title: Proficiency of balance in children and youth who have had acute lymphoblastic leukemia.
abstract: OBJECTIVE
  As the survival rate for acute lymphoblastic leukemia (ALL) in childhood increases, long-term sequelae are a growing concern. This cross-sectional, descriptive study compared the balance skills of children and youth who have had ALL with those of comparable subjects and explored associations with demographics, therapy, physical activity, and health-related quality of life (HRQL).
  
  
  METHODS
  Ninety-nine subjects treated previously for ALL and 89 comparison subjects were examined.
  
  
  METHODS
  Measures included the Bruininks-Oseretsky Test of Motor Proficiency (BOTMP) balance subtest, the Children's Self-perceptions of Adequacy in and Predilection for Physical Activity Scale (CSAPPA), and the Health Utilities Index (HUI), a measure of HRQL.
  
  
  RESULTS
  The children and youth who had ALL had poorer balance than the comparison subjects (BOTMP = 10.55 and 16.30, respectively) and lower CSAPPA scores (57.72 and 63.72, respectively) and HUI scores (0.86 and 0.97, respectively). Regression analyses identified exposure to cranial irradiation, being overweight, lower CSAPPA scores for adequacy, and lower HUI single-attribute scores for cognition as predictors of lower balance scores in subjects who had ALL.
  
  
  CONCLUSIONS
  Balance abilities in subjects treated for ALL were compromised, and several factors were associated with this deficit.
authors.affiliation: McMaster Children's Hospital, Box 2000, Hamilton, Ontario, Canada, L8N 3Z5. wrightm@hhsc.ca
authors.forename: Marilyn J
authors.initials: MJ
authors.lastname: Wright
authors.forename: Vicky
authors.initials: V
authors.lastname: Galea
authors.forename: Ronald D
authors.initials: RD
authors.lastname: Barr
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D003430:Cross-Sectional Studies; D002658:Developmental Disabilities / Q000175:diagnosis; D005260:Female; D006801:Humans; D008297:Male; D019957:Motor Skills Disorders / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology* / Q000534:rehabilitation; D009483:Neuropsychological Tests / Q000592:standards; D004856:Postural Balance; D054198:Precursor Cell Lymphoblastic Leukemia-Lymphoma / Q000150:complications* / Q000503:physiopathology / Q000534:rehabilitation; D011237:Predictive Value of Tests; D011596:Psychomotor Disorders / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology* / Q000534:rehabilitation; D012044:Regression Analysis; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012720:Severity of Illness Index; D013997:Time Factors