Table 2 Multivariable analysis for 28,117 patients undergoing cementless total knee arthroplasty

Age (Years)

-

-

-

 < 55

Reference

Reference

Reference

 55–64

0.90

0.87–0.94

 < 0.001

 65–74

0.73

0.70–0.75

 < 0.001

 75 + 

0.57

0.55–0.60

 < 0.001

Sex

-

-

-

 Women

Reference

Reference

Reference

 Men

1.32

1.29–1.35

 < 0.001

CCI

-

-

-

 0

Reference

Reference

Reference

 1

0.98

0.97–0.99

 < 0.001

 2

0.85

0.80–0.91

 < 0.001

 3 + 

0.71

0.62–0.78

 < 0.001

Osteoporosis

0.86

0.81–0.91

 < 0.001

Osteoporosis treatment

0.95

0.91–1.00

0.061

Prior Fragility Fracture

1.07

0.98–1.16

0.160

Diabetes Mellitus

1.01

0.96–1.06

0.834

Tobacco Use

1.07

0.95–1.15

0.061

Underweight (BMI < 18.5)

1.10

0.99–1.21

0.081

Rheumatoid Arthritis

0.96

0.92–1.00

0.063

Dementia

0.84

0.79–0.90

 < 0.001

Chronic Kidney Disease

0.73

0.64–0.83

 < 0.001

Insurance Type

-

-

-

 Commercial

Reference

Reference

Reference

 Cash

2.09

1.74–2.51

 < 0.001

 Government

1.19

1.08–1.30

 < 0.001

 Medicaid

1.30

1.23–1.37

 < 0.001

 Medicare

0.99

0.96–1.02

0.483

Region

-

-

-

 Northeast

Reference

Reference

Reference

 Midwest

0.63

0.61–0.65

 < 0.001

 South

0.87

0.85–0.90

 < 0.001

 West

0.61

0.59–0.63

 < 0.001