Table 4.

Comparison of averted cases determined by test methods 1–3^*, by age group and season, 2010–11 to 2016–17.

Age	Season	Method 1 (currently used method)		Method 2		Method 3		Difference in averted cases compared with method 1, %
		No. of averted cases	Averted %	No. of averted cases	Averted %	No. of averted cases	Averted %	Method 2 vs. Method 1	Method 3 vs. Method 1
All	2010–11	5,039,277	20.0	5,593,760	21.7	5,588,717	21.7	11.0	10.9
	2011–12	1,981,571	18.2	2,179,701	19.7	2,179,404	19.7	10.0	10.0
	2012–13	5,628,332	14.0	5,838,328	14.5	5,831,551	14.5	3.7	3.6
	2013–14	6,683,929	19.5	7,199,195	20.6	7,192,944	20.6	7.7	7.6
	2014–15	1,607,848	4.6	1,560,287	4.5	1,559,520	4.5	−3.0	−3.0
	2015–16	5,083,498	17.2	5,645,614	18.8	5,642,695	18.8	11.1	11.0
	2016–17	5,288,312	14.8	5,713,451	15.8	5,709,538	15.8	8.0	8.0
	Median		17.2		18.8		18.8	8.0	8.0
6 m-4 y	2010–11	965,327	33.7	1,203,220	38.8	1,200,195	38.7	24.6	24.3
	2011–12	241,406	27.7	282,620	30.9	282,496	30.9	17.1	17.0
	2012–13	799,295	23.4	883,121	25.3	880,887	25.2	10.5	10.2
	2013–14	741,609	30.6	875,027	34.2	873,252	34.2	18.0	17.8
	2014–15	134,300	6.1	130,283	6.0	130,173	6.0	−3.0	−3.1
	2015–16	980,052	32.3	1,212,842	37.1	1,211,129	37.1	23.8	23.6
	2016–17	602,072	23.8	678,393	26.1	677,793	26.0	12.7	12.6
	Median		27.7		30.9		30.9	17.1	17.0
5–17 y	2010–11	1,350,617	23.0	1,500,044	24.9	1,498,908	24.9	11.1	11.0
	2011–12	490,865	20.0	540,115	21.6	540,075	21.6	10.0	10.0
	2012–13	1,506,488	18.1	1,595,647	19.0	1,593,335	19.0	5.9	5.8
	2013–14	1,081,574	21.9	1,179,996	23.4	1,179,153	23.4	9.1	9.0
	2014–15	356,330	5.0	345,777	4.8	345,565	4.8	−3.0	−3.0
	2015–16	1,281,134	24.3	1,454,669	26.7	1,454,025	26.7	13.5	13.5
	2016–17	1,920,214	23.8	2,165,577	26.1	2,163,846	26.0	12.8	12.7
	Median		21.9		23.4		23.4	10.0	10.0
18–49 y	2010–11	1,093,537	13.2	1,125,819	13.5	1,125,608	13.5	3.0	2.9
	2011–12	445,893	11.5	462,906	11.9	462,877	11.9	3.8	3.8
	2012–13	1,397,741	10.4	1,381,399	10.3	1,380,769	10.3	−1.2	−1.2
	2013–14	2,174,882	14.8	2,220,864	15.0	2,219,686	15.0	2.1	2.1
	2014–15	322,419	2.9	305,897	2.8	305,825	2.8	−5.1	−5.1
	2015–16	1,591,114	14.1	1,671,719	14.7	1,671,462	14.7	5.1	5.0
	2016–17	526,812	5.6	523,433	5.6	523,348	5.6	−0.6	−0.7
	Median		11.5		11.9		11.9	2.1	2.1
50–64 y	2010–11	1,169,470	19.7	1,261,901	20.9	1,261,355	20.9	7.9	7.9
	2011–12	488,982	20.5	537,764	22.1	537,698	22.1	10.0	10.0
	2012–13	1,631,408	15.7	1,687,342	16.2	1,685,819	16.2	3.4	3.3
	2013–14	2,213,864	21.6	2,400,974	23.0	2,398,707	23.0	8.5	8.3
	2014–15	355,391	4.2	344,114	4.1	343,946	4.1	−3.2	−3.2
	2015–16	743,725	9.6	765,353	9.9	765,189	9.9	2.9	2.9
	2016–17	1,635,009	15.6	1,723,831	16.3	1,722,608	16.3	5.4	5.4
	Median		15.7		16.3		16.3	5.4	5.4
≥65 y	2010–11	460,327	20.9	502,777	22.4	502,651	22.4	9.2	9.2
	2011–12	314,425	24.5	356,296	26.9	356,258	26.9	13.3	13.3
	2012–13	293,400	6.4	290,819	6.4	290,741	6.4	−0.9	−0.9
	2013–14	472,000	23.6	522,334	25.5	522,146	25.5	10.7	10.6
	2014–15	439,408	7.1	434,215	7.0	434,011	7.0	−1.2	−1.2
	2015–16	487,473	22.4	541,031	24.3	540,890	24.3	11.0	11.0
	2016–17	604,205	11.5	622,218	11.8	621,943	11.8	3.0	2.9
	Median		20.9		22.4		22.4	9.2	9.2

Abbreviations: m, months; y, years.

^*Methods 1–3 are defined in Supplemental Tables 1–2 and the Methods section of text.