Table 3 Comparison of daily activity difficulty between low bone mass postmenopausal women with and without hypovitaminosis D

Number of subjects

2272

7033

-

Trunk flexion

Difficulty

∙Yes

682 (30.0%)

1676 (23.8%)

<0.001

1.37 (1.24 – 1.53)

∙No

1568 (69.0%)

5298 (75.3%)

∙Don’t perform this task

22 (1.0%)

58 (0.8%)

Difficulty level

∙None

1568 (69.7%)

5298 (76.0%)

<0.001

0.73 (0.65 – 0.81)

∙Some

474 (21.0%)

1209 (17.3%)

1.27 (1.13 – 1.43)

∙Severe

181 (8.0%)

414 (5.9%)

1.39 (1.15 – 1.67)

∙Incapable of

28 (1.2%)

53 (0.8%)

1.64 (1.01 – 2.66)

Lift a 5 kg object from floor

Difficulty

∙Yes

744 (32.8%)

1846 (26.2%)

<0.001

1.41 (1.27 – 1.57)

∙No

1391 (61.3%)

4880 (69.4%)

∙Don’t perform this task

136 (6.0%)

307 (4.4%)

Difficulty level

∙None

1391 (65.2%)

4881 (72.6%)

<0.001

0.71 (0.64 – 0.79)

∙Some

462 (21.6%)

1234 (18.3%)

1.23 (1.09 – 1.39)

∙Severe

211 (9.9%)

479 (7.1%)

1.43 (1.20 – 1.70)

∙Incapable of

70 (3.3%)

131 (1.9%)

1.71 (1.26 – 2.31)

Reach for an object above the head

Difficulty

∙Yes

479 (21.1%)

1085 (15.4%)

<0.001

1.49 (1.32 – 1.68)

∙No

1750 (77.0%)

5890 (83.8%)

∙Don’t perform this task

43 (1.9%)

57 (0.8%)

Difficulty level

∙None

1750 (78.5%)

5891 (84.5%)

<0.001

0.67 (0.60 – 0.76)

∙Some

322 (14.5%)

798 (11.4%)

1.31 (1.13 – 1.51)

∙Severe

129 (5.8%)

249 (3.6%)

1.66 (1.33 – 2.08)

∙Incapable of

27 (1.2%)

36 (0.5%)

2.36 (1.39 – 4.01)

Put own socks on

Difficulty

∙Yes

581 (25.6%)

1513 (21.5%)

<0.001

1.36 (1.22 – 1.52)

∙No

1511 (66.5%)

5353 (76.1%)

∙Don’t perform this task

179 (7.9%)

166 (2.4%)

Difficulty level

∙None

1511 (72.2%)

5353 (78.0%)

<0.001

0.73 (0.66 – 0.82)

∙Some

440 (21.0%)

1178 (17.2%)

1.29 (1.14 – 1.46)

∙Severe

126 (6.0%)

309 (4.5%)

1.36 (1.09 – 1.69)

∙Incapable of

15 (0.7%)

25 (0.4%)

1.98 (0,99 – 3.90)

Getting in and out of a car

Difficulty

∙Yes

760 (33.5%)

1901 (27.0%)

<0.001

1.38 (1.25 – 1.53)

∙No

1466 (64.6%)

5075 (72.2%)

∙Don’t perform this task

45 (0.2%)

56 (0.8%)

Difficulty level

∙None

1381 (69.6%)

4005 (69.3%)

0.849

1.01 (0.91 – 1.14)

∙Some

526 (26.5%)

1577 (27.3%)

0.96 (0.86 – 1.08)

∙Severe

75 (3.8%)

193 (3.3%)

1.14 (0.86 – 1.50)

∙Incapable of

1 (0.1%)

2 (0.1%)

1.46 (NA)

Standing up about an hour

Difficulty

∙Yes

1052 (46.3%)

2542 (36.1%)

<0.001

1.56 (1.42 – 1.73)

∙No

1142 (50.3%)

4318 (61.4%)

∙Don’t perform this task

77 (3.4%)

172 (2.4%)

Difficulty level

∙None

1142 (52.1%)

4318 (63.0%)

<0.001

0.64 (0.58 – 0.71)

∙Some

701 (32.0%)

1695 (24.7%)

1.43 (1.29 – 1.59)

∙Severe

298 (13.6%)

724 (10.6%)

1.33 (1.15 – 1.54)

∙Incapable of

52 (2.4%)

122 (1.8%)

1.34 (0.95 – 1.88)

Sitting down about half an hour

Difficulty

∙Yes

526 (23.2%)

1391 (19.8%)

0.002

1.22 (1.09 – 1.37)

∙No

1737 (76.5%)

5616 (79.9%)

∙Don’t perform this task

9 (0.4%)

25 (0.4%

Difficulty level

∙None

1737 (76.8%)

5616 (80.2%)

0.003

0.82 (0.73 – 0.92)

∙Some

406 (17.9%)

1089 (15.5%)

1.19 (1.05 – 1.35)

∙Severe

116 (5.1%)

283 (4.0%)

1.28 (1.02 – 1.61)

∙Incapable of

4 (0,2%)

18 (0.3%)

0.69 (NA)