Skip to main content

Table 4 Univariate regression analysis: association of baseline variables with increased EQ-5D score from preoperative assessment to 1 year after surgery

From: Predictors for quality of life improvement after surgery for degenerative cervical myelopathy: a prospective multi-center study

Characteristic

β

95% CI

P

Age (years)

− 0.001

− 0.005 to 0.002

0.38

Sex (female)

0.011

− 0.022 to 0.045

0.52

BMI

− 0.004

− 0.013 to 0.004

0.32

OPLL

0.002

− 0.031 to 0.036

0.89

Albumin (g/dL)

− 0.003

− 0.064 to 0.057

0.92

Grip strength average

0.001

− 0.003 to 0.005

0.55

EQ-5D

− 0.556

− 0.706 to − 0.406

< 0.0001

C-JOA sore

− 0.013

− 0.026 to − 0.0003

0.045

Nurick grade

0.019

− 0.015 to 0.052

0.27

C2–7 angle

− 0.001

− 0.004 to 0.002

0.48

C2–7 ROM

0.0002

− 0.002 to 0.002

0.83

C2–7 SVA

0.001

− 0.001 to 0.003

0.31

C7 slope

− 0.0005

− 0.003 to 0.002

0.74

TK

− 0.0005

− 0.003 to 0.002

0.73

PT

0.004

− 0.001 to 0.009

0.14

TPA

0.003

− 0.0002 to 0.006

0.07

LL

0.004

− 0.001 to 0.009

0.14

SVA

0.00007

− 0.0007 to 0.0009

0.86

SS

− 0.003

− 0.007 to 0.001

0.18

LSTV

− 0.04

− 0.098 to 0.008

0.09

  1. β regression coefficient, BMI body mass index, OPLL ossification of the posterior longitudinal ligament, EQ-5D European Quality of Life-5 Dimensions, JOA Japanese Orthopaedic Association, ROM range of motion, SVA sagittal vertical axis, TK thoracic kyphosis, PT pelvic tilt, TPA T1 pelvic angle, LL lumbar lordosis, SS sacral slope, LSTV lumbosacral transitional vertebra
  2. An increase in EQ-5D score from preoperative assessment to 1 year after surgery was defined as EQ-5D score at 1 year after surgery—preoperative EQ-5D score