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. 2021 Jul;27(4):627-631.
doi: 10.1111/srt.12995. Epub 2020 Dec 27.

Development of a clinical scale to assess the severity of striae distensae

Verena Mony Paes de Freitas  1 , Hélio Amante Miot  2 , Luciane Donida Bartoli Miot  2 , Marcelle Almeida de Sousa Nogueira  3 , Samira Yarak  1 , Rogerio Tercio Ranulfo  4 , Gisele Jacobino de Barros Nunes  1 , Jose Antonio Sanches Junior  3 , Edileia Bagatin  1
Affiliations

Development of a clinical scale to assess the severity of striae distensae

Verena Mony Paes de Freitas et al. Skin Res Technol. 2021 Jul.

Abstract

Background and objective: There is no validated instrument to assess the clinical severity of striae distensae. Here, we aimed to develop a striae distensae severity scale.

Material and methods: After a Delphi-based consensus, 15 items related to striae severity were assessed in 110 areas (breasts, abdomen, and buttocks) from 45 participants. The items were analyzed through a partial least squares model to select the most important variables. To assess the reliability of the scale, 43 areas were retested.

Results: Of the 110 areas evaluated, 34 were breasts, 24 abdomens, and 52 buttocks. Striae were considered mild in 30% of the evaluations, moderate in 33%, severe in 21%, and extremely severe in 16%. The final model was composed by: width of the widest striae, width of the striae with the most frequent pattern, atrophy, number of affected quadrants, distribution (multiple or isolated), hypo or hyperchromia and topography. The scores of the scale demonstrated a high correlation with the clinical classification (rho = 0.77). There was a high agreement in the scores from the reassessed areas (intraclass correlation coefficient = 0.90).

Conclusion: An objective and reliable scale to assess the clinical severity of striae distensae on the breasts, abdomen, and buttocks was developed.

Keywords: clinical instruments; clinical outcomes; cosmetics; striae.

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References

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