Article Figures & Data
Figures
- Figure 1.
Mean scores for the Harris Hip Score (HHS) from baseline (preoperatively) to 36 months postoperatively stratified by body mass index cohort. The HHS, which is used to measure hip functionality and pain, has a maximum score of 100, with higher scores indicating better outcomes.
- Figure 2.
Mean scores for the physical component score (PCS-12) from baseline (preoperatively) to 36 months postoperatively stratified by body mass index cohort. The PCS-12, which is the physical health subcomponent of the 12-Item Short Form Survey, has a maximum score of 100, with higher scores indicating better outcomes.
- Figure 3.
Mean scores for the mental component score (MCS-12) from baseline (preoperatively) to 36 months postoperatively stratified by body mass index cohort. The MCS-12, which is the mental health subcomponent of the 12-Item Short Form Survey, has a maximum score of 100, with higher scores indicating better outcomes.
Tables
Variable Value Age, years, mean 35.6 Sex Female 272 (59.3) Male 187 (40.7) Body mass index, kg/m2, mean 25.7 Body mass index cohorts Underweight 16 (3.5) Normal weight 213 (46.4) Overweight 147 (32.0) Obese 83 (18.1) Notes: Data are presented as n (%) unless otherwise indicated. Body mass index cohorts were defined as follows: underweight, <18.5 kg/m2; normal weight, 18.5 to 24.9 kg/m2; overweight, 25.0 to 29.9 kg/m2; obese, ≥30.0 kg/m2.
- Table 2.
Average Preoperative and Postoperative Scores Stratified by Body Mass Index Cohort
Postoperative Follow-Up Time Point Outcome Measure/Body Mass Index Cohort Preoperative Baseline 6 weeks 3 months 6 months 1 year 2 years 3 years Harris Hip Score Underweight 58.0 78.1 (0.020) 80.2 (0.001) 85.9 (0.076) 81.0 (0.011) 73.2 (0.008) 68.2 (0.046) Normal weight 56.3 76.7 (<0.001) 74.0 (<0.001) 92.5 (<0.001) 88.5 (<0.001) 86.3 (<0.001) 73.9 (<0.001) Overweight 50.6 80.5 (<0.001) 77.9 (<0.001) 89.8 (<0.001) 87.4 (<0.001) 82.0 (<0.001) 75.9 (<0.001) Obese 54.7 75.9 (<0.001) 79.5 (<0.001) 90.2 (<0.001) 91.7 (<0.001) 87.8 (<0.001) 82.2 (<0.001) Intercohort P valuea 0.245 0.914 0.989 0.576 0.884 0.444 0.448 Physical Component Score of 12-Item Short Form Survey Underweight 37.1 38.0 (0.494) 44.2 (0.008) 43.7 (0.016) 46.9 (0.024) 48.4 (0.022) 49.0 (0.061) Normal weight 35.6 38.2 (0.002) 44.9 (<0.001) 49.4 (0.001) 49.6 (<0.001) 50.1 (<0.001) 51.4 (<0.001) Overweight 34.6 38.4 (0.001) 43.4 (<0.001) 46.7 (<0.001) 48.3 (<0.001) 49.1 (<0.001) 51.8 (<0.001) Obese 34.2 47.5 (0.079) 42.9 (<0.001) 46.7 (<0.001) 49.2 (<0.001) 51.1 (<0.001) 53.6 (<0.001) Intercohort P valuea 0.542 0.186 0.639 0.796 0.758 0.765 0.661 Mental Component Score of 12-Item Short Form Survey Underweight 48.0 52.4 (0.049) 53.4 (0.059) 47.7 (0.353) 58.0 (0.026) 57.2 (0.022) 55.5 (0.056) Normal weight 49.5 53.4 (0.001) 55.1 (<0.001) 54.6 (<0.001) 54.9 (<0.001) 54.5 (<0.001) 55.4 (<0.001) Overweight 51.2 53.3 (0.004) 55.0 (<0.001) 54.3 (0.010) 54.9 (0.049) 55.4 (0.071) 56.3 (0.119) Obese 50.9 53.7 (0.017) 54.9 (0.030) 54.9 (0.027) 55.9 (0.010) 56.4 (0.079) 59.0 (0.095) Intercohort P valuea 0.519 0.984 0.927 0.269 0.669 0.671 0.318 ↵aIntercohort P values calculated by analysis of variance to compare the mean values of the 4 body mass index cohorts.
Notes: Data are presented as mean score (P value compared to preoperative score) unless otherwise indicated. The Harris Hip Score, the physical component score of the 12-Item Short Form Survey, and the mental component score of the 12-Item Short Form Survey each has a maximum score of 100, with higher values indicating better outcomes. Body mass index cohorts were defined as follows: underweight, <18.5 kg/m2; normal weight, 18.5 to 24.9 kg/m2; overweight, 25.0 to 29.9 kg/m2; obese, ≥30.0 kg/m2.
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