Table 5. Optimum number of additional samples needed to detect COVID-19.

P/T	i	Population size	E	𝜆	Proportion(i)	Pr(i,t)	wp(i,t)	Z(t)	%P/T	Z(t) at p0 = 0.05%	% P/T at p0 = 0.05%
SK	L	1,181,666	7,982	0.99	0.112	0.111	11,420	4,867	0.41	307	0.26
	M			0.99	0.392	0.386	5,710
	H			0.99	0.494	0.490	2,855
MB	L	1,377,517	9,304	0.99	0.112	0.111	9,766	4,162	0.30	N/A	N/A
	M			0.99	0.392	0.386	4,883
	H			0.99	0.494	0.490	2,441
NB	L	779,993	5,268	0.99	0.112	0.111	14,812	6,312	0.81	1,753	0.23
	M			0.99	0.392	0.386	7,406
	H			0.99	0.494	0.490	3,703
NS	L	977,457	6,602	0.99	0.112	0.111	13,144	5,602	0.57	1,042	0.11
	M			0.99	0.392	0.386	6,572
	H			0.99	0.494	0.490	3,286
PE	L	158,158	1,068	0.99	0.112	0.111	20,063	8,550	5.41	3,991	2.52
	M			0.99	0.392	0.386	10,031
	H			0.99	0.494	0.490	5,016
NL	L	515,828	3,522	0.99	0.112	0.111	17,042	7,263	1.41	2,703	0.52
	M			0.99	0.392	0.386	8,521
	H			0.99	0.494	0.490	4,261
YK	L	41,078	277	0.99	0.112	0.111	21,051	8,972	21.8	4,412	10.7
	M			0.99	0.392	0.386	10,526
	H			0.99	0.494	0.490	5,263
NT	L	44,904	303	0.99	0.112	0.111	21,019	8,958	20.0	4,398	9.80
	M			0.99	0.392	0.386	10,509
	H			0.99	0.494	0.490	5,255
NV	L	39,097	264	0.99	0.112	0.111	21,068	8,979	23.0	4,419	11.3
	M			0.99	0.392	0.386	10,534
	H			0.99	0.494	0.490	5,267

Abbreviations: H, high; L, low; M, medium; MB, Manitoba; N/A; not applicable; NB, New Brunswick; NL, Newfoundland and Labrador; NS, Nova Scotia; NT, Northwest Territories; NV, Nunavut; PE, Prince Edward Island; P/T, province/territory; SK, Saskatchewan; YK, Yukon

Note: At p₀ when augmenting with volunteer samples from sample group i, Z(t), and the underlying values for the calculation, including λ, the probability of not being in the expected healthcare visits population, E. Also shown is the percentage of the provincial population that would need to participate in volunteer testing at temporal unit t