Comorbidities in Patients with Lichen Planopilaris: A Case-Control Study

Area of Science:

• Dermatology
• Autoimmune Diseases
• Epidemiology

Background:

• Lichen planopilaris (LPP) is a scarring alopecia with suspected autoimmune origins.
• Limited research exists on systemic conditions associated with LPP.

Purpose of the Study:

• To determine the prevalence of medical comorbidities in patients diagnosed with Lichen planopilaris.
• To investigate potential systemic conditions linked to LPP.

Main Methods:

• A retrospective case-control study design was employed.
• Medical records of 208 LPP patients and 208 controls were analyzed.
• Comorbidities assessed included thyroid disease, cardiovascular disorders, hypertension, hyperlipidemia, and lupus erythematosus.

Main Results:

• Hyperlipidemia was significantly more common in LPP patients (41.8%) compared to controls (17.3%) (OR = 4.167, p < 0.001).
• Hypertension and cardiovascular disorders were less frequent in the LPP group.
• Thyroid disorders showed higher prevalence in LPP patients, though not statistically significant (p = 0.277).

Conclusions:

• Lichen planopilaris patients exhibit a higher likelihood of specific medical comorbidities.
• Screening for conditions like hyperlipidemia is crucial for managing LPP patients effectively.