From: Monofrequency electrical impedance mammography (EIM) diagnostic system in breast cancer screening
Group 1 n = 196 | Group 2 n = 319 | Group 3 n = 393 | Group 4 n = 292 | p | |
---|---|---|---|---|---|
Age (years) | 29.82 ± 3.92 | 41.60 ± 2.66 | 50.22 ± 2.74 | 62.5 ± 4.75 | P = 0.001 |
Electrical Conductivity Index | 0.35 ± 0.11 | 0.41 ± 0.11 | 0.49 ± 0.12 | 0.54 ± 0.10 | P = 0.001 |
BMI kg/m2 | 26.02 ± 5.78 | 28.94 ± 5.81 | 29.12 ± 5.70 | 29.37 ± 6.06 | P = 0.001 |
% Fat | 33.79 ± 7.67 | 37.41 ± 7.38 | 38.09 ± 6.76 | 38.40 ± 7.89 | P = 0.001 |
Menopausal status Postmenopausal (%) | 6.12 | 12.5 | 58.77 | 96.23 | P = 0.001 |
Hormone use (%) | 46.93 | 35.42 | 34.86 | 34.24 | P = 0.001 |
Smoking (%) | 17.85 | 11.91 | 9.41 | 7.87 | P = 0.001 |
Alcoholism (%) | 15.81 | 11.91 | 7.88 | 5.13 | P = 0.001 |
Previous history of breast cancer (%) | 0 | 0 | 0 | 0 | ns |
Family history One first-degree relative with breast cancer (%) | 6.63 | 8.46 | 8.90 | 10.27 | P = 0.001 |
Palpable lesion(%) | 19.38 | 22.88 | 18.06 | 13.01 | P = 0.001 |