J Drugs Dermatol. 2023 Mar 1;22(3):274-281. doi: 10.36849/JDD.7309.
The shape, proportion, and fullness of one's lips are associated with overall facial beauty and attractiveness. Lip augmentation, due to personal preference or to reverse natural aging, has become a standard clinical procedure to improve lip volume or proportion. Several options are available to redefine the lips. To objectively evaluate treatment-related improvements in clinical practice and research, a validated photonumeric scale is needed.
To present scale-development methods for the Merz Lip Fullness Assessment Scale (MLFAS) and establish its reliability.
A 5-point photonumeric scale was developed to objectively assess loss of lip volume using male and female subjects of various ages and skin types. To establish intra- and interrater reliability, 8 board-certified dermatologists and plastic surgeons evaluated 64 subjects live in 2 sessions, 2 weeks apart.
The weighted kappa for intra- and interrater agreement were ≥ 0.6 in all cases. Intrarater agreement between the 2 rating sessions was nearly perfect (median weighted kappa = 0.911 and 0.930 for the upper lip and lower lip, respectively). Substantial interrater agreement between each rater pair was also demonstrated for both rating sessions, and ratings of upper and lower lip fullness showed comparable reliability.
The MLFAS is a validated and reliable photonumeric scale for rating loss in lip volume. The scale maintains its reliability with reproducible results across a diverse group of males and females of various ages and Fitzpatrick skin types. J Drugs Dermatol. 2023;22(3): doi:10.36849/JDD.7309.
嘴唇的形状、比例和丰满度与整体面部美观和吸引力有关。由于个人喜好或逆转自然衰老，唇部丰满术已成为一种标准的临床程序，以增加嘴唇的体积或比例。有几种方法可以重新定义嘴唇。为了在临床实践和研究中客观评估与治疗相关的改善，需要使用经过验证的光电数字量表。
介绍 Merz 唇部丰满度评估量表 (MLFAS) 的量表开发方法并建立其可靠性。
使用不同年龄和皮肤类型的男性和女性受试者开发了一个 5 分光电数字量表，以客观评估嘴唇体积的丧失。为了建立内部和内部评分者之间的可靠性，8 位经过董事会认证的皮肤科医生和整形外科医生在 2 个独立的会议上评估了 64 名受试者，间隔 2 周。
在所有情况下，内部和内部评分者之间的加权 Kappa 值均为≥0.6。在两次评分会议中，内部评分者之间的一致性几乎是完美的（上唇和下唇的中位数加权 Kappa 值分别为 0.911 和 0.930）。在两次评分会议中，每个评分者之间的相互评分者之间也表现出实质性的一致性，并且上唇和下唇丰满度的评分显示出可比的可靠性。
MLFAS 是一种经过验证和可靠的光电数字量表，用于评估嘴唇体积的丧失。该量表在具有不同年龄和 Fitzpatrick 皮肤类型的男性和女性多样化群体中具有可重复性和可靠性。J 皮肤病学药物。2023;22(3):doi:10.36849/JDD.7309.
