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Table 4 Multivariable analyses for LOS and complications

From: Enhanced recovery after surgery (ERAS) program for elderly patients with short-level lumbar fusion

Characteristic

Multivariable linear regression for LOS

Multivariable logistic regression for any complications

Coefficient (95% CI)

p value

OR (95% CI)

p value

Age

0.24 (− 0.13 to 0.26)

0.379

1.15 (0.89–1.26)

0.563

Female

1.28 (− 0.51 to 1.10)

0.085

1.07 (0.91–1.14)

0.210

BMI

− 0.033 (− 0.13 to 0.07)

0.535

0.97 (0.92–1.06)

0.085

Smoker

0.76 (− 0.21 to 1.11)

0.137

2.10 (0.85–3.24)

0.121

Comorbidities

1.26 (0.29 to 2.23)

0.023

1.56 (0.77–2.91)

0.074

ASA ≥  3

0.98 (− 0.03 to 1.92)

0.062

2.31 (0.98–4.53)

0.060

Fusion number

2.15 (− 1.29 to 3.37)

0.236

1.98 (0.91–2.58)

0.140

Operative time

0.36 (− 0.19 to 1.08)

0.151

1.33 (0.86–3.46)

0.088

Blood loss

1.12 (− 2.56 to 4.95)

0.079

1.44 (0.65–1.90)

0.872

ERAS

− 2.98 (− 3.76 to − 1.64)

0.002

0.72 (0.31–1.09)

0.077

Preoperative JOA

0.34 (− 0.46 to 0.88)

0.235

0.81 (0.70–1.34)

0.179

Preoperative VAS (back)

0.65 (− 0.70 to 2.01)

0.949

1.12 (0.81–2.03)

0.235

Preoperative VAS (leg)

0.98 (0.01 to 1.37)

0.656

2.09 (0.95–2.71)

0.068

Preoperative ODI (%)

− 0.02 (− 0.07 to 0.01)

0.179

1.36 (0.74–2.28)

0.307