Table 2 HRpQCT indices for each hand joint ROI (N = 201)

 Total bone area (mm²)

278.03 ± 80.02

55.11 ± 12.74

54.32 ± 12.59

93.07 ± 15.24

70.89 ± 15.60

 Cortical area (mm²)

35.16 ± 19.24

13.09 ± 6.70

18.45 ± 7.98

18.98 ± 11.93

18.43 ± 10.07

 Trabecular area (mm²)

186.21 ± 50.41

33.71 ± 10.50

28.15 ± 13.14

63.95 ± 15.04

42.51 ± 14.05

 Total volumetric bone density (mg HA/cm³)

312.77 ± 46.00

439.57 ± 73.54

510.31 ± 87.06

415.58 ± 74.63

469.84 ± 73.64

 Cortical volumetric bone density (mg HA/cm³)

474.04 ± 60.08

635.53 ± 70.48

655.23 ± 70.33

616.47 ± 73.56

615.45 ± 68.28

 Trabecular volumetric bone density (mg HA/cm³)

236.41 ± 34.39

309.66 ± 46.07

360.88 ± 43.86

318.63 ± 40.17

369.82 ± 45.17

 Cortical thickness (mm)

0.36 ± 0.16

0.41 ± 0.20

0.55 ± 0.25

0.47 ± 0.28

0.46 ± 0.24

 Cortical perimeter (mm)

94.43 ± 17.53

31.84 ± 3.66

34.36 ± 5.46

40.28 ± 3.52

39.62 ± 6.05

 Trabecular bone volume fraction^a (%)

0.20 ± 0.03

0.26 ± 0.04

0.30 ± 0.04

0.27 ± 0.03

0.31 ± 0.04

 Trabecular number (1/mm)

2.33 ± 0.33

2.35 ± 0.29

2.27 ± 0.33

2.47 ± 0.21

2.45 ± 0.25

 Trabecular thickness (mm)

0.09 ± 0.01

0.11 ± 0.02

0.13 ± 0.02

0.11 ± 0.01

0.13 ± 0.02

 Trabecular separation (mm)

0.36 ± 0.08

0.32 ± 0.07

0.32 ± 0.07

0.30 ± 0.04

0.29 ± 0.04

 Inhomogeneity of trabecular network^a (mm)

0.24 ± 0.17

0.15 ± 0.09

0.17 ± 0.10

0.13 ± 0.05

0.13 ± 0.06