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Table 4 Prevalence of osteopenia and osteoporosis according to two different BMDRV based on age groups

From: Comparison of the prevalence of osteoporosis in people with spinal cord injury according to bone mineral density reference values for the diagnosis of osteoporosis: a retrospective, cross-sectional study

Sex

Age

Normal

Osteopenia

Osteoporosis

p a

(years)

PODXA

N (%)

PONHA

N (%)

PODXA

N (%)

PONHA

N (%)

PODXA

N (%)

PONHA

N (%)

Male

All ages

191 (31.47)

125 (20.59)

323 (53.21)

320 (52.72)

93 (15.32)

162 (26.69)

 < 0.0001***

(N = 607)

50–54

41 (35.65)

28 (24.35)

63 (54.78)

67 (58.26)

11 (9.57)

20 (17.39)

0.0002***

55–59

47 (30.32)

26 (16.77)

85 (54.84)

88 (56.77)

23 (14.84)

41 (26.45)

 < .0001***

60–64

39 (29.77)

27 (20.61)

68 (51.91)

68 (51.91)

24 (18.32)

36 (27.48)

0.0001***

65–69

33 (36.26)

26 (28.57)

45 (59.45)

40 (43.96)

13 (14.29)

25 (27.47)

0.0003***

70 + 

31 (26.96)

18 (15.65)

62 (53.91)

57 (49.57)

22 (19.13)

40 (34.78)

 < 0.0001***

Female

All ages

38 (15.32)

16 (6.45)

103 (41.53)

60 (24.16)

107 (43.15)

172 (69.35)

 < 0.001***

(N = 248)

50–54

16 (28.57)

7 (12.50)

28 (50.00)

20 (35.71)

12 (21.43)

29 (51.79)

 < 0.001***

55–59

9 (15.79)

3 (5.26)

32 (56.14)

20 (35.09)

16 (28.07)

34 (59.65)

 < 0.001***

60–64

7 (23.33)

4 (13.33)

13 (43.33)

8 (26.67)

10 (33.33)

18 (60.00)

0.0117*

65–69

1 (2.63)

0 (0.00)

17 (44.74)

6 (15.79)

20 (52.63)

32 (84.21)

0.0033b**

70 + 

5 (7.46)

2 (2.99)

13 (19.40)

6 (8.96)

49 (73.13)

59 (88.06)

0.0046**

  1. Abbreviations: BMDRV Bone mineral density reference value, N Number, TDXA T-score provided by the DXA manufacturer, TNHA T-score provided by a single reference population of the NHANES
  2. aChi-square test
  3. bFisher’s exact test
  4. For *, **, and ***, the mean difference is significant at the 0.05, 0.01, and 0.001 levels, respectively
  5. Statistical significance is set at p < 0.05