Table 3 Age-specific analyses of the number of severe osteoporosis patients, patients with lumbar T-score <  − 3.3SD, and non-osteoporosis patients, and BMD and T-score between outpatients and care house patients.

From: Evaluation of bone fragility in cognitively or physically impaired elderly care home patients using radiofrequency echographic multi-spectrometry

 

Outpatients

Care home patients

P-value

All age (70- years old)

N = 189

N = 72

 

 Lumbar BMD, g/cm2

0.585 (0.070)

0.553 (0.062)

0.001*

 Lumbar T-score

 − 3.58 (0.62)

 − 3.78 (0.53)

0.015*

 Femoral neck BMD, g/cm2

0.480 (0.059)

0.456 (0.063)

0.008*

 Femoral neck T-score

 − 3.44 (0.65)

 − 3.71 (0.71)

0.007*

 Total hip BMD, g/cm2

0.604 (0.062)

0.564 (0.079)

 < 0.001*

 Total hip T-score

 − 2.71 (0.62)

 − 3.11 (0.79)

 < 0.001*

 Severe osteoporosis

76 (40.2%)

40 (56.3%)

0.020*

 Lumbar T-score <  − 3.3SD

126 (66.7%)

51 (71.8%)

0.428

 Non-osteoporosis patients

6 (3.2%)

0 (0%)

0.130

70–79 years old

N = 86

N = 8

 

 Lumbar BMD, g/cm2

0.625 (0.054)

0.609 (0.041)

0.409

 Lumbar T-score

 − 3.23 (0.46)

 − 3.36 (0.34)

0.430

 Femoral neck BMD, g/cm2

0.506 (0.053)

0.463 (0.063)

0.047*

 Femoral neck T-score

 − 3.15 (0.59)

 − 3.64 (0.69)

0.038*

 Total hip BMD, g/cm2

0.630 (0.056)

0.585 (0.071)

0.049*

 Total hip T-score

 − 2.45 (0.56)

 − 2.89 (0.71)

0.060

 Severe osteoporosis

18 (20.9%)

5 (62.5%)

0.009*

 Lumbar T-score <  − 3.3SD

38 (44.2%)

4 (50.0%)

0.755

 Non-osteoporosis patients

6 (7.0%)

0 (0%)

0.445

80–89 years old

N = 79

N = 43

 

 Lumbar BMD, g/cm2

0.562 (0.058)

0.558 (0.060)

0.722

 Lumbar T-score

 − 3.79 (0.53)

 − 3.70 (0.49)

0.324

 Femoral neck BMD, g/cm2

0.464 (0.054)

0.466 (0.066)

0.878

 Femoral neck T-score

 − 3.62 (0.60)

 − 3.60 (0.73)

0.853

 Total hip BMD, g/cm2

0.589 (0.060)

0.570 (0.084)

0.168

 Total hip T-score

 − 2.86 (0.60)

 − 3.05 (0.85)

0.180

 Severe osteoporosis

39 (49.4%)

23 (53.5%)

0.667

 Lumbar T-score <  − 3.3SD

58 (86.1%)

31 (72.1%)

0.060

 Non-osteoporosis patients

0 (0%)

0 (0%)

–

90- years old

N = 24

N = 20

 

 Lumbar BMD, g/cm2

0.513 (0.076)

0.522 (0.056)

0.688

 Lumbar T-score

 − 4.13 (0.70)

 − 4.15 (0.49)

0.936

 Femoral neck BMD, g/cm2

0.439 (0.051)

0.431 (0.054)

0.643

 Femoral neck T-score

 − 3.90 (0.56)

 − 3.99 (0.60)

0.634

 Total hip BMD, g/cm2

0.568 (0.058)

0.541 (0.066)

0.172

 Total hip T-score

 − 3.07 (0.59)

 − 3.34 (0.66)

0.171

 Severe osteoporosis

19 (79.2%)

12 (60.0%)

0.173

 Lumbar T-score <  − 3.3SD

20 (83.3%)

16 (80.0%)

0.782

 Non-osteoporosis patients

0 (0%)

0 (0%)

–

  1. Data presented as average (standard deviation of the mean) and number of cases (percentage).
  2. BMD: bone mineral density; SD: standard deviation.
  3. *P < 0.05: There were significant differences between the groups.
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