|
Characteristics of study participants by bone mass density |
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| Number |
Mean (SD) Age (years) |
Mean (SD) BMI (kg/m2) |
Proportion Caucasian |
Proportion Male |
|
|
|
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| ALL PARTICIPANTS |
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| All BMD |
6046 |
48.9 (14.1) |
25.7 (5.1) |
86.9 |
46.6 |
| BMD <95 |
1607 |
60.7 (9.9) |
25.8 (5.0) |
87.0 |
41.6 |
| BMD 95–105 |
1363 |
50.3 (13.3) |
25.9 (5.2) |
89.4 |
51.1 |
| BMD 105–115 |
1491 |
43.8 (12.5) |
25.6 (5.1) |
87.0 |
49.8 |
| BMD >115 |
1585 |
40.5 (11.1) |
25.5 (5.0) |
84.4 |
44.8 |
| p-value for BMD trend |
0.0001 |
0.07 |
0.009 |
0.10 |
|
| MALES |
|||||
| All BMD |
2818 |
49.3 (14.1) |
25.8 (4.2) |
87.0 |
|
| BMD <95 |
668 |
59.4 (10.8) |
25.4 (4.4) |
87.1 |
|
| BMD 95–105 |
697 |
51.6 (13.4) |
25.7 (4.1) |
88.8 |
|
| BMD 105–115 |
743 |
45.4 (13.0) |
25.9 (4.3) |
86.7 |
|
| BMD >115 |
710 |
41.6 (12.3) |
26.1 (4.1) |
85.5 |
|
| p-value for BMD trend |
0.0001 |
0.001 |
0.21 |
||
| FEMALES |
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| All BMD |
3228 |
48.5 (14.1) |
25.6 (5.7) |
86.7 |
|
| BMD <95 |
939 |
61.5 (9.2) |
26.1 (5.3) |
86.9 |
|
| BMD 95–105 |
666 |
48.8 (13.1) |
26.0 (6.2) |
90.1 |
|
| BMD 105–115 |
748 |
42.3 (11.8) |
25.4 (5.7) |
87.3 |
|
| BMD >115 |
875 |
39.7 (9.9) |
25.1 (5.6) |
83.5 |
|
| p-value for BMD trend |
0.0001 |
0.0001 |
0.02 |
||
| FEMALES > 55 YEARS |
|||||
| All BMD |
1162 |
64.0 (5.6) |
26.9 (5.6) |
86.4 |
|
| BMD <80.3 |
288 |
66.5 (5.2) |
25.8 (5.2) |
88.9 |
|
| BMD 80.3–89.7 |
289 |
64.8 (5.5) |
26.7 (5.4) |
85.8 |
|
| BMD 89.7–99.9 |
291 |
63.3 (5.5) |
27.1 (5.3) |
88.7 |
|
| BMD >99.9 |
294 |
61.7 (5.1) |
28.2 (6.4) |
87.3 |
|
| p-value for BMD trend |
0.0001 |
0.0001 |
0.06 |
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|
BMI; Body Mass Index. BMD; Bone Mineral Density. Two males and 1 female had missing values for BMI. P-values for BMD trend from linear regression analysis with single indicator variable for BMD (age, BMI) and Mantel-Hansel Chi-square test for trend (race, gender). | |||||
Nelson et al. BMC Cancer 2002 2:22 doi:10.1186/1471-2407-2-22 |
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