Table 5. A comparison of mean standardized values for NIR properties among radiographic density groups and statistical P values for difference from the fatty group.
| NIR property | Subject radiographic density | Correlation (95% confidence interval) | Comparison with fatty group, P |
|---|---|---|---|
| HbT | Fatty | -0.22 (-0.93, 0.49) | |
| HbT | Scattered | 0.45 (-0.70, 1.60) | 0.42 |
| HbT | Het. dense | -0.53 (-1.43, 0.37) | 0.23 |
| HbT | Extr. dense | 0.11 (-1.27, 1.48) | 0.87 |
| StO2, % | Fatty | 0.40 (-0.55, 1.35) | |
| StO2, % | Scattered | 0.16 (-1.37, 1.69) | 0.83 |
| StO2, % | Het. dense | 0.56 (-0.65, 1.77) | 0.35 |
| StO2, % | Extr. dense | 0.92 (-0.90, 2.75) | 0.31 |
| Water, % | Fatty | 0.09 (-0.72, 0.90) | |
| Water, % | Scattered | -0.02 (-1.32, 1.28) | 0.98 |
| Water, % | Het. dense | 0.36 (-0.69, 1.40) | 0.48 |
| Water, % | Extr. dense | -1.20 (-2.75, 0.34) | 0.12 |
| log(scatt. amp.) | Fatty | -0.44 (-1.18, 0.29) | |
| log(scatt. amp.) | Scattered | -0.39 (-1.58, 0.79) | 0.50 |
| log(scatt. amp.) | Het. dense | -0.48 (-1.42, 0.46) | 0.30 |
| log(scatt. amp.) | Extr. dense | -1.60 (-3.01, -0.19) | 0.03 |
| Scattering power | Fatty | -0.57 (-1.29, 0.15) | |
| Scattering power | Scattered | -0.48 (-1.65, 0.69) | 0.40 |
| Scattering power | Het. dense | -0.67 (-1.58, 0.24) | 0.14 |
| Scattering power | Extr. dense | -1.76 (-3.16, -0.36) | 0.02 |
Het., heterogeneous; Extr., extremely; scatt. amp., scattering amplitude.