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. 2022 Dec 24;8(12):e12570. doi: 10.1016/j.heliyon.2022.e12570

Table 3.

Tabular results from chemotherapy and small molecule inhibitor dose response studies.

Cisplatin Gemcitabine Combo Afatinib Abemaciclib AZD4547
Best-fit values
β0 1.3 1.9 2 2 1.6 1.6
β1 −0.0043 −0.0033 −0.0062 2.6 −0.00094 2.2
X at 50% 295 587 329 −0.76 1745 −0.73
Std. Error
β0 0.25 0.49 0.77 0.8 0.56 0.67
β1 0.00097 0.001 0.0021 4.7 0.0011 3.1
X at 50% 63 149 106 1.5 1690 1.2
95% CI (profile likelihood)
β0 0.80 to 1.8 1.0 to 3.0 0.74 to 3.9 0.63 to 4.0 0.63 to 2.9 0.39 to 3.1
β1 −0.0066 to −0.0026 −0.0055 to −0.0014 −0.011 to −0.0029 −2.1 to 29 −0.0030 to 0.0013 −1.6 to 17
X at 50% 191 to 445 353 to 1092 145 to 569 ??? to −0.037 612 to ??? ??? to −0.044
Odds ratios
β0 3.5 6.7 7.7 7.5 5.1 4.9
β1 1 1 0.99 14 1 8.8
95% CI (profile likelihood) for odds ratios
β0 2.2 to 5.8 2.8 to 20 2.1 to 51 1.9 to 53 1.9 to 18 1.5 to 23
β1 0.99 to 1.0 0.99 to 1.0 0.99 to 1.0 0.13 to 2539493970211 1.0 to 1.0 0.20 to 17869430
Is slope significantly non-zero?
|Z| 4.4 3.1 3 0.57 0.89 0.7
P value <0.0001 0.0018 0.0027 0.5719 0.3732 0.4822
Deviation from zero? Significant Significant Significant NS NS NS
Likelihood ratio test
Log-likelihood ratio (G squared) 49 26 19 0.72 0.75 0.9
P value <0.0001 <0.0001 <0.0001 0.3967 0.3853 0.3438
Reject Null Hypothesis? Yes Yes Yes No No No
P value summary ∗∗∗∗ ∗∗∗∗ ∗∗∗∗ ns ns ns
Area under the ROC curve
Area 0.75 0.82 0.87 0.52 0.58 0.58
Std. Error 0.046 0.071 0.081 0.14 0.14 0.12
95% confidence interval 0.66 to 0.84 0.68 to 0.96 0.71 to 1.0 0.25 to 0.79 0.31 to 0.85 0.34 to 0.81
P value <0.0001 0.0001 0.0012 0.9131 0.5338 0.6812
Goodness of Fit
Tjur's R squared 0.33 0.44 0.61 0.019 0.028 0.023
Cox-Snell's R squared 0.31 0.38 0.51 0.031 0.025 0.038
Model deviance, G squared 134 44 18 13 29 17
Equation log odds = 1.3–0.0043∗X log odds = 1.9–0.0033∗X log odds = 2.0–0.0062∗X log odds = 2.0 + 2.6∗X log odds = 1.6–0.00094∗X log odds = 1.6 + 2.2∗X
Data summary
Rows in table 135 54 27 23 30 23
Rows skipped (missing data) 0 0 0 0 0 0
Rows analyzed (#observations) 135 54 27 23 30 23
Number of 1 79 35 15 21 24 20
Number of 0 56 19 12 2 6 3
Number of parameter estimates 2 2 2 2 2 2
#observations/#parameters 67.5 27 13.5 11.5 15 11.5
# of 1/#parameters 39.5 17.5 7.5 10.5 12 10
# of 0/#parameters 28 9.5 6 1 3 1.5