TABLE 6.

Points total and predicted likelihood of an individual dog having Cushing's syndrome using demographic, clinical sign, and laboratory predictive factors, developed in dogs attending primary‐care veterinary practices in the United Kingdom (cases, n = 398; noncases: n = 541)

Points total	Predicted likelihood of Cushing's syndrome (0.00 = 0%; 0.96 = 96%)
−13	0.00
−12	0.01
−11	0.01
−10	0.01
−9	0.02
−8	0.03
−7	0.04
−6	0.05
−5	0.08
−4	0.11
−3	0.15
−2	0.20
−1	0.27
0	0.35
1	0.44
2	0.53
3	0.63
4	0.71
5	0.78
6	0.84
7	0.88
8	0.92
9	0.94
10	0.96

Note: The linear predictor (LP_i) using the rounded points total was estimated: LP_i = β + B(Points total) (β: optimism‐adjusted intercept [constant]; B: common factor). Then the predicted likelihood from the inverse logit transformation of the linear predictor was calculated: $\widehat{p}=\frac{e^{{\mathrm{LP}}_i}}{1+e^{{\mathrm{LP}}_i}}$.