Padrões clínicos de acne em mulheres de diferentes faixas etárias

BACKGROUND Acne is a common disease in adolescents, but there are no epidemiological data for acne in Brazil. OBJECTIVES To estimate the prevalence and degree of acne in adolescents from Sao Paulo and study socio-demographic factors, family history and lifestyle, associated with the disease. METHODS Cross-sectional study with 452 adolescents aged between 10 and 17 (mean=13.3 years), students from elementary and high school, examined by 3 independent evaluators. RESULTS 62.4% were female, 85.8% white and 6.4% were aged 14. The prevalence was 96.0% and increased with age - all students over 14 had acne. The most prevalent form of acne was comedonal (61.1%), followed by mild (30.6%) and moderate (7.6%) papular-pustular, which affected mostly the face (97.5%). About half of the adolescents reported family history for acne in mother or father, and 20.6% reported previous treatment for acne. There was a higher chance of presenting non-comedonal acne with increased age (p<0.001).DISCUSSIONThe prevalence of acne in adolescents varies widely due to the clinical features and diagnostic methods used. Adolescents whose brothers/sisters had acne (OR=1.7-p=0.027) and those over 13 (OR=8.3-p<0.001), were more likely to have non-comedonal acne.CONCLUSION This study showed high prevalence of acne in adolescents from Sao Paulo, predominantly the comedonal form on the face, with a higher chance of presenting non-comedonal acne with increased age.

Section: Discussionsupporting

confidence: 52%

Acne vulgaris: prevalence and clinical forms in adolescents from São Paulo, Brazil

Bagatin

Timpano

Guadanhim

et al. 2014

“…In addition, according to recent epidemiological studies, the prevalence of acne complaints in young adults was above 40%. 1-3,16 …”

Section: Discussionmentioning

confidence: 99%

Keratosis pilaris and prevalence of acne vulgaris: a cross-sectional study

Schmitt

Lima

Souza

et al. 2014

Self Cite

BACKGROUNDAcne vulgaris has an important genetic predisposition, as well as keratosis pilaris. Clinical observations suggest that patients with keratosis pilaris have less frequent or less severe acne breakouts; however, we found no studies on this regardOBJECTIVETo determine if the presence of keratosis pilaris is associated with lower prevalence and severity of acne.METHODSA cross-sectional study was conducted with dermatology outpatients aged between 14 and 35 years. We evaluated history and clinical grade of acne, demographic variables, history of atopy, smoking, and use of hormonal contraceptives. Two groups were defined by the presence or absence of moderate to severe keratosis pilaris on the arms and were compared by bivariate analysis and by conditional multiple logistic regression.RESULTSWe included 158 patients (66% women), with a median age of 23±11 years. Twenty-six percent of them had keratosis pilaris, which was associated with a history of atopy (odds ratio [OR]=2.80 [1.36 to 5.75]; p<0.01). Acne was present in 66% of subjects, and was related to family history of acne (OR=5.75 [2.47 to 13.37]; p<0.01). In bivariate and multivariate analysis, the group with keratosis pilaris had a less frequent history of acne (OR=0.32 [0.14 to 0.70]; p<0.01).CONCLUSIONThe presence of moderate to severe keratosis pilaris on the arms was associated with lower prevalence of acne vulgaris and lower severity of facial lesions in adolescents and young adults.

“…1 A Brazilian survey revealed that 59.4% of men and 54% of women had acne, which means that this is the most prevailing dermatosis at all age ranges from 18 to 55, with a prevalence varying from 70.3% to 38.1%. 1-4 It is estimated that, in the United States, 45 million people have acne. Although acne vulgaris does not usually compromise general health, consistent studies have demonstrated that it may cause a negative impact on patient's quality of life, with psychological, social wellbeing, and functional abnormalities such as depression, anxiety, anger, low self-esteem, discomfort with self-appearance, embarrassment, self-consciousness, lowered self-concept, social withdrawal, including suicidal ideation, as well as negative influence on school and work performance.…”

Section: Introductionmentioning

confidence: 99%

Acne-specific quality of life questionnaire (Acne-QoL): translation, cultural adaptation and validation into Brazilian-Portuguese language

Kamamoto

Hassun

Bagatin

et al. 2014

BACKGROUNDmany studies about the psychosocial impact of acne have been reported in international medical literature describing quality of life as a relevant clinical outcome. It is well known that the patient's perception about the disease may be different from the physician's evaluation. Therefore, it is important to use validated instruments that turn the patient's subjective opinion into objective information.OBJECTIVESto translate into Brazilian-Portuguese language and to culturally adapt a quality of life questionnaire, the Acne-Specific Quality of Life Questionnaire (Acne-QoL), as well as to evaluate its reliability and validity.METHODSmeasurement properties were assessed: 1) validity: comparison between severity and Acne-QoL domain scores, correlations between acne duration and Acne-QoL domain scores, and correlation between Acne-QoL domain scores and SF-36 components; 2) internal consistency: Cronbach's α coefficient; 3) test-retest reproducibility: intraclass correlation coefficient and Wilcoxon test.RESULTSEighty subjects with a mean age of 20.5 ± 4.8 years presenting mild (33.8%), moderate (36.2%) and severe (30%) facial acne were enrolled. Acne-QoL domain scores were similar among the different acne severity groups except for role-social domain. Subjects with shorter acne duration presented significant higher scores. Acne-QoL domains showed significant correlations, both between themselves and with SF-36 role-social and mental health components. Internal consistency (0.925-0.952) and test-retest reproducibility were considered acceptable (0.768-0.836).CONCLUSIONSthe Brazilian-Portuguese version of the Acne-QoL is a reliable and valid satisfactory outcome measure to be used in facial acne studies.