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  • Title: Role of body weight in therapy participation and rehabilitation outcomes among individuals with traumatic spinal cord injury.
    Author: Tian W, Hsieh CH, DeJong G, Backus D, Groah S, Ballard PH.
    Journal: Arch Phys Med Rehabil; 2013 Apr; 94(4 Suppl):S125-36. PubMed ID: 23527768.
    Abstract:
    OBJECTIVE: To examine the association between body weight, therapy participation, and functional outcomes among people with spinal cord injury (SCI). DESIGN: Multisite prospective observational cohort study. SETTING: Six acute rehabilitation facilities. PARTICIPANTS: Patients (N=1017) aged ≥ 12 years admitted for their initial rehabilitation after SCI. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURE: Motor FIM at inpatient rehabilitation discharge and 1 year postinjury. RESULTS: Underweight and overweight/obese patients consisted of 2 different clusters of SCI patients. Underweight patients were more likely to be younger, black, less educated, single, have Medicaid as a primary payer, and more likely to have had a cervical level injury because of violence and vehicular-related events than their overweight and obese counterparts. We found few significant differences in hours of therapy during inpatient rehabilitation across weight groups. Among patients with C5-8 ASIA Impairment Scale (AIS) grades A, B, and C injuries, underweight patients received fewer hours of physical therapy per week than patients with a healthy weight (P=.028). Obese patients with paraplegia AIS grades A, B, and C received more hours of occupational therapy during their rehabilitation stay (P<.001) than other weight groups. A higher percentage of underweight patients had pressure ulcers during inpatient rehabilitation in C5-8 AIS grades A, B, and C and paraplegia AIS grades A, B, and C groups. Only in the paraplegia AIS grades A, B, and C group did we find a significant association between weight groups and discharge motor FIM score. Regression models showed that among C1-4 AIS grades A, B, and C patients, the overweight group had better 1-year follow-up motor FIM scores than other weight groups. CONCLUSIONS: Patients who had an unhealthy body weight, that is, being underweight or obese, often have therapy participation and profiles different from those deemed healthy, or just overweight. For patients with paraplegia AIS grades A, B, and C, being overweight or obese was associated with diminished motor FIM outcomes at discharge from rehabilitation. The relation between body weight status, therapy participation, and outcomes are not consistent among study group participants.
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