10.6084/m9.figshare.5103850.v1
Pereira Duquia R.
Pereira Duquia
R.
da Silva dos Santos I.
da Silva dos Santos I.
de Almeida Jr. H.
de Almeida Jr.
H.
Martins Souza P.R.
Martins Souza
P.R.
de Avelar Breunig J.
de Avelar Breunig J.
Zouboulis C.C.
Zouboulis
C.C.
Supplementary Material for: Epidemiology of Acne Vulgaris in 18-Year-Old Male Army Conscripts in a South Brazilian City
Karger Publishers
2017
Acne
Prevalence
Adolescents
Male gender
Ethnic skin
Risk factors
Body height
Nutrition
2017-06-13 09:41:07
Journal contribution
https://karger.figshare.com/articles/journal_contribution/Supplementary_Material_for_Epidemiology_of_Acne_Vulgaris_in_18-Year-Old_Male_Army_Conscripts_in_a_South_Brazilian_City/5103850
<p><b><i>Background:</i></b> Prevalence of acne varies worldwide.
Several factors (age, skin color, body fat, diet, and smoking) have been
investigated as risk factors. <b><i>Objective:</i></b> A total of 2,201
18-year-old males living in Pelotas, South Brazil, were evaluated in
order to examine the prevalence of acne and associated factors. <b><i>Methods:</i></b>
A cross-sectional population-based study was conducted. A dermatologist
performed the clinical examination of the face and trunk for
identification of acne lesions. Acne was evaluated as clinically
noninflammatory, inflammatory, and acne with both types of lesions. Skin
color, schooling, height, smoking, skinfolds, waist circumference, BMI,
and dietary dairy intake were the independent variables used. <b><i>Results:</i></b>
A response rate of 97.2% was obtained. Individuals without any acne
lesion were 241 (10.9%); 161 (7.3%) only had noninflammatory lesions,
404 (18.4%) only inflammatory lesions; and 1,395 (63.4%) presented both
types of lesions. In multivariate analysis, the type of lesions was
different in light and dark skin phototype adolescents, with more common
inflammatory lesions in the light phototype and noninflammatory ones in
the dark phototype patients. Height was directly associated with the
occurrence of all types of acne, whereas lower fat mass was associated
with the occurrence of noninflammatory acne. While daily consumption of
whole milk or yogurt was found to be associated with inflammatory acne
in crude analysis, the association with milk was not detected and that
with yogurt was low in multivariate analysis. <b><i>Conclusion:</i></b>
Our results suggest that future studies should explore determinants of
noninflammatory and inflammatory acne separately, especially if mixed
populations are studied.</p>