Skin hyperpigmentation index in melasma: A complementary method to classic scoring systems.

Heidemeyer, Kristine; Cazzaniga, Simone; Feldmeyer, Laurence; Imstepf, Valentina; Adatto, Maurice; Lehmann, Matthias; Rammlmair, Anna; Pelloni, Lorenzo; Jafari, S Morteza Seyed; Bossart, Simon (2023). Skin hyperpigmentation index in melasma: A complementary method to classic scoring systems. Journal of cosmetic dermatology, 22(12), pp. 3405-3412. Blackwell Science 10.1111/jocd.15866

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BACKGROUND

Due to relapsing nature of melasma with significant impact on quality of life, an objective measurement score is warranted, especially to follow-up the patients with melasma and their therapy response in a quantitative and precise manner.

AIMS

To prove concordance of skin hyperpigmentation index (SHI) with well-established scores in melasma and demonstrate its superiority regarding inter-rater reliability. Development of SHI mapping for its integration in common scores.

METHODS

Calculation of SHI and common melasma scores by five dermatologists. Inter-rater reliability was assessed by intraclass correlation coefficient (ICC) and concordance by Kendall correlation coefficient.

RESULTS

Strong concordance of SHI with melasma area and severity index (MASI)-Darkness (0.48; 95% CI: 0.32, 0.63), melasma severity index (MSI)-Pigmentation (0.45; 95% CI: 0.26, 0.61), and melasma severity scale (MSS) (0.6; 95% CI: 0.42, 0.74). Using step function for mapping SHI into pigmentation scores showed an improvement of inter-rater reliability with a difference in (ICC of 0.22 for MASI-Darkness and 0.19 for MSI-Pigmentation), leading to an excellent agreement.

CONCLUSION

Skin hyperpigmentation index could be an important additional cost-and time-conserving assessment method, to follow-up the patients with melasma undergoing brightening therapies in clinical studies, as well as in routine clinical practice. It is in strong concordance with well-established scores but superior regarding inter-rater reliability.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Dermatology, Urology, Rheumatology, Nephrology, Osteoporosis (DURN) > Clinic of Dermatology

UniBE Contributor:

Heidemeyer, Kristine, Cazzaniga, Simone, Feldmeyer, Laurence, Imstepf, Valentina Anna, Adatto, Maurice Alfred, Rammlmair, Anna, Pelloni, Lorenzo Stefano, Jafari, Morteza, Bossart, Simon

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1473-2130

Publisher:

Blackwell Science

Language:

English

Submitter:

Pubmed Import

Date Deposited:

27 Jun 2023 10:50

Last Modified:

03 Dec 2023 00:12

Publisher DOI:

10.1111/jocd.15866

PubMed ID:

37349912

Uncontrolled Keywords:

melasma score skin hyperpigmentation index

BORIS DOI:

10.48350/184086

URI:

https://boris.unibe.ch/id/eprint/184086

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