Reliability of the revised Scoliosis Research Society-22 and Oswestry Disability Index (ODI) questionnaires in adult spinal deformity when administered by telephone

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• 作者：Steven L. Bokshan ; BS^a ; Jakub Godzik ; MD^b ; Jonathan Dalton ; BA^a ; Jennifer Jaffe ; BS ; MPH^a ; Lawrence G. Lenke ; MD^c ; Michael P. Kelly ; MD ; MS^a ; ^{kellymi@wudosis.wustl.edu" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Adult spinal deformity ; Oswestry Disability Index ; Outcomes ; SRS-22r ; Telephone administration
• 刊名：The Spine Journal
• 出版年：2016
• 出版时间：September 2016
• 年：2016
• 卷：16
• 期：9
• 页码：1042-1046
• 全文大小：193 K

文摘

The non-response rates are as high as 20% to 50% after 5 years of follow-up in adult spinal deformity (ASD) surgery. Minimizing loss to follow-up is essential to protect the quality of data in long-term studies. Phone and internet administration of outcomes instruments has grown in popularity and has been found to not only provide a convenient way of collecting data, but also show improved response rates.

Purpose

The study aimed to examine the reliability of the revised Scoliosis Research Society-22 (SRS-22r) and the Oswestry Disability Index (ODI) questionnaires in ASD patients when administered by telephone.

Study Design/Setting

This is a single-center, randomized crossover phone validation of ASD patients.

Patient Sample

The study included ASD patients presenting to a tertiary spine care center.

Outcome Measures

The outcome measures were ODI and SRS-22r.

Methods

Forty-nine patients (mean age: 55.7 years) with ASD were randomized in a 1:1 ratio to either phone completion of the SRS-22r and ODI followed by in-office completion, or to in-office completion followed by phone completion. An interval of 2 to 4 weeks was placed between administrations of each version. A paired t test was used to assess the difference between the written and phone versions, and intraclass correlation coefficients were used to assess homogeneity. Finally, goodness-of-fit testing was used to assess version preference.

Results

There was no significant difference between the phone and in-office versions of the SRS-22r (p=.174) or the ODI (p=.320). The intraclass correlation coefficients of the SRS-22r and ODI were 0.91 and 0.86, respectively. Completion over the phone was the most popular option (57% preferred phone, 29% preferred in-office, and 14% had no preference).

Conclusions

Phone administration of the SRS-22r and ODI to ASD patients provides a convenient and reliable tool for reducing loss of follow-up data.