Table 1.

Porcine epidemic diarrhea virus (PEDV) whole virus (WV) ELISA sensitivity (Se) and specificity (Sp) by specimen type, antibody isotype, and sample-to-positive (S/P) ratio^a

Oral fluid - PEDV WV IgG ELISA			Oral fluid - PEDV WV IgA ELISA
S/P	Se (95 % CI)	Sp (95 % CI)	S/P	Se (95 % CI)	Sp (95 % CI)
0.30	1.00 (0.92, 1.00)	0.86 (0.84, 0.89)	0.30	1.00 (0.92, 1.00)	0.88 (0.86, 0.90)
0.40	1.00 (0.92, 1.00)	0.90 (0.88, 0.92)	0.40	1.00 (0.92, 1.00)	0.96 (0.94, 0.97)
0.50	0.98 (0.87, 1.00)	0.93 (0.91, 0.94)	0.50	1.00 (0.92, 1.00)	0.98 (0.97, 0.99)
0.60	0.88 (0.74, 0.96)	0.95 (0.93, 0.96)	0.60	1.00 (0.92, 1.00)	0.99 (0.99, 1.00)
0.70	0.71 (0.55, 0.84)	0.96 (0.95, 0.97)	0.70	1.00 (0.92, 1.00)	1.00 (0.99, 1.00)
0.80	0.69 (0.53, 0.82)	0.97 (0.96, 0.98)	0.80	1.00 (0.92, 1.00)	1.00 (0.99, 1.00)
Serum - PEDV WV IgG ELISA			Serum - PEDV WV IgA ELISA
S/P	Se (95 % CI)	Sp (95 % CI)	S/P	Se (95 % CI)	Sp (95 % CI)
0.30	1.00 (0.98, 1.00)	0.95 (0.93, 0.96)	0.30	0.93 (0.88, 0.96)	1.00 (0.99, 1.00)
0.40	0.99 (0.96, 1.00)	0.98 (0.97, 0.99)	0.40	0.90 (0.86, 0.94)	1.00 (0.99, 1.00)
0.50	0.97 (0.93, 0.99)	0.99 (0.98, 1.00)	0.50	0.82 (0.76, 0.87)	1.00 (0.99, 1.00)
0.60	0.95 (0.91, 0.86)	0.99 (0.98, 1.00)	0.60	0.73 (0.67, 0.79)	1.00 (0.99, 1.00)
0.70	0.91 (0.86, 0.94)	0.99 (0.98, 1.00)	0.70	0.66 (0.59, 0.72)	1.00 (0.99, 1.00)
0.80	0.87 (0.82, 0.91)	0.99 (0.98, 1.00)	0.80	0.58 (0.51, 0.65)	1.00 (0.99, 1.00)

^a $\mathrm{S}/\mathrm{P}=\frac{\left(\mathrm{sample}\mathrm{O}\mathrm{D}–\mathrm{negative}\mathrm{control}\mathrm{mean}\mathrm{O}\mathrm{D}\right)}{\left(\mathrm{positive}\mathrm{control}\mathrm{mean}\mathrm{O}\mathrm{D}–\mathrm{negative}\mathrm{control}\mathrm{mean}\mathrm{O}\mathrm{D}\right)}$