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Table 3 Relationship between preoperative symptom duration and u-PROs

From: Dose-response relationship between symptom duration and postoperative patient-reported outcomes in patients with adult spinal deformity

Variable

Crude model

Minimally adjusted model

Fully adjusted model

Continuous symptom duration

3.29 (1.74–3.88) p < 0.001

2.38 (1.71–3.12) p < 0.001

1.78 (1.21–2.10) p < 0.001

Categorical symptom duration

   

6 months

Ref

Ref

Ref

12 months

2.73 (0.98–3.75) p = 0.231

2.43 (0.82–3.43) p = 0.334

2.06 (0.67–2.81) p = 0.571

18 months

4.56 (1.78–12.52) p < 0.001

3.24 (0.67–6.10) p = 0.245

2.82 (0.53–5.64) p = 0.447

≥ 24 months

9.58 (5.16–14.78) p < 0.001

7.35 (4.16–11.72) p < 0.001

4.55 (3.10–7.81) p < 0.001

  1. Crude model: we did not adjust other covariants
  2. Minimally adjusted model: we adjusted CCI and ASA score
  3. Fully adjusted model: we adjusted CCI, ASA, frailty, TK, LL, PT, PI, SVA, TPA, number of fused levels, surgical approach, operative time, EBL, intraoperative blood loss, reoperation and major complication
  4. CCI: Charlson comorbidity index; ASA: American Society of Anaesthesiologists; TK: thoracic kyphosis; LL: lumbar lordosis; PT: pelvic tilt; PI: pelvic incidence; SVA: sagittal vertical axis; TPA: T1 pelvic angle; EBL: estimated blood loss
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Journal of Orthopaedic Surgery and Research

ISSN: 1749-799X