TY - JOUR T1 - Chronic fatigue syndrome in adolescents: A follow-up study AU - Gill AC, Dosen A, Ziegler JB Y1 - 2004/03/01 N1 - 10.1001/archpedi.158.3.225 JO - Archives of Pediatrics & Adolescent Medicine SP - 225 EP - 229 VL - 158 IS - 3 N2 - Objectives  To compare the frequency of persistent symptoms up to 8 years after illness onset in adolescents diagnosed as having chronic fatigue syndrome, idiopathic chronic fatigue, and unexplained fatigue for less than 6 months, and to determine if hospital admission is associated with outcome.Design  A cohort study using questionnaire follow-up.Setting  A tertiary referral hospital.Patients  Consecutive adolescents referred for assessment of persistent fatigue were identified and retrospectively divided into 3 groups according to the diagnostic criteria for chronic fatigue syndrome and idiopathic chronic fatigue.Intervention  A questionnaire was designed and administered by telephone at a mean of 4.57 years after the initial examination.Main Outcome Measure  The persistence of self-reported symptoms was compared with respect to patient group and admission.Results  Outcome data were obtained for 34 (69%) of the 49 eligible subjects. Twenty-five percent of the chronic fatigue syndrome group showed near to complete improvement, 31% showed partial improvement, and 44% showed no improvement. The idiopathic chronic fatigue group had near to complete recovery in 50%, partial in 10%, and no improvement in 40%. Those with unexplained fatigue for less than 6 months had all recovered. There was no difference between the outcome of the subjects admitted to the hospital and those managed as outpatients.Conclusions  Adolescents with less than 6 months of fatigue have a good outcome. Unexplained fatigue lasting more than 6 months has a similar outcome regardless of the presence of minor criteria for chronic fatigue syndrome. SN - 1072-4710 M3 - doi: 10.1001/archpedi.158.3.225 UR - http://dx.doi.org/10.1001/archpedi.158.3.225 ER -