Table 1.

2 by 2 comparison results for primary and repeat testing

Medium and analytea	nb	No. of specimens with each result				Total no. with a positive result	No. matched	% agreement	95% CIc
		Pos/Pos	Pos/Neg	Neg/Pos	Neg/Neg
PreservCyt
HPV16	45	7	0	1	37	8	7	87.50	47.35, 99.68
HPV18	45	1	0	0	44	1	1	100.00	5.00, 100.00
HPV31	45	4	0	0	41	4	4	100.00	47.29, 100.00
HPV39_68_35	45	9	1	1	34	11	9	81.82	48.22, 97.72
HPV45	45	1	0	0	44	1	1	100.00	5.00, 100.00
HPV51	45	5	0	0	40	5	5	100.00	54.93, 100.00
HPV52	45	10	1	0	34	11	10	90.91	58.72, 99.77
HPV59_56_66_33_58	45	17	1	1	26	19	17	89.47	66.86, 98.70
G1.HBB	45	45	0	0	0	45	45	100.00	93.56, 100.00
G2.HBB	45	45	0	0	0	45	45	100.00	93.56, 100.00
G3.HBB	45	45	0	0	0	45	45	100.00	93.56, 100.00
HPV total	360	54	3	3	300	60	54	90.00	79.49, 96.24
HBB total	135	135	0	0	0	135	135	100.00	97.81, 100.00
Grand total	495	189	3	3	300	195	189	96.92	93.42, 98.86
SurePath
HPV16	44	8	2	0	34	10	8	80.00	44.39, 97.48
HPV18	44	2	0	0	42	2	2	100.00	22.36, 100.00
HPV31	44	4	0	0	40	4	4	100.00	47.29, 100.00
HPV39_68_35	44	9	0	0	35	9	9	100.00	71.69, 100.00
HPV45	44	3	1	0	40	4	3	75.00	19.41, 99.37
HPV51	44	2	1	1	40	4	2	50.00	6.76, 93.24
HPV52	44	4	3	1	36	8	4	50.00	15.70, 84.30
HPV59_56_66_33_58	44	12	1	2	29	15	12	80.00	51.91, 95.67
G1.HBB	44	44	0	0	0	44	44	100.00	93.42, 100.00
G2.HBB	44	44	0	0	0	44	44	100.00	93.42, 100.00
G3.HBB	44	44	0	0	0	44	44	100.00	93.42, 100.00
HPV total	352	44	8	4	296	56	44	78.57	65.56, 88.41
HBB total	132	132	0	0	0	132	132	100.00	97.76, 100.00
Grand total	484	176	8	4	296	188	176	93.62	89.12, 96.66

^aHBB, human beta-globin internal control, detected in each of the three assay wells, G1 to G3.

^bNumber of analytes tested in primary and repeat tests.

^c95% CI, 95% confidence interval.