Table 3.
Variables | Lumbar spine BMD
|
Total hip BMD
|
Femoral neck BMD
|
||||||
---|---|---|---|---|---|---|---|---|---|
β | t | P-value | β | t | P-value | β | t | P-value | |
Age, years | −0.050 | −0.310 | 0.759 | −0.006 | −0.044 | 0.966 | 0.131 | 0.878 | 0.396 |
FEV1, % | 0.121 | 0.734 | 0.471 | −0.074 | −0.539 | 0.596 | −0.177 | −1.166 | 0.259 |
BMI, kg/m2 | 0.595 | 1.379 | 0.182 | 0.744 | 2.083 | 0.050 | 0.327 | 0.823 | 0.420 |
FFMI, kg/m2 | 0.100 | 0.222 | 0.826 | −0.153 | −0.409 | 0.688 | 0.247 | 0.595 | 0.558 |
CAT score | 0.116 | 0.689 | 0.498 | −0.121 | −0.872 | 0.393 | −0.384 | −2.486 | 0.021 |
DPA, cts·min−1 | 0.059 | 0.299 | 0.768 | 0.191 | 1.168 | 0.256 | −0.058 | −0.320 | 0.752 |
Notes: Lumbar spine BMD: adjust R2=0.360, F=3.247, P=0.017. Total hip BMD: adjust R2=0.561, F=6.112, P=0.001. Femoral neck BMD: adjust R2=0.457, F=4.366, P=0.004.
Abbreviations: BMD, bone mineral density; FEV1, forced expiratory volume in 1 second; BMI, body mass index; FFMI, fat-free mass index; CAT, COPD assessment test; DPA, daily physical activity.