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Table 4 Univariate modelling results using the validation dataset

From: A novel and fully automated mammographic texture analysis for risk prediction: results from two case-control studies

Parameter Standardized odds ratio 95% CI for odds ratio χ2 P value mC 95% CI for mC
Risk score 1.36 (1.20–1.55) 22.39 2.22E-06 0.58 (0.54– 0.62)
Coarseness 1.06 (0.92–1.22) 0.61 4.34E-01 0.50 (0.46– 0.54)
Contrast 0.87 (0.76–0.99) 4.33 3.75E-02 0.46 (0.42– 0.50)
SD 1.01 (0.89–1.15) 0.03 8.55E-01 0.50 (0.45– 0.54)
Sum average 16 1.29 (1.14–1.47) 15.37 8.85E-05 0.58 (0.54– 0.62)
Sum average 32 1.32 (1.1–1.50) 17.55 2.80E-05 0.58 (0.53– 0.62)
Sum average 64 1.38 (1.21–1.57) 23.81 1.06E-06 0.59 (0.55–0.63)
Volumetric PD 1.27 (1.11–1.46) 11.84 5.80E-04 0.57 (0.53– 0.61)
  1. Total number of observations (N) = 1248, including 317 cases and 931 controls. Standardized odds ratio is the change in odds for a standard deviation (in controls) increase in predictors, adjusted for age and body mass index. Sum average 16, 32 and 64 are the texture feature sum average using images downsized by a factor of 16, 32 and 64.
  2. PD percent density, CI confidence interval, mC matched concordance index, SD standard deviation