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Purpose <p>To identify collection methods and perioperative factors linked to 12-month patient-reported outcome measure (PROM) response rate and evaluate the effect of loss to follow-up on PROM results.</p> Methods <p>The study included 2588 elective lumbar decompressive surgery without spinal fusion during 2008–2023. The primary PROM was the Oswestry Disability Index (ODI). The independent effect of PROM collection methods and perioperative factors on 12-month ODI response was examined. The effect of loss to follow-up on 12-month PROM responder results was evaluated with modelled 12-month PROM and with observed 3-month PROM in a group with last ODI response at 3-months. The response rate to 6-month electronic-only collection was evaluated in patients who advocated to also receive electronic questionnaires.</p> Results <p>Proportionally, 70.8% (1832/2588) were 12-month ODI responders, 19.4% (501/2588) provided a last ODI response at 3-months, and 9.9% (255/2588) were ODI non-responders. The PROM collection method linked to the highest 12-month ODI response rate was two attempts each by electronic and postal questionnaire. Important perioperative factors for lower 12-month ODI response were younger age, smoker, ASA grade, physical comorbidities, male, and anxiety/depression. Twelve-month responder PROM results were unchanged (≤ 1% of metric) by the addition of missing values from modelled PROM or last ODI response at 3-months. The 6-month ODI response rate to electronic-only questionnaire was 48% (467/969).</p> Conclusion <p>Combined electronic and postal PROM collection achieved a 78% response rate. Populations at risk of underrepresentation in spinal register 12-month results were identified. Twelve-month PROM results are not significantly affected by 29% missing data.</p>

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Loss to follow-up after lumbar decompressive surgery: effect of collection method and perioperative factors on patient-reported outcome measures

  • 期刊论文

  • 发表日期：

    2025年8月30日

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  • Jonathan H. Geere,
  • Paul R. Hunter,
  • Tom Marjoram,
  • Andrew J. Cook,
  • Amarjit S. Rai

摘要

Purpose

To identify collection methods and perioperative factors linked to 12-month patient-reported outcome measure (PROM) response rate and evaluate the effect of loss to follow-up on PROM results.

Methods

The study included 2588 elective lumbar decompressive surgery without spinal fusion during 2008–2023. The primary PROM was the Oswestry Disability Index (ODI). The independent effect of PROM collection methods and perioperative factors on 12-month ODI response was examined. The effect of loss to follow-up on 12-month PROM responder results was evaluated with modelled 12-month PROM and with observed 3-month PROM in a group with last ODI response at 3-months. The response rate to 6-month electronic-only collection was evaluated in patients who advocated to also receive electronic questionnaires.

Results

Proportionally, 70.8% (1832/2588) were 12-month ODI responders, 19.4% (501/2588) provided a last ODI response at 3-months, and 9.9% (255/2588) were ODI non-responders. The PROM collection method linked to the highest 12-month ODI response rate was two attempts each by electronic and postal questionnaire. Important perioperative factors for lower 12-month ODI response were younger age, smoker, ASA grade, physical comorbidities, male, and anxiety/depression. Twelve-month responder PROM results were unchanged (≤ 1% of metric) by the addition of missing values from modelled PROM or last ODI response at 3-months. The 6-month ODI response rate to electronic-only questionnaire was 48% (467/969).

Conclusion

Combined electronic and postal PROM collection achieved a 78% response rate. Populations at risk of underrepresentation in spinal register 12-month results were identified. Twelve-month PROM results are not significantly affected by 29% missing data.