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. Author manuscript; available in PMC: 2019 Jul 1.
Published in final edited form as: Appl Ergon. 2018 Mar 20;70:118–126. doi: 10.1016/j.apergo.2018.02.017

Table 6.

Testing parameter sets sorted based on the Wald statistic, and sensitivity (specificity) and AUC (95% confidence interval: CI) from ROC curves of the logistic regression models with ACOF-RCOF as the predictor (including beta values). Sensitivity and specificity were taken from the point of the ROC curve where the line most deviated from a line with slope of 1. Odds ratio (95% confidence interval: CI) were calculated for 0.01 increase in ACOF-RCOF.

Testing parameter set Intercept β0 ACOF-RCOF β1 Wald p-value (Wald) AUC (CI) Sensitivity (Specificity) Odds ratio (CI)

250 N, 17°, 0.5 m/s −4.76 −35.46 20.40 <0.001 0.815 (0.726–0.880) 66.7 (84.8) 0.70 (0.60–0.82)
250 N, 17°, 0.3 m/s −3.74 −30.12 19.59 <0.001 0.806 (0.713–0.875) 66.7 (86.1) 0.74 (0.65–0.85)
250 N, 7°, 0.5 m/s −3.34 −28.43 18.40 <0.001 0.804 (0.707–0.874) 62.2 (92.4) 0.75 (0.66–0.86)
400 N, 17°, 0.5 m/s −3.88 −29.29 18.05 <0.001 0.797 (0.700–0.868) 73.3 (77.2) 0.75 (0.65–0.85)
400 N, 7°, 0.5 m/s −2.88 −24.44 17.48 <0.001 0.791 (0.693–0.864) 57.8 (92.4) 0.78 (0.70–0.88)
400 N, 17°, 0.3 m/s −2.93 −22.78 16.31 <0.001 0.787 (0.685–0.863) 73.3 (79.8) 0.80 (0.71–0.89)
400 N, 7°, 0.3 m/s −2.20 −18.88 15.86 <0.001 0.774 (0.674–0.850) 57.8 (88.6) 0.83 (0.75–0.91)
250 N, 7°, 0.3 m/s −2.24 −20.43 14.54 <0.001 0.776 (0.670–0.855) 55.6 (96.2) 0.82 (0.73–0.91)