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Developmental medicine and child neurology v.58 no.11, 2016년, pp.1132 - 1138   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Differential item functioning in the Patient Reported Outcomes Measurement Information System Pediatric Short Forms in a sample of children and adolescents with cerebral palsy

Coster, Wendy J (Department of Occupational Therapy, Boston University College of Health and Rehabilitation Sciences: Sargent College, Boston, MA, USA<country scheme="USMARC"> ); Ni, Pengsheng (xxu</country> ); Slavin, Mary D (Health and Disability Research Institute, Boston University School of Public Health, Boston, MA, USA<country scheme="USMARC"> ); Kisala, Pamela A (xxu</country> ); Nandakumar, Ratna (Health and Disability Research Institute, Boston University School of Public Health, Boston, MA, USA<country scheme="USMARC"> ); Mulcahey, Mary Jane (xxu</country> ); Tulsky, David S (Department of Physical Therapy, College of Health Sciences, University of Delaware, Newark, DE, USA<country scheme="USMARC"> ); Jette, Alan M (xxu</country> );
  • 초록  

    Aim The present study examined the Patient Reported Outcomes Measurement Information System (PROMIS) Mobility, Fatigue, and Pain Interference Short Forms (SFs) in children and adolescents with cerebral palsy (CP) for the presence of differential item functioning (DIF) relative to the original calibration sample. Method Using the Graded Response Model we compared item parameter estimates generated from a sample of 303 children and adolescents with CP (175 males, 128 females; mean age 15y 5mo) to parameter estimates from the PROMIS calibration sample, which served as the reference group. DIF was assessed in a two‐step process using the item response theory–likelihood ratio–differential item functioning detection procedure. Results Significant DIF was identified for four of eight items in the PROMIS Mobility SF, for two of eight items in the Pain Interference Scale, and for one item out of 10 on the Fatigue Scale. Impact of DIF on total score estimation was notable for Mobility and Pain Interference, but not for Fatigue. Interpretation Results suggest differences in the responses of adolescents with CP to some items on the PROMIS Mobility and Pain Interference SFs. Cognitive interviews about the PROMIS items with adolescents with varying degrees of mobility limitations would provide better understanding of how they are interpreting and selecting responses to the PROMIS items and thus help guide selection of the most appropriate way to address this issue.


    What this paper adds Children and adolescents with cerebral palsy (CP) may not interpret some items on the Patient Reported Outcomes Measurement Information System (PROMIS) Mobility and Pain Interference Short Forms in the same way as children and adolescents in the original calibration sample.These differences could lead to overestimation of mobility function or pain interference for children and adolescents with CP. This article is commented on by Carle and Mara on pages 1100–1101 of this issue.


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