Lunar DPX-IQ, Руководство оператора

Страница: 146 / 166

I-4 Comparison to Reference Population DPX-IQ Operator’s Manual
The DPX reference values for femur BMD correspond closely to the large sample of
white males (n=1676) and females (n=1541) collected by the third National Health
and Nutrition Examination Survey (NHANES III) and published by Looker et al.
13
The NHANES values were converted to DPX-equivalent BMD using the regression
equations established for subjects in vivo at UCSF
52
(figures I-1 through I-4).
Figures I-1 through I-4. Comparison of DPX reference values for femur neck
and total femur with NHANES Values
13
converted to DPX-equivalent BMD
52
Table I-6 lists the mean BMD used in LUNAR’s total body reference data for females.
Table I-7 lists the mean BMD used in LUNAR’s total body reference data for males.
BMD values are given for the total body and five subregions: arms, legs, trunk, pelvis,
and spine. Table I-8 lists the mean BMD used in LUNAR’s radius shaft
reference data.
Figure I-1. Figure I-2.
Figure I-3. Figure I-4.
1.2
1.1
1.0
0.9
0.8
0.7
0.6
20 30 40 50 60 70 80
Femur Neck BMD (g/cm
2
)
Age (years)
DPX
NHANES
Female
1.2
1.1
1.0
0.9
0.8
0.7
0.6
Femur Total BMD (g/cm
2
)
DPX
NHANES
Female
20 30 40 50 60 70 80
Age (years)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
Femur Neck BMD (g/cm
2
)
DPX
NHANES
Male
20 30 40 50 60 70 80
Age (years)
1.2
1.1
1.0
0.9
0.8
0.7
0.6
Total Femur BMD (g/cm
2
)
DPX
NHANES
Male
20 30 40 50 60 70 80
Age (years)