Table 3.

Five-year relative survival and adjusted hazard ratios for invasive melanomas among adolescents and young adults (15–24 years old at diagnosis) by sex, age group and tumour thickness at diagnosis in Queensland, 2006–2010

		Five-year relative survival2		Adjusted hazard ratio
Characteristic	N1	%	(95% CI)	HR3	(95% CI)	p-Value
Total	674	95.7	(92.9–97.5)
Sex
Females	381	96.9	(93.0–98.6)	1.004		0.3075
Males	293	94.2	(89.0–97.1)	1.76	(0.59–5.23)	0.307
Age group
15–19	201	97.2	(91.2–99.2)	1.004		0.4095
20–24	473	95.1	(91.4–97.3)	1.73	(0.47–6.37)	0.409
Tumour thickness at diagnosis3
≤1 mm	528	97.9	(95.1–99.2)	1.004		0.0105
>1 mm	111	89.0	(78.2–94.7)	5.53	(1.72–17.80)	0.004
Unknown	35	87.3	(57.6–96.8)	5.96	(1.11–31.90)	0.037

The number of persons who were eligible to contribute to the survival calculations

Survival calculated using the period method for persons who were at risk of mortality due to invasive melanoma between January 1, 2006 and December 31, 2010

Hazard ratios are for mortality within 5 years of diagnosis and are adjusted for all the other characteristics in the table

Reference group

p-Value corresponding to the overall effect for that variable.

Abbreviations: N: number; CI: confidence interval; HR: hazard ratio.