Table 2. Statistical analyses of HRT⁺ and HRT⁻ cases.

	HRT+	HRT−
Number of cases	83	123
Alive and disease free	80	93
Alive with disease	2	4
Died of melanoma	1	22
Died of other causes	0	4
Cox regression	HR (95% CI)	HR	P-value
Unadjusted	0.167 (0.050, 0.555)	1	0.004
Adjusted for ulceration	0.189 (0.057, 0.634)	1	0.007
Adjusted for ulceration and primary tumour thickness	0.136 (0.039, 0.480)	1	0.002
Adjusted for ulceration, primary tumour thickness and age	0.173 (0.048, 0.621)	1	0.007

HR=hazard ratio.