BMC Cancer

Table 2 Incidence rate ratios (IRR) and 95% confidence intervals (CI) for leukaemia, lymphoma and CNS tumours in teenagers and young adults, 1996–2005

From: Population mixing for leukaemia, lymphoma and CNS tumours in teenagers and young adults in England, 1996–2005

		Leukaemia			Lymphoma			CNS Tumours^b
Model^a	Variables	IRR	95% CI	P-value	IRR	95% CI	P-value	IRR	95% CI	P-value
A	Population Mixing	0.92	0.83-1.03	0.144	0.94	0.87-1.01	0.086	0.81	0.74-0.89	<0.001
B	Population Mixing	0.93	0.83-1.04	0.222	0.97	0.90-1.04	0.426	0.83	0.75-0.91	<0.001
	Deprivation Score	0.99	0.98-1.00	0.114	0.97	0.96-0.98	<0.001	0.97	0.96-0.99	<0.001
C	Population Mixing	0.95	0.84-1.07	0.446	0.97	0.90-1.06	0.529	0.82	0.74-0.91	<0.001
	Deprivation Score	0.99	0.98-1.01	0.609	0.97	0.96-0.98	<0.001	0.97	0.95-0.99	0.001
	Population Density^c	1.00	0.99-1.00	0.433	1.00	1.00-1.00	0.820	1.00	0.99-1.00	0.675
D	Population Mixing
	1st Decile	0.93	0.73-1.19	0.572	0.97	0.83-1.14	0.689	1.35	1.13-1.61	0.001
	2-9^th Decile	1	-	-	1	-	-	1	-	-
	10^th Decile	0.9	0.77-1.05	0.168	0.98	0.89-1.09	0.718	0.93	0.81-1.06	0.267
	Test for Trend			0.203			0.778			0.075
	Deprivation Score	0.99	0.98-0.99	0.163	0.97	0.96-0.98	<0.001	0.97	0.96-0.98	<0.001

^aBest fitting model is highlighted in bold for each diagnostic group, model fit statistics are given in Table 4.
^bAnalysis for main CNS tumour subgroups are shown in Table 3.
^cPerson-weighted population density.

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