|
Agreement data for predicted thoracic gas volume |
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| Regression |
Residual Plot |
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|
|
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| R2 |
SEE |
r |
P |
Mean difference (95% CI) |
|
|
|
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| European American |
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| Girls |
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| TGV (adult) |
0.56 |
0.37 |
-0.65 |
0.001 |
0.59 (-0.12;1.30) |
| TGV (child-specific) |
0.61 |
0.35 |
-0.56 |
0.001 |
0.11 (-0.57;0.78) |
| Boys |
|||||
| TGV (adult) |
0.72 |
0.47 |
-0.59 |
0.01 |
0.32 (-0.58;1.22) |
| TGV (child-specific) |
0.73 |
0.46 |
-0.50 |
0.05 |
0.06 (-0.83;0.94) |
|
|
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| African American |
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| Girls |
|||||
| TGV (adult) |
0.71 |
0.24 |
-0.06 |
0.78 |
0.71 (0.18;1.24) |
| TGV (child-specific) |
0.73 |
0.23 |
-0.01 |
0.96 |
0.23 (-0.28;0.75) |
| Boys |
|||||
| TGV (adult) |
0.65 |
0.29 |
0.00 |
0.99 |
0.26 (-0.44;0.96) |
| TGV (child-specific) |
0.67 |
0.29 |
-0.03 |
0.90 |
-0.02 (-0.67;0.64) |
|
|
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| European |
|||||
| Girls |
|||||
| TGV (adult) |
0.64 |
0.42 |
-0.72 |
0.001 |
0.41 (-0.42;1.23) |
| TGV (child-specific) |
0.76 |
0.35 |
-0.16 |
0.37 |
0.06 (-0.68;0.75) |
| Boys |
|||||
| TGV (adult) |
0.79 |
0.46 |
-0.81 |
0.001 |
-0.23 (-1.24;0.78) |
| TGV (child-specific) |
0.80 |
0.46 |
-0.16 |
0.27 |
-0.22 (-1.15;0.71) |
|
TGV; Thoracic gas volume. TGV (adult); Thoracic gas volume predicted using the adult-based proprietary equations (developed using Crapo et al. prediction of functional residual capacity and tidal volume constants for males and females) [18]. TGV (child-specific); Thoracic gas volume predicted using the child-specific equations of Fields et al. [16]. Dependent variable is the measured TGV. r; The Pearson correlation coefficient between the regression residuals and the criterion; criterion is measured thoracic gas volume). P value indicates whether the r value is significant and estimation bias is present. SEE; Standard error of the estimate. | |||||
Higgins et al. BMC Pediatrics 2006 6:18 doi:10.1186/1471-2431-6-18 |
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