Skip to main content

Table 5 The change in diagnosis by the selected reference for females

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 = 0.457

Agreement = 69.5%

6%

   

NHANES diagnosis

 

KNHANES diagnosis

  

Normal

Osteopenia

Osteoporosis

 

n

%

n

%

n

%

n

%

 

Normal

741

53.10

390

28

351

25.1

0

0

 

Osteopenia

622

44.60

0

0

547

39.2

75

5.4

 

Osteoporosis

32

2.30

0

0

0

0

32

2.3

 

Total

1,395

100.00

390

28

898

64.3

107

7.7

 

60s

k = 0.446

Agreement = 71.1%

13%

KNHANES diagnosis

NHANES diagnosis

 
 

Total

Normal

Osteopenia

Osteoporosis

 
 

n

%

n

%

n

%

n

%

 

Normal

414

24.40

155

9.1

259

15.3

0

0

 

Osteopenia

1,100

64.80

0

0

870

51.2

230

13.6

 

Osteoporosis

183

10.80

0

0

0

0

183

10.8

 

Total

1,697

100.00

155

9.1

1,129

66.5

413

24.4

 

70s

k = 0.553

Agreement = 75%

   

19%

KNHANES diagnosis

NHANES diagnosis

  
 

Total

 

Normal

Osteopenia

Osteoporosis

 
 

n

%

n

%

n

%

n

%

 

Normal

101

7.90

27

2.1

74

5.8

0

0

 

Osteopenia

742

57.90

0

0

496

38.7

246

19.2

 

Osteoporosis

439

34.20

0

0

0

0

439

34.2

 

Total

1,282

100.00

27

2.1

570

44.5

685

53.4

 

80s

k = 0.565

Agreement = 82%

17%

KNHANES diagnosis

NHANES diagnosis

 
 

Total

 

Normal

Osteopenia

Osteoporosis

 
 

n

%

n

%

n

%

n

%

 

Normal

8

2.60

1

0.3

7

2.3

0

0

 

Osteopenia

99

32.40

0

0

51

16.7

48

15.7

 

Osteoporosis

199

65.00

0

0

0

0

199

65

 

Total

306

100.00

1

0.3

58

19

247

80.7

 
  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.