Table 1 Characteristics of patients in the training and test cohorts
From: Radiomics nomogram based on dual-energy spectral CT imaging to diagnose low bone mineral density
Characteristics | Training cohort(n = 67) | Test cohort(n = 28) | ||||
|---|---|---|---|---|---|---|
Normal BMD | Abnormally low BMD | P-values | Normal BMD | Abnormally low BMD | P-values | |
Number | 21 | 46 | 9 | 19 | ||
Gender(%) | ||||||
Male | 10 (47.6) | 12 (26.1) | 4 (44.4) | 7 (36.8) | ||
Female | 11 (52.4) | 34 (73.9) | 0.144 | 5 (55.6) | 12 (63.2) | 1.000 |
Age, y, mean ± SD | 61.8 ± 9.4 | 61.6 ± 9.0 | 0.933 | 57.9 ± 10.8 | 63.6 ± 9.2 | 0.1479 |
BMI, mean ± SD | 25.8 ± 2.3 | 23.9 ± 3.5 | 0.021* | 26 ± 2.9 | 24.4 ± 2.6 | 0.1467 |
Values of fat-water imaging, mean ± SD | − 3906.4 ± 763.8 | − 2590.3 ± 718.4 | 0.000* | − 4491.3 ± 1184.3 | − 2581.2 ± 603.3 | 0.000* |