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Official Journal of the Italian Society of Orthopaedics and Traumatology

Table 1 Inter-observer and intra-observer variability in measurement of sensation score

From: A prospective randomized study in 20 patients undergoing bilateral TKA comparing midline incision to anterolateral incision

S. no./groups to be compared

Sensation score

p value

Limits of agreement

Mean ratio

95% confidence interval

O1S1

O1S2

O2S1

O2S2

    

1

16

16

16

16

    

2

27

27

27

27

    

3

18

19

19

19

    

4

20

19

20

19

    

5

17

18

19

18

    

6

21

22

21

21

    

7

18

18

18

18

    

8

24

24

23

24

    

9

17

17

17

17

    

10

25

26

25

26

    

O1S1 vs O2S1

    

0.44

1.99–1.59

0.99

0.96–1.02

O1S2 vs O2S2

    

0.34

0.62–0.82

1.00

0.99–1.01

O1S1 vs O1S2

    

0.19

1.81–1.21

0.98

0.96–1.00

O2S1 vs O2S2

    

1.00

1.51–1.51

1.00

0.98–1.02

  1. O1S1 observer 1—1st measurement, O1S2 observer 1—2nd measurement, O2S1 observer 2—1st measurement, O2S2 observer 2—2nd measurement, S.no. serial number