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Test-Retest Reliability of the Reintegration to Normal Living Index (RNL-I) to Assess Perceived Participation in Adults With Late Effects of Polio

Andersson, Nilla LU ; Lexell, Jan LU and Brogårdh, Christina LU (2019) In PM and R
Abstract

BACKGROUND: Many individuals with late effects of polio have difficulties participating in daily activities. The Reintegration to Normal Living Index (RNL-I) is a self-report questionnaire that evaluates perceived participation, but knowledge of the test-retest reliability and measurement errors in this population is lacking.

OBJECTIVE: To evaluate the test-retest reliability of the RNL-I in adults with late effects of polio.

DESIGN: A postal survey with a test-retest design.

SETTING: University hospital outpatient clinic.

PARTICIPANTS: Fifty-one adults (20 women and 31 men; mean age 72 years) with late effects of polio.

MAIN OUTCOME MEASUREMENTS: The Reintegration to Normal Living Index... (More)

BACKGROUND: Many individuals with late effects of polio have difficulties participating in daily activities. The Reintegration to Normal Living Index (RNL-I) is a self-report questionnaire that evaluates perceived participation, but knowledge of the test-retest reliability and measurement errors in this population is lacking.

OBJECTIVE: To evaluate the test-retest reliability of the RNL-I in adults with late effects of polio.

DESIGN: A postal survey with a test-retest design.

SETTING: University hospital outpatient clinic.

PARTICIPANTS: Fifty-one adults (20 women and 31 men; mean age 72 years) with late effects of polio.

MAIN OUTCOME MEASUREMENTS: The Reintegration to Normal Living Index (RNL-I).

METHODS: The participants responded to the RNL-I twice, 3 weeks apart. Data were analyzed with the following statistical methods: percentage agreement (PA), quadratic kappa coefficients, the intraclass correlation coefficient (ICC), mean difference, standard error of measurement (SEM/SEM%), and the smallest real difference (SRD/SRD%).

RESULTS: The PA (ie, the same scoring at both test occasions) was >70% for 10 of 11 items. The kappa coefficients showed good test-retest agreement (>0.61) for 7 items. The ICC was 0.88 and the mean difference was -0.74. The SEM (SEM%) was 7.4 (9.7%) and the SRD (SRD%) was 20.5 (27.0%).

CONCLUSION: The RNL-I can be considered reliable for adults with mild to moderate late effects of polio. It can thereby be used to assess changes in perceived participation over time or after rehabilitation interventions, both for a group of individuals and a single individual.

LEVEL OF EVIDENCE: III.

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author
organization
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Contribution to journal
publication status
epub
subject
in
PM and R
publisher
Elsevier
external identifiers
  • scopus:85067032219
ISSN
1934-1563
DOI
10.1002/pmrj.12162
language
English
LU publication?
yes
id
8fecd92b-0fae-4e1a-964b-4764959310f3
date added to LUP
2019-06-25 22:29:10
date last changed
2019-07-16 04:12:34
@article{8fecd92b-0fae-4e1a-964b-4764959310f3,
  abstract     = {<p>BACKGROUND: Many individuals with late effects of polio have difficulties participating in daily activities. The Reintegration to Normal Living Index (RNL-I) is a self-report questionnaire that evaluates perceived participation, but knowledge of the test-retest reliability and measurement errors in this population is lacking.</p><p>OBJECTIVE: To evaluate the test-retest reliability of the RNL-I in adults with late effects of polio.</p><p>DESIGN: A postal survey with a test-retest design.</p><p>SETTING: University hospital outpatient clinic.</p><p>PARTICIPANTS: Fifty-one adults (20 women and 31 men; mean age 72 years) with late effects of polio.</p><p>MAIN OUTCOME MEASUREMENTS: The Reintegration to Normal Living Index (RNL-I).</p><p>METHODS: The participants responded to the RNL-I twice, 3 weeks apart. Data were analyzed with the following statistical methods: percentage agreement (PA), quadratic kappa coefficients, the intraclass correlation coefficient (ICC), mean difference, standard error of measurement (SEM/SEM%), and the smallest real difference (SRD/SRD%).</p><p>RESULTS: The PA (ie, the same scoring at both test occasions) was &gt;70% for 10 of 11 items. The kappa coefficients showed good test-retest agreement (&gt;0.61) for 7 items. The ICC was 0.88 and the mean difference was -0.74. The SEM (SEM%) was 7.4 (9.7%) and the SRD (SRD%) was 20.5 (27.0%).</p><p>CONCLUSION: The RNL-I can be considered reliable for adults with mild to moderate late effects of polio. It can thereby be used to assess changes in perceived participation over time or after rehabilitation interventions, both for a group of individuals and a single individual.</p><p>LEVEL OF EVIDENCE: III.</p>},
  author       = {Andersson, Nilla and Lexell, Jan and Brogårdh, Christina},
  issn         = {1934-1563},
  language     = {eng},
  month        = {03},
  publisher    = {Elsevier},
  series       = {PM and R},
  title        = {Test-Retest Reliability of the Reintegration to Normal Living Index (RNL-I) to Assess Perceived Participation in Adults With Late Effects of Polio},
  url          = {http://dx.doi.org/10.1002/pmrj.12162},
  year         = {2019},
}