Table 3 Results of the multivariable Cox regression analysis for the risk of ARMD in the THR cohort

Sex

Male

1.0 (ref)

p = .3

2.0 (ref)

p = .6

1.26 (0.47 – 3.31)

Female

1.82 (0.63 – 5.21)

Age

<50 years

1.03 (0.35 – 3.06)

p = .9

1.32 (0.56 – 3.12)

p = .5

1.0 (ref)

≥50 years

1.0 (ref)

Diagnosis

OA

1.11 (0.52 – 2.33)

p = .8

1.29 (0.68 – 2.44)

p = .4

1.0 (ref)

Other

1.0 (ref)

Cup coverage

<25 degrees

1.0 (ref)

p = .2

1.0 (ref)

p = .5

1.28 (0.63 – 2.60)

≥25 degrees

1.73 (0.70 – 4.33)

Stem

Summit

1.0 (ref)

p = .04 p = .035

2.0 (ref)

p = .061

1.73 (0.97 – 3.06)

p = .16

Corail

2.17 (1.03 - 4.56)

0.50 (0.19 – 1.31)

Other

0.26 (0.08 - 0.91)

Femoral diameter

2 mm

1.16 (1.01 - 1.34)

p = .035

1.04 (0.94 - 1.15)

p = .5

increment

Preoperative ROM

<100 degrees

1.0

p = .3

1.0

p = .16

1.46 (0.86 – 2.50)

≥100 degrees

1.39 (0.68 – 2.82)