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Table 3 Threshold effect analysis of the correction degree and Tinetti assessment score/VAS/KSS using piecewise linear regression

From: Influence of lower-limb mechanical axis on the curative effect of medial high tibial osteotomy for knee osteoarthritis

Infection point

Effect size (β)

95%CI

P-value

Tinetti assessment score

   

  < 53.67

0.49

(0.20, 0.78)

0.0009

  ≥ 53.67

− 0.26

(− 0.30, − 0.22)

 < 0.0001

VAS

   

  < 55

− 0.16

(− 0.29, − 0.03)

0.0146

  ≥ 55

0.08

(0.05, 0.10)

 < 0.0001

KSS

   

  < 55.45

2.77

(1.64, 3.90)

 < 0.0001

  ≥ 55.45

− 1.18

(− 1.46, − 0.91)

 < 0.0001

  1. Effect: The correction degree. Cause: Tinetti assessment score/VAS/KSS
  2. All adjusted for age, gender, BMI, and leg
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BMC Surgery

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