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Table 3 EQ-5D and cost data

From: Cost-utility analysis of total knee arthroplasty alone and in comparison with post-surgical rehabilitation and conservative treatment in the Republic of Kazakhstan

Variable

Type of intervention

Test of difference:

Conservative treatment, n = 122

TKA, n = 62

TKA with rehabilitation, n = 60

ANOVA

Mean

SD

Mean

SD

Mean

SD

F

p-value

Mean EQ-5D at baseline

59.88

4.77

63.26

3.76

63.93

1.95

26.837

0.000

Mean EQ-5D at 6 months after treatment

70.09

7.73

71.67

4.64

85.61

3.21

135.034

0.000

Mean EQ-5D at 12 months after treatment

63.04

4.15

80.38

5.28

91.07

2.63

995.675

0.000

EQ-5D improved at 12 months, p-value*

0.523

 < 0.001

 < 0.001

  

Mean hospital costs at 12 months, USD

5905.79

343.75

5156.50

422.56

4479.44

311.94

  

Life expectancy in 2019 = 73.13 years

8.08

3.19

8.47

3.01

6.18

2.77

10.3945

0.000

Mean QALYs gained at 12 months

0.24

0.28

1.48

0.83

1.66

0.70

162.44508

0.000

Mean QALYs gained at 12 months (discounted by 3%)

0.23

0.27

1.43

0.80

1.61

0.68

162.84544

0.000

Cost per QALY, USD

30795.75

18657.38

6323.69

13316.57

2670.32

1735.35

96.418735

0.000

Cost per QALY, USD (discounted by 3%)

31719.62

19217.10

6513.40

13716.06

2750.43

1787.41

96.418727

0.000

CUR

4187.01

549.82

3914.25

320.76

3400.30

236.73

65.000559

0.000

ICER

  

−606.32

 

−3581.42

   
  1. *The Paired Samples t-Test
  2. CUR Cost-Utility Ratio, ICER incremental Cost-Effectiveness Ratio, SD Standard Deviation, TKA Total Knee Arthroplasty, QALY Quality-adjusted Life Years, USD United States Dollars