title: Analysis of Korean acne patients according to age groups based on two multicenter studies.
abstract: Along with increasing public concerns on acne and its complications, increasing treatment options seem to lead more acne patients to clinics globally, including Korea. The aim of the present study was to investigate the number and distribution of acne patients according to age group by analyzing number and age of outpatients from several general hospitals in Korea. Two retrospective multicenter studies including 14 general hospitals for a maximum of 10 years were conducted by medical chart review of acne patients. During the last 10 years, total acne patients have increased by 60% in number and patients under the age of 19 years have doubled. Adult acne patients (aged >18 years) accounted for the biggest portion in total acne patients at over 80%. Although upper grade of elementary school patients (aged 10-12 years) accounted for the biggest portion among the childhood acne patients, children under 10 years have also increased rapidly by 73% during the last 10 years. Childhood acne patients (aged <13 years) accounted for 11% of total acne patients. We found that acne patients were increasing consistently and the portion of those aged under 19 years is getting bigger. Additionally, childhood acne patients have increased remarkably.
authors: Department of Dermatology, National Medical Center, Seoul, Korea.
authors: Mi Youn
authors: MY
authors: Park
authors: Department of Dermatology, National Medical Center, Seoul, Korea.
authors: Kyung Ho
authors: KH
authors: Kim
authors: Department of Dermatology, College of Medicine, The Catholic University of Korea, Seoul, Korea.
authors: Hoon
authors: H
authors: Kang
authors: Department of Dermatology, College of Medicine, Korea University, Seoul, Korea.
authors: Young Chul
authors: YC
authors: Kye
authors: Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.|Acne and Rosacea Research Laboratory, Seoul National University Hospital, Seoul, Korea.
authors: Hyuck Hoon
authors: HH
authors: Kwon
authors: Department of Dermatology, College of Medicine, Hallym University, Anyang, Korea.
authors: Kwang Joong
authors: KJ
authors: Kim
authors: Department of Dermatology, Kyunghee University School of Medicine, Seoul, Korea.
authors: Nack In
authors: NI
authors: Kim
authors: Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.
authors: Myeung Nam
authors: MN
authors: Kim
authors: Department of Dermatology, Hanyang University College of Medicine, Seoul, Korea.
authors: Young Suck
authors: YS
authors: Ro
authors: Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.|Acne and Rosacea Research Laboratory, Seoul National University Hospital, Seoul, Korea.
authors: Seonguk
authors: S
authors: Min
authors: Department of Dermatology, Chung-Ang University College of Medicine, Seoul, Korea.
authors: Kui Young
authors: KY
authors: Park
authors: Department of Dermatology, Pusan National University School of Medicine, Busan, Korea.
authors: Margaret
authors: M
authors: Song
authors: Department of Dermatology, School of Medicine, Konkuk University, Seoul, Korea.
authors: Kyu Joong
authors: KJ
authors: Ahn
authors: Department of Dermatology, College of Medicine, Korea University, Seoul, Korea.
authors: Hyo Hyun
authors: HH
authors: Ahn
authors: Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
authors: Mi Woo
authors: MW
authors: Lee
authors: Department of Dermatology, Kyungpook National University School of Medicine, Daegu, Korea.
authors: Weon Ju
authors: WJ
authors: Lee
authors: Department of Dermatology, Chonnam National University Medical School, Gwangju, Korea.
authors: Jee Bum
authors: JB
authors: Lee
authors: Department of Dermatology, University of Ulsan College of Medicine, Ulsan, Korea.
authors: Yu Sung
authors: YS
authors: Choi
authors: Department of Dermatology, Seoul National University College of Medicine, Seoul, Korea.|Acne and Rosacea Research Laboratory, Seoul National University Hospital, Seoul, Korea.
authors: Dae Hun
authors: DH
authors: Suh
mesh_terms: D000152:Acne Vulgaris / Q000453:epidemiology*; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D056910:Republic of Korea / Q000453:epidemiology; D012189:Retrospective Studies; D055815:Young Adult
keywords: acne; age; age group; childhood acne; epidemiology