass correlation coefficients of 0.94 and 0.95, respectively). In the live-subject validation study, intrarater agreement for 3 physician raters showed a strong correlation (mean weighted kappa = 0.77). Interrater agreement was high during live-subject validation sessions 1 and 2 (intraclass correlation coefficients = 0.89 for both sessions).
This new marionette lines scale is a validated and reliable scale for physician rating of marionette line severity.
在临床研究中，需要一种经过验证的量表，以便对木偶线治疗前后进行客观和可重复的比较。
描述 5 分光电木偶线量表的开发和验证。
该量表的开发包括评估指南、口头描述以及每个等级的真实和变形的受试者图像。在初步量表验证（基于网络的回顾）（N=51）和活体受试者验证（N=75）研究中评估了内部和外部评估者的可靠性，每个研究都在 2 个阶段完成。
在初步量表验证研究中，2 名医生评估者的内部评估者一致性接近完美（加权kappa=0.92 和 0.94）。第 1 阶段和第 2 阶段的外部评估者一致性非常好（分别为 0.94 和 0.95 的组内相关系数）。在活体受试者验证研究中，3 名医生评估者的内部评估者一致性显示出很强的相关性（平均加权kappa=0.77）。第 1 阶段和第 2 阶段的活体受试者验证外部评估者一致性很高（两个阶段的组内相关系数均为 0.89）。
这个新的木偶线量表是一种经过验证和可靠的医生评估木偶线严重程度的量表。
