title: Self-perceived health status and health-related quality of life of extremely low-birth-weight infants at adolescence.
abstract: OBJECTIVE
  To estimate and to compare the self-assessed health status and health-related quality of life of extremely low-birth-weight (ELBW) and control infants during adolescence.
  
  
  METHODS
  Prospective, observational study of an inception cohort with a concurrent control group.
  
  
  METHODS
  Geographically defined region in central-west Ontario.
  
  
  METHODS
  We interviewed 141 (83 percent) of 169 ELBW survivors born between 1977 and 1982 and 124 (86 percent) of 145 controls aged between 12 and 16 years. In addition, proxy responses obtained from parents were used for 9 severely impaired teenagers.
  
  
  METHODS
  Assessments of health status (6 attributes), measured with the Health Utilities Index Mark 2 classification system, and health-related quality of life (utilities), quantified with 2 preference measurement techniques, were used to quantify each participants self-reported, subjectively defined health state and 4 preselected hypothetical health states.
  
  
  RESULTS
  Adolescents who were ELBW infants reported a higher number of attributes affected, as well as more complex and severe limitations in cognition, sensation, self-care, and pain, compared with controls. Statistically significant differences for the teenagers' health-related quality of life were noted between ELBW and control teenagers in the mean utility scores (0.87 +/- 0.26 vs 0.93 +/- 0.11; P=.02 on a conventional scale where O=dead and 1.00=perfect health). However, a similar percentage of ELBW and control teenagers (71 percent vs 73 percent) gave utility ratings of more than 0.95 for their health status.
  
  
  CONCLUSIONS
  Direct measures of self-reported health status and utility scores indicated that, as a cohort, adolescents who were ELBW infants suffer from a greater burden of morbidity and rate their health-related quality of life as significantly lower than control teenagers. Nevertheless, the vast majority of ELBW respondents view their health-related quality of life as quite satisfactory and are difficult to distinguish from controls.
authors.affiliation: Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada.
authors.forename: S
authors.initials: S
authors.lastname: Saigal
authors.forename: D
authors.initials: D
authors.lastname: Feeny
authors.forename: P
authors.initials: P
authors.lastname: Rosenbaum
authors.forename: W
authors.initials: W
authors.lastname: Furlong
authors.forename: E
authors.initials: E
authors.lastname: Burrows
authors.forename: B
authors.initials: B
authors.lastname: Stoskopf
mesh_terms: D000293:Adolescent; D005260:Female; D006304:Health Status; D006801:Humans; D007231:Infant, Newborn; D019102:Infant, Very Low Birth Weight; D008137:Longitudinal Studies; D008297:Male; D009017:Morbidity; D009864:Ontario / Q000453:epidemiology; D011446:Prospective Studies; D000297:Psychology, Adolescent; D011788:Quality of Life; D012649:Self Concept; D017741:Survivors / Q000523:psychology