The Modified Fitzpatrick Wrinkle Scale: A Clinical Validated Measurement Tool for Nasolabial Wrinkle Severity Assessment

Abstract

BACKGROUND The number of existing wrinkle assessment scales makes it difficult to compare the efficacy of cosmetic techniques in rejuvenating photoaged skin. A single and simple assessment scale that reliably quantifies wrinkle depth is needed.

Performance of intraclass correlation coefficient (ICC) as a reliability index under various distributions in scale reliability studies

“…Thus, the estimator $\hat{\rho }$ can be derived as 3$\hat{\rho }=\frac{{\hat{\sigma }}_a^2}{{\stackrel{true^}{\sigma }}_a^2+{\stackrel{true^}{\sigma }}_b^2+{\stackrel{true^}{\sigma }}_{\mathit{ab}}^2+{\stackrel{true^}{\sigma }}_{ϵ}^2}=\frac{\mathrm{italicBMS}-\mathrm{italicEMS}}{\mathrm{italicBMS}+\left(k-1\right)\mathrm{italicEMS}+\frac{k}{n}\left(\mathrm{italicJMS}-\mathrm{italicEMS}\right)}$where (a) BMS is the between‐subjects mean square in 4 and refers to the departure of the mean grade across repeated ratings on the i th subject from the overall mean; (b) JMS is the between‐raters mean square in 5 and refers to the departure of the mean across repeated ratings of the j th rater from the overall mean; and (c) EMS is the residual mean square in 6 and refers to the departure of the j th rater from their usual ratings on the i th subject. $\mathrm{italicBMS}=\frac{k{\sum }_{i=1}^n{\left({\overline{x}}_{i.}-{\overline{x}}_{..}\right)}^2}{n-1}$ $\mathrm{italicJMS}=\frac{n{\sum }_{j=1}^k{\left({\overline{x}}_{.j}-{\overline{x}}_{..}\right)}^2}{k-1}$ $\mathrm{italicEMS}=\frac{{\sum }_{i=1}^n{\sum }_{j=1}^k{\left(x_{\mathrm{italicij}}-{\overline{x}}_{i.}-{\overline{x}}_{.j}+{\overline{x}}_{..}\right)}^2}{\left(n-1\right)\left(k-1\right)}$…”

“…Scales that are a combination of phrases and photographs are known as photonumeric scales. In aesthetic studies, some examples of scales are measures for the degree of wrinkling,3, 4, 5, 6, 7, 8 lip fullness,9, 10, 11, 12 sagging,13 photodamage,14 and dyspigmentation,15 and they have been developed and evaluated using reliability indexes. In many aesthetic scale reliability studies, ICC is used to determine consistency, where a higher ICC signifies better consistency 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16…”

Improving Skin Aging, Skin Hydration and Sensitive Skin with Four Specific Skin Care Products: Results from a Single-Centre, Observational, Prospective Study

“…Sebum secretion, hydration and pH of the skin were measured with the Derma Unit-Combi 3 digital device (G. F. Secchi, Tavernerio, Italy). Wrinkles (Group 3) were evaluated according to the modified Fitzpatrick wrinkle scale (MFWS), which scores severity of nasolabial fold wrinkling by wrinkle depth ranging from 0 to 3 mm [13]. Evaluation of wrinkle severity was carried out by one blinded evaluator, who was initially trained on wrinkle assessment according to the MFWS on a test set of patients.…”

A Prospective Study of Knowledge and Perception towards the Efficacy of Anti-Aging Cosmetics among Female Population of Ras Al Khaimah, UAE

“…efficacy attributes of antiaging cosmetics and driving factors to purchase antiaging cosmetics, main skin concern with age, duration of use and monthly income and expenditure on antiaging cosmetics. For self-evaluation of fine lines and wrinkles of antiaging cosmetics Fitzpatrick wrinkle scale (clinically validated and originally used for nasaolabial fold wrinkles) was used to quantify the depth of wrinkles while studying the antiaging effects [11] [12] [13]. This classification was comprised of three main classes of wrinkling represented as 1, 2 and 3.5 indicating fine, moderate and deep wrinkles respectively (Table 1).…”