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Demographics of control and study groups
| Control group (n = 50) | Study group (n = 50) | p value | Confidence interval (95%) | |
|---|---|---|---|---|
| THA:TKA | 31:19 | 33:17 | 0.8352 | — |
| Bilateral THA | 0 | 0 | — | — |
| Bilateral TKA | 7 | 9 | — | — |
| Average age in years (range) | 70.3 (46–98) | 65.5 (44–86) | 0.0001 | 3.85 to 4.85 |
| Male:female | 24:26 | 29:21 | 0.4230 | — |
| Average BMI (range) | 30.5 (19–56) | 31.0 (21–46) | 0.662 | −2.73 to 1.75 |
| Postoperative narcotics (MSO4 equivalents) | 43.9 | 49.0 | 0.370 | −16.4 to 6.21 |
| Anesthesia spinal:GETA | 49:1 | 50:0 | 1.0 | — |
