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Updated: Jun 27, 2026

Measuring Psoriasis Severity at Home
Published on: March 1, 2024
Psoriasis in France and associated risk factors: results of a case-control study based on a large community survey
P Wolkenstein1, J Revuz, J C Roujeau
1Department of Dermatology, Albert Chenevier-Henri Mondor, Faculty of Medicine, Paris 12 University, Créteil, France. pierre.wolkenstein@hmn.aphp.fr
Background:
Risk factors for psoriasis have been identified.
Objective:
To precisely define these associated factors.
Methods:
A survey was conducted using a questionnaire on a representative sample of the French population. A case-control study was conducted. Cases were persons who declared having had psoriasis during the previous 12 months. For each case, 3 matched controls were selected. Cases and controls were compared using univariate and multivariate analyses.
Results:
The questionnaire was filled out and returned by 6,887 (68.9%) of 10,000 subjects aged 15 years and over; 356 cases were identified. In multivariate analysis, a higher body mass index, current and former smoking habits and beta-blocker intake were independently associated with a higher risk of psoriasis; intake of statins was associated with a decreased risk (p < 0.05).
Conclusions:
We confirmed the association of overweight, smoking habits and beta-blocker intake with psoriasis and reported a decreased risk associated with statin intake.
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