Table 2.

Parameter estimate from different models using UVI

		Coefficient	Standard Error	Wald 95% Confidence Limits		Wald Chi-Square	Pr > ChiSq	p value for model comparison
Model 1	Intercept	−12.312	0.0754	−12.4597	−12.164	26640.5	<.0001
	uvi	0.1673	0.0107	0.1463	0.1883	244.47	<.0001
	sex	−0.1383	0.0475	−0.2314	−0.0452	8.48	0.0036
	age	0.0631	0.0012	0.0607	0.0654	2724.68	<.0001
	LL*	−8854.7						NA
Model 2	Intercept	−12.1	0.0909	−12.2779	−11.922	17730.3	<.0001
	uvi	0.1222	0.0148	0.0931	0.1513	67.79	<.0001
	sex	−0.558	0.1103	−0.7741	−0.3418	25.59	<.0001
	age	0.063	0.0012	0.0606	0.0653	2753.02	<.0001
	uvi* sex	0.0892	0.0212	0.0477	0.1308	17.74	<.0001
	LL	−8844.1						< 0.0001
Model 3	Intercept	−11.945	0.1384	−12.2165	−11.674	7448.36	<.0001
	uvi	0.0898	0.0265	0.0377	0.1418	11.43	0.0007
	sex	−0.1398	0.0473	−0.2325	−0.0472	8.76	0.0031
	age	0.0549	0.0028	0.0494	0.0605	378.59	<.0001
	uvi* age	0.0017	0.0005	0.0007	0.0028	9.98	0.0016
	LL	−8848.7						0.0005
Model 4	Intercept	−11.761	0.0926	−11.9425	−11.58	16127.2	<.0001
	uvi	0.1662	0.0103	0.146	0.1863	261.08	<.0001
	sex	−1.1858	0.1131	−1.4076	−0.9641	109.84	<.0001
	age	0.0504	0.0016	0.0472	0.0537	937.02	<.0001
	age* sex	0.0232	0.0023	0.0187	0.0277	103	<.0001
	LL	−8795.6						< 0.0001
Model 5	Intercept	−11.313	0.1522	−11.6114	−11.015	5528.3	<.0001
	uvi	0.0689	0.0275	0.015	0.1227	6.29	0.0122
	sex	−1.5477	0.1481	−1.8381	−1.2574	109.15	<.0001
	age	0.0447	0.0029	0.0389	0.0504	231.08	<.0001
	uvi* sex	0.0808	0.0204	0.0409	0.1207	15.76	<.0001
	uvi* age	0.0013	0.0005	0.0002	0.0023	5.78	0.0163
	age* sex	0.0228	0.0023	0.0183	0.0272	100.78	<.0001
	LL	−8782.7						< 0.0001

^*LL, log likelihood value