Psoriasis in Children and Adolescents: Epidemiological Study of 280 Patients From Mexico

Rev Invest Clin. Jan-Feb 2017;69(1):47-50. doi: 10.24875/ric.17002117.


Background: Psoriasis in children and adolescents has not been well studied in Mexico.

Objective: To study the epidemiological characteristics of psoriasis in this age group.

Methods: This is a retrospective study in an academic, tertiary care dermatology center from January 1999 to December 2014. We included patients ≤ 18 years of age, with clinical and histopathological diagnosis of psoriasis. We recorded the following information: gender, age, disease duration, clinical variant, nail involvement, treatment, and family history. Descriptive and inferential statistics were used for analysis.

Results: Of 2,491 patients with psoriasis, 280 were ≤ 18 years of age, resulting in a prevalence of 11%. There was female predominance and the mean age was 11.5 years. Disease duration was 18 ± 34 months. Plaque psoriasis was the most common form, comprising 191 cases (68%). Nail involvement occurred in only 15 patients (5%). Topical treatment was given to 177 patients (63%). Only 14 cases (5%) had a family history of psoriasis. These variables did not differ when children were compared with adolescents, except in those with a shorter disease duration (13 ± 19 vs. 24 ± 29 months; p = 0.0004).

Conclusions: We found a higher prevalence of psoriasis than previously published studies in this age group and a lower frequency of nail involvement and family history of psoriasis.

MeSH terms

  • Administration, Cutaneous
  • Adolescent
  • Child
  • Child, Preschool
  • Dermatologic Agents / administration & dosage*
  • Female
  • Humans
  • Infant
  • Male
  • Mexico / epidemiology
  • Nail Diseases / epidemiology*
  • Nail Diseases / pathology
  • Prevalence
  • Psoriasis / drug therapy
  • Psoriasis / epidemiology*
  • Psoriasis / pathology
  • Retrospective Studies


  • Dermatologic Agents