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EP6.112 Predictors of Survey Non-Response Two Years After Hip Arthroscopy: Results From an Institutional Prospective Registry
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EP6.112 Predictors of Survey Non-Response Two Years After Hip Arthroscopy: Results From an Institutional Prospective Registry

Dominic Ventimiglia, Zachary Clark, Antoan Koshar, Alexandra Lutz, Michael Rocca, R. Frank Henn and Sean Meredith
Journal of hip preservation surgery, Vol.12(Suppl 1), pp.i124-i125
03/27/2025
DOI: 10.1093/jhps/hnaf011.399
PMCID: PMC11953657
url
https://doi.org/10.1093/jhps/hnaf011.399View
Published (Version of record) Open Access

Abstract

Background: Survey-based studies are subject to non-response bias. Non-response rates 2 years after hip arthroscopy are as high as 61%. Understanding the factors contributing to non-response in this population is important for minimizing attrition bias and ensuring generalizability of results. Purpose: The purpose of this study was to determine the preoperative factors associated with survey non-response 2 years after hip arthroscopy. Methods: Patients undergoing hip arthroscopy for labral tear and femoroacetabular impingement at a single center between October 2015 and March 2020 were approached for enrollment in a prospective registry. Patients under 12 years of age or who were unable to receive emails were excluded. Patients were emailed an electronic survey at baseline and 1 and 2 years postoperatively. The primary outcome was response to the 2-year postoperative survey. Patients who failed to complete any part of the 2-year postoperative survey after a series of standardized reminders were considered non-responders. Baseline sociodemographic data and patient-reported outcomes (PROs) were compared between responders and non-responders using Pearson Chi-Squared or Wilcoxon Rank-Sum tests. Logistic regression was used to identify independent predictors of non-response. Results: 97 patients were enrolled and completed the baseline survey. There were 25 (26%) non-responders at 2 years. Non-responders demonstrated a higher proportion of patients who were male (52% vs 22%, p=.01), identified as non-white (32% vs 10%, p=.01), and did not respond to the 1-year postoperative survey (80% vs 46%, p=.005). There were no differences in baseline PROs between responders and non-responders. When controlling for age and sex, patients who did not identify as white (OR=4.1, 95% CI [1.2, 14.0]) and who did not respond to the 1-year postoperative survey (OR=4.6, 95% CI [1.5, 13.9]) were more likely to be non-responders at 2 years. Conclusion: Patients who do not identify as white and who do not respond to follow-up at 1 year postoperatively are more likely to be non-responders at 2 years after hip arthroscopy. Baseline PROs do not differ between responders and non-responders. The results may support targeted strategies to improve data collection methods within subgroups of hip arthroscopy patients to improve the generalizability of results.
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