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Table 4 The change in diagnosis by the selected reference for males

From: The effects of the Korean reference value on the prevalence of osteoporosis and the prediction of fracture risk

 

Cohen’s k

% of agreement

Prevalence difference

50s

k = 0.668

Agreement = 83.3%

1%

   

NHANES diagnosis

 

KNHANES diagnosis

  

Normal

Osteopenia

Osteoporosis

 

n

%

n

%

n

%

n

%

 

Normal

744

51.40

744

51.4

0

0

0

0

 

Osteopenia

685

47.30

230

15.9

455

31.4

0

0

 

Osteoporosis

19

1.30

0

0

11

0.8

8

0.5

 

Total

1,448

100.00

974

67.3

466

32.2

8

0.5

 

60s

k = 0.661

Agreement = 81.1%

3%

   

NHANES diagnosis

 

KNHANES diagnosis

  

Normal

Osteopenia

Osteoporosis

 

n

%

n

%

n

%

n

%

 

Normal

514

36.40

514

36.4

0

0

0

0

 

Osteopenia

807

57.20

226

16.1

581

41.1

0

0

 

Osteoporosis

91

6.40

0

0

40

2.8

51

3.6

 

Total

1,412

100.00

740

52.5

621

43.9

51

3.6

 

70s

k = 0.654

Agreement = 81.4%

6%

   

NHANES diagnosis

 

KNHANES diagnosis

  

Normal

Osteopenia

Osteoporosis

 

n

%

n

%

n

%

n

%

 

Normal

177

18.40

177

18.4

0

0

0

0

 

Osteopenia

634

66.00

123

12.8

511

53.2

0

0

 

Osteoporosis

150

15.60

0

0

56

5.8

94

9.8

 

Total

961

100.00

300

31.2

567

59

94

9.8

 

80s

k = 0.633

Agreement = 78.1%

9%

   

NHANES diagnosis

 

KNHANES diagnosis

  

Normal

Osteopenia

Osteoporosis

 

n

%

n

%

n

%

n

%

 

Normal

20

10.90

20

10.9

0

0

0

0

 

Osteopenia

104

56.80

23

12.6

81

44.2

0

0

 

Osteoporosis

59

32.30

0

0

17

9.3

42

23

 

Total

183

100.00

43

23.5

98

53.5

42

23

 
  1. McNemar-Bowker p-value for all comparisons < 0.001.
  2. NHANES, National Health and Nutrition Examination Survey; KNHANES, Korea National Health and Nutrition Examination Survey.