TABLE 2.

Logistic regression parameter estimates (Model 2)

Covariate	Comparison	Parameter estimate	SE	p	OR estimate	Recalibrated parameter estimate
Intercept		−9.1747	0.5007	<.0001	.	−9.0920
Age at diagnosis	Continuous	0.0664	0.00676	<.0001	1.069	0.0655
Sex	Male vs. female (ref)	0.4843	0.1720	0.0049	1.623	0.4780
Clark level	Other vs. Clark level II (ref)	0.5691	0.1945	0.0034	1.767	0.5616
Ulceration	Ulceration present vs. ulceration not identified/not present (ref)	1.4333	0.2187	<.0001	4.193	1.4144
Mitogenicity	Mitogenic vs. nonmitogenic (ref)	0.9708	0.1709	<.0001	2.640	0.9579

Note: Recalibrated parameter estimates were calculated using the estimated recalibration slope (0.9868) and recalibration intercept (−0.0384). Abbreviations: OR, odds ratio; SE, standard error.