title: Age-related variation in mobility independence among wheelchair users with spinal cord injury: A cross-sectional study.
abstract: OBJECTIVE
  To evaluate age-related variation in mobility independence among community-living wheelchair users with spinal cord injury (SCI).
  
  
  METHODS
  Community Survey (2011-2013) as part of the Swiss Spinal Cord Injury Cohort Study.
  
  
  METHODS
  Community.
  
  
  METHODS
  Individuals aged 16 years or older with traumatic or non-traumatic SCI permanently residing in Switzerland and using a wheelchair for moving around moderate distances (10-100 m).
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  Mobility-related items of the Spinal Cord Independence Measure-Self Report were matched to the three principal domains "changing basic body position," "transferring oneself" and "moving around." Binary outcomes ("independence" vs. "no independence") were created for every domain and analyzed using multivariable logistic regression (adjusted for sex, socioeconomic factors, SCI characteristics, and health conditions).
  
  
  RESULTS
  Regression analyses (N = 949; 27% women; median age 51, interquartile range 41-61) showed a decline in the odds of independence (odds ratio; 95% confidence interval) with increasing age for "changing basic body position" (age 16-30 (reference), 31-45 (0.99; 0.53-1.83), 46-60 (0.64; 0.33-1.21), 61-75 (0.45; 0.22-0.92), 76+ (0.18; 0.07-0.44); P < 0.001), "transferring oneself" (age 16-30 (reference), 31-45 (0.77; 0.37-1.61), 46-60 (0.39; 0.18-0.84), 61+ (0.05; 0.02-0.14); P < 0.001), and "moving around" (age 16-30 (reference), 31-45 (0.79; 0.42-1.48), 46-60 (0.49; 0.26-0.94), 61-75 (0.49; 0.24-1.01), 75+ (0.11; 0.04-0.30); P < 0.001).
  
  
  CONCLUSIONS
  Mobility independence was negatively associated with age in wheelchair users with SCI. Future longitudinal analyses are required to gain further insights into the causal factors for the age-related decline.
authors.affiliation: a Swiss Paraplegic Research , Nottwil , Switzerland.|b Department of Health Sciences and Health Policy , University of Lucerne , Lucerne , Switzerland.
authors.forename: Timo
authors.initials: T
authors.lastname: Hinrichs
authors.affiliation: a Swiss Paraplegic Research , Nottwil , Switzerland.
authors.forename: Veronika
authors.initials: V
authors.lastname: Lay
authors.affiliation: a Swiss Paraplegic Research , Nottwil , Switzerland.|b Department of Health Sciences and Health Policy , University of Lucerne , Lucerne , Switzerland.
authors.forename: Ursina
authors.initials: U
authors.lastname: Arnet
authors.affiliation: a Swiss Paraplegic Research , Nottwil , Switzerland.|c Swiss Paraplegic Center , Nottwil , Switzerland.
authors.forename: Inge
authors.initials: I
authors.lastname: Eriks-Hoogland
authors.affiliation: d Swiss Paraplegics Association , Nottwil , Switzerland.
authors.forename: Hans Georg
authors.initials: HG
authors.lastname: Koch
authors.affiliation: e Gerontology Research Center and Department of Health Sciences , University of Jyväskylä , Jyväskylä , Finland.
authors.forename: Taina
authors.initials: T
authors.lastname: Rantanen
authors.affiliation: a Swiss Paraplegic Research , Nottwil , Switzerland.|f Institute for Disaster Management and Reconstruction, Sichuan University , Chengdu , People's Republic of China.|g Hong Kong Polytechnic University , Hong Kong , People's Republic of China.
authors.forename: Jan D
authors.initials: JD
authors.lastname: Reinhardt
authors.affiliation: a Swiss Paraplegic Research , Nottwil , Switzerland.|b Department of Health Sciences and Health Policy , University of Lucerne , Lucerne , Switzerland.
authors.forename: Martin W G
authors.initials: MW
authors.lastname: Brinkhof
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D003430:Cross-Sectional Studies; D006233:Persons with Disabilities / Q000534:rehabilitation / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D057187:Independent Living; D008124:Locomotion; D008297:Male; D008875:Middle Aged; D055805:Moving and Lifting Patients; D013119:Spinal Cord Injuries / Q000453:epidemiology / Q000534:rehabilitation*; D014910:Wheelchairs
keywords: Disabled persons; Movement; Moving and lifting patients; Spinal cord injuries; Wheelchairs
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