Table 1

Outcomes of the four steps in derivation of incidence for 2019–1923

Age group	Cohort	Person years	Rate in Scenario A	Rate in Scenario B	Rate in Scenario C	Incidence Scenario A	Incidence Scenario B	Incidence Scenario C
10–14	2004–2013	1 454 400	5.44	3.14	10.04	79	46	146
15–19	1999–2008	1 551 140	54.48	31.45	100.61	845	488	1561
20–24	1994–2003	1 505 670	33.89	19.57	62.59	510	295	942
25–29	1989–1998	1 415 710	22.80	13.16	42.11	323	186	596
30–34	1984–1993	1 423 860	6.19	3.58	11.44	88	51	163
35–39	1979–1988	1 387 470	7.82	4.51	14.44	108	63	200
40–44	1974–1983	1 404 350	10.04	5.80	18.54	141	81	260
45–49	1969–1978	1 523 600	17.36	10.03	32.07	265	153	489
50–54	1964–1973	1 598 570	22.72	13.12	41.96	363	210	671
55–59	1959–1968	1 578 130	28.30	16.34	52.27	447	258	825
60–64	1954–1963	1 444 420	18.49	10.67	34.14	267	154	493
65–69	1949–1958	1 203 370	13.26	7.66	24.49	160	92	295
Total		17 490 690				3596	2076	6641