Characteristics and outcomes of patients who did not respond to a national spine surgery registry

Loss to follow-up may bias outcome assessments in medical registries. This cohort study aimed to analyze and compare patients who failed to respond with those that responded to the Norwegian Registry for Spine Surgery (NORspine). We analyzed a cohort of 474 consecutive patients operated for lumbar s...

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Bibliographic Details
Published in:BMC musculoskeletal disorders 2023-03, Vol.24 (1), p.164-164, Article 164
Main Authors: Kaur, Simran, Alhaug, Ole Kristian, Dolatowski, Filip C, Solberg, Tore K, Lønne, Greger
Format: Article
Language:English
Subjects:
Analysis
Attrition bias
Back surgery
Bone surgery
Clinical outcomes
Cohort analysis
Cohort Studies
Cross-Sectional Studies
Data collection
Evaluation
Hospitals
Humans
Loss to follow-up
Lumbar spinal stenosis
Musculoskeletal diseases
Native languages
Non-response
Norway
Outcome Assessment, Health Care
Pain
Patients
Questionnaires
Registries
Registries (in medicine)
Registry
Selection bias
Spinal stenosis
Spine
Spine (lumbar)
Spine surgery
Surgeons
Surgery
Treatment outcome
Variables
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Summary:Loss to follow-up may bias outcome assessments in medical registries. This cohort study aimed to analyze and compare patients who failed to respond with those that responded to the Norwegian Registry for Spine Surgery (NORspine). We analyzed a cohort of 474 consecutive patients operated for lumbar spinal stenosis at four public hospitals in Norway during a two-year period. These patients reported sociodemographic data, preoperative symptoms, and Oswestry Disability Index (ODI), numerical rating scales (NRS) for back and leg pain to NORspine at baseline and 12 months postoperatively. We contacted all patients who did not respond to NORspine after 12 months. Those who responded were termed responsive non-respondents and compared to 12 months respondents. One hundred forty (30%) did not respond to NORspine 12 months after surgery and 123 were available for additional follow-up. Sixty-four of the 123 non-respondents (52%) responded to a cross-sectional survey done at a median of 50 (36-64) months after surgery. At baseline, non-respondents were younger 63 (SD 11.7) vs. 68 (SD 9.9) years (mean difference (95% CI) 4.7 years (2.6 to 6.7); p =  
ISSN:1471-2474
1471-2474
DOI:10.1186/s12891-023-06267-3