First description of seasonality of birth and diagnosis amongst teenagers and young adults with cancer aged 15–24 years in England, 1996–2005

Table 1 Incidence rates and temporal trends for 15–24 year olds diagnosed with cancer in England, 1996-2005

		Incidence rates²		Temporal trends
Diagnostic group¹	Cases ( N)	Rate	(95% CI)	AAPC	P-value
Leukaemia	1299	17	(16–19)	0.12%	0.901
ALL	591	6	(6–7)	1.20%	0.401
AML	463	7	(6–8)	−1.47%	0.357
CML	147	2	(1–2)	4.98%	0.091
Other Leukaemia	98	1	(1–2)	−5.71%	0.095
Lymphoma	3070	45	(43–48)	1.17%	0.063
Hodgkin Lymphoma	2079	33	(31–35)	1.96%	0.078
Non-Hodgkin Lymphoma	991	12	(11–13)	0.79%	0.297
CNS Tumours	1882	29	(27–31)	0.37%	0.644
Astrocytoma	629	9	(8–10)	−0.58%	0.674
Other Gliomas	195	3	(2–3)	2.23%	0.374
Ependymoma	99	2	(1–2)	3.53%	0.321
Medulloblastoma	111	2	(1–2)	−2.68%	0.406
Other CNS	702	12	(11–14)	−0.50%	0.702
Unspecified CNS		2	(2–3)	6.82%	0.023
Leukaemia, Lymphoma, CNS tumours	6251	92	(89–96)	0.71%	0.106

¹ Based on the classification scheme for tumours diagnosed in adolescents and young adults [12].
²Sex-adjusted rate per 1,000,000 per year.
CI: Confidence interval, AAPC: Average annual percentage change.

ISSN: 1471-2407