Table 1 Significance areas for covariates in the MUR model for the anthropometric variables (N = 38,868) of the model for the left kidney. The total area has been split into areas of positive, negative, and total associations. The standardised regression coefficients (\(\widehat{\beta }\)) are presented as median (interquartile range—IQR) across all vertices of the left kidney surface and the significance areas as a percentage (%) of the vertices with statistically significant associations
From: Kidney shape statistical analysis: associations with disease and anthropometric factors
Left Kidney | Standardised \(\widehat{\beta }<0\) | Standardised \(\widehat{\beta }>0\) | Total | ||
|---|---|---|---|---|---|
Beta coefficients | Significance area | Beta coefficients | Significance area | Significance area | |
Age | -0.10 (0.07) | 89.84% | 0.03 (0.02) | 5.5% | 95.32% |
BMI | -0.10 (0.07) | 14.79% | 0.20 (0.09) | 85% | 99.79% |
WHR | -0.04 (0.04) | 37.44% | 0.04 (0.03) | 54.98% | 92.42% |
Alcohol intake frequency | -0.06 (0.03) | 14.47% | 0.07 (0.02) | 84.43% | 98.9% |
Smoking status | -0.05 (0.01) | 3.88% | 0.12 (0.05) | 84.36% | 88.24% |
Ibuprofen medication | -0.04 (0.03) | 0.5% | 0.04 (0.02) | 84.27% | 84.77% |
Sodium in urine | -0.02 (0.02) | 31.05% | 0.02 (0.01) | 48.81% | 79.86% |
Urea | -0.06 (0.01) | 88.84% | 0.02 (0.02) | 6.6% | 95.43% |
CKD | -0.33 (0.11) | 91.6% | 0.09 (0.04) | 3.74% | 95.34% |
T2D | -0.06 (0.02) | 1.78% | 0.20 (0.08) | 85.5% | 87.28% |
Hypertension | -0.03 (0.02) | 19.59% | 0.06 (0.04) | 67.44% | 87.03% |
Age * CKD | -0.06 (0.03) | 67.31% | 0.06 (0.02) | 9.54% | 76.85% |
Age * T2D | -0.06 (0.03) | 89.98% | 0.002 (0.002) | 0.07% | 90.05% |
Age * Hypertension | -0.03 (0.02) | 71.39% | 0.02 (0.003) | 1% | 72.4% |
BMI * T2D | -0.05 (0.02) | 59% | 0.05 (0.02) | 5.09% | 64.09% |
WHR * T2D | -0.07 (0.04) | 49.93% | 0.05 (0.02) | 8.97% | 58.9% |