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Tables
Variables Weighted Mean (SE) or Weighted N (%) P Early THR = 0 (n = 215.5) Early THR = 1 (n = 47.2) Age, y 68.9 (0.6) 67.9 (1.5) Gender 0.541 Woman (0) 132.7 (61.6) 28.7 (60.7) 0.9332 Man (1) 82.8 (38.4) 18.6 (39.3) Preoperative TG, mg/dL 148.5 (3.3) 170.9 (6.9) 0.0035 Preoperative Hgb, mg/dL 13.0 (0.1) 12.5 (0.3) 0.0815 Preoperative Hct, % 38.3 (0.6) 37.4 (0.8) 0.3882 BMI 25.4 (0.3) 24.5 (0.6) 0.1774 No. of surgical levels treated 1 133.4 (61.9) 28.6 (60.6) 0.9983 2 70.3 (32.6) 16.0 (33.9) 3 8.7 (4.1) 2.0 (4.2) 4 3.1 (1.4) 0.6 (1.3) Preoperative smoking No (0) 199.2 (92.4) 45.7 (96.8) 0.3765 Yes (1) 16.3 (7.6) 1.5 (3.2) Preoperative alcohol use No (0) 185.0 (85.8) 32.9 (69.6) 0.0435 Yes (1) 30.5 (14.2) 14.4 (30.4) Preoperative steroid use No (0) 205.4 (95.3) 35.3 (74.9) 0.0007 Yes (1) 10.2 (4.7) 11.9 (25.2) Osteoporosis No (0) 149.4 (69.3) 12.4 (26.2) <0.0001 Yes (1) 66.1 (30.7) 34.9 (73.8) Abbreviations: THR, total hip replacement; TG, triglyceride; Hgb, hemoglobin; Hct, hematocrit; BMI, body mass index.
Variables Weighted Mean (SE) or Weighted N (%) P Early THR = 0 (n = 215.5) Early THR = 1
(n = 47.2)Preoperative PI 55.2 (0.9) 51.1 (2.0) 0.0644 SS 32.3 (0.6) 29.6 (2.3) 0.2472 PT 22.9 (0.7) 21.6 (2.4) 0.5901 LL 35.2 (1.0) 38.9 (3.5) 0.3012 TLK 20.8 (0.10) 7.4 (1.1) <0.0001 SVA 55.1 (2.10) 68.1 (10.2) 0.217 TK 21.8 (0.8) 17.5 (1.7) 0.0213 PI−LL 20.0 (1.1) 12.2 (4.1) 0.0661 Postoperative PI 55.0 (0.8) 55.1 (2.4) 0.964 SS 32.2 (0.7) 34.2 (2.3) 0.4072 PT 22.8 (0.7) 21.0 (2.1) 0.4164 LL 36.9 (1.0) 37.4 (3.6) 0.9048 TLK 20.1 (1.0) 7.5 (1.2) <0.0001 SVA 45.9 (2.7) 51.2 (5.1) 0.3579 TK 22.3 (0.9) 15.0 (1.6) <0.0001 PI−LL 18.1 (1.0) 17.7 (3.8) 0.9336 Difference (△) △ PI −0.19 (0.7) 3.98 (1.10) 0.0463 △ SS −0.09 (0.6) 4.60 (2.2) 0.0434 △ PT −0.13 (0.5) −0.62 (1.7) 0.7774 △ LL 1.76 (0.8) −1.53 (1.9) 0.1141 △ TLK −0.81 (0.6) 0.09 (0.7) 0.3451 △ SVA −9.24 (2.10) −16.92 (10.6) 0.4816 △ TK 0.44 (0.6) −2.53 (1.8) 0.1253 △ PI−LL −1.94 (0.9) 5.50 (2.7) 0.0094 Fusion type Posterolateral fusion 144.9 (67.2) 21.1 (44.6) 0.0199 Interbody fusion 70.7 (32.8) 26.1 (55.4) Blood fusion No (0) 195.5 (90.7) 36.9 (78.9) 0.079 Yes (1) 20.0 (9.3) 10.3 (21.9) Abbreviations: LL, lumbar lordosis; PI, pelvic incidence; PI−LL, pelvic incidence minus lumbar lordosis; PT, pelvic tilt; SS, sacral slope; SVA, sagittal vertical axis; THR, total hip replacement; TK, thoracic kyphosis; TLK, thoracolumbar kyphosis.
Note: △ indicates the difference between the post- and preoperative values.
Variables Univariable OR (95% CI) P Preoperative PI 0.975 (0.950–1.000) 0.0492 SS 0.975 (0.945–1.005) 0.0952 PT 0.989 (0.960–1.018) 0.4503 LL 1.016 (0.995–1.037) 0.134 TLK 0.884 (0.844–0.926) < 0.0001 SVA 1.006 (1.000–1.014) 0.0679 TK 0.968 (0.940–0.996) 0.0255 PI−LL 0.974 (0.955–0.993) 0.0065 Postoperative PI 1.001 (0.976–1.026) 0.9549 SS 1.018 (0.987–1.050) 0.2567 PT 0.983 (0.953–1.014) 0.2849 LL 1.002 (0.982–1.022) 0.8605 TLK 0.894 (0.854–0.935) <0.0001 SVA 1.004 (0.996–1.012) 0.3904 TK 0.946 (0.917–0.975) 0.0004 PI−LL 0.999 (0.979–1.019) 0.9004 Difference (△) △ PI 1.037 (1.007–1.067) 0.0152 △ SS 1.045 (1.014–1.078) 0.0046 △ PT 0.992 (0.953–1.033) 0.6946 △ LL 0.976 (0.950–1.003) 0.086 △ TLK 1.015 (0.974–1.057) 0.4805 △ SVA 0.996 (0.989–1.003) 0.2817 △ TK 0.966 (0.933–0.999) 0.0461 △ PI−LL 1.040 (1.016–1.065) 0.0009 Fusion type Posterolateral fusion Ref 0.0043 Interbody fusion 2.544 (1.341–4.827) Blood fusion No (0) Ref 0.0173 Yes (1) 2.737 (1.195–6.270) Abbreviations: CI, confidence interval; LL, lumbar lordosis;OR, odds ratio; PI, pelvic incidence; PI−LL, pelvic incidence minus lumbar lordosis; PT, pelvic tilt; Ref, reference; SS, sacral slope; SVA, sagittal vertical axis; TK, thoracic kyphosis; TLK, thoracolumbar kyphosis.
Note: △ indicates the difference between the postoperative and preoperative values.
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