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Table 3 Multivariate Logistic Regression Analysis of Variables Significantly Associated with Risk of In-Hospital Death and Postoperative Complications

From: Influence of frailty and its interaction with comorbidity on outcomes among total joint replacement

Variable

ORa

95% CIb

P Value

In-hospital death

 Age group ≥ 80 years

2.97051

[2.22332,3.9688]

 < 0.0001

 Female

0.58008

[0.55220–0.6094]

 < 0.0001

 Emergency/urgent admission

0.11309

[0.10627–0.1203]

 < 0.0001

 Medium bed size

1.13505

[1.04606–1.2316]

0.00236

 Large bed size

1.20576

[1.11979–1.2983]

 < 0.0001

 Teaching hospital

1.12946

[1.07281–1.1891]

 < 0.0001

 Urban hospital location

0.91320

[0.85014–0.9809]

0.01288

 Frail

5.09046

[3.9917–6.44707]

 < 0.0001

 Charlson comorbidity index = 1

1.16483

[0.1909–7.10789]

0.86867

 Charlson comorbidity index = 2

1.01096

[0.1607–6.35993]

0.99073

 Charlson comorbidity index ≥ 3

1.88958

[0.3041–11.74262]

0.49478

Surgical complications

 40 to 64 years

0.17026

[0.13909–0.20842]

 < 0.0001

 65 to 80 years

0.07460

[0.05996–0.09281]

 < 0.0001

  > 80 years

0.05248

[0.04036–0.06826]

 < 0.0001

 Female

0.57444

[0.50722–0.65057]

 < 0.0001

 Emergency/urgent admission

0.19200

[0.16757–0.21999]

 < 0.0001

 Medium bed size

1.13505

[1.04606–1.2316]

0.00236

 Large bed size

1.20576

[1.11979–1.2983]

 < 0.0001

 Teaching hospital

2.11839

[1.85358–2.42104]

 < 0.0001

 Urban hospital location

1.63107

[1.25291–2.12337]

0.00028

 Frail

4.43661

[1.60858–12.23655]

0.00400

 Charlson comorbidity index = 1

0.37590

[0.03719–3.79894]

0.40707

 Charlson comorbidity index = 2

0.34613

[0.03080–3.88964]

0.39004

 Charlson comorbidity index ≥ 3

0.76419

[0.07303–7.99691]

0.82237

Medical complications

 40 to 64 years

1.64373

[1.53057–1.76525]

 < 0.0001

 65 to 80 years

2.09409

[1.95107–2.24759]

 < 0.0001

  > 80 years

4.15499

[3.86966–4.46135]

 < 0.0001

 Female

0.79571

[0.78688–0.80465]

 < 0.0001

 Emergency/urgent admission

0.33972

[0.33555–0.34393]

 < 0.0001

 Medium bed size

1.18791

[1.16748–1.20869]

 < 0.0001

 Large bed size

1.22394

[1.20499–1.24318]

 < 0.0001

 Teaching hospital

1.14781

[1.13486–1.16091]

 < 0.0001

 Urban hospital location

1.04192

[1.02415–1.06001]

 < 0.0001

 Frail

2.00216

[1.81372–1.90562]

 < 0.0001

 Charlson comorbidity index = 1

3.09695

[1.58599–2.21624]

 < 0.0001

 Charlson comorbidity index = 2

4.79525

[2.46746,3.43978]

 < 0.0001

 Charlson comorbidity index ≥ 3

18.30816

[9.44622, 13.15078]

 < 0.0001

  1. aOR Odds Ratio
  2. bCI Confidence Interval
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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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