Comparison of rectal swabs and faeces for real-time PCR detection of enteric agents in Rwandan children with gastroenteritis

Table 3 Sensitivities and agreements of PCR detection between faeces and rectal swabs

	Reactive in faeces or rectal swab	Reactive in faeces	Faeces sensitivity^a	Reactive in rectal swab	Rectal swab sensitivity^b	Reactive in faeces *and*rectal swab	Discordant samples^c	Kappa value
ETEC-eltB	147	134	91%	110	75%	97	50	0.674
ETEC-estA	56	46	82%	47	84%	37	19	0.762
E. coli bfpA	61	53	87%	46	75%	38	23	0.726
E. coli eae	91	72	79%	75	82%	56	35	0.692
Shigella ipaH	77	66	86%	65	84%	54	23	0.780
Campylobacter	76	68	89%	65	86%	57	19	0.821
Cryptosporidium	31	25	81%	28	90%	22	9	0.815
Rotavirus	60	48	80%	49	82%	37	23	0.721
Norovirus GG2	27	23	85%	21	78%	17	10	0.756
Adenovirus	122	85	73%	95	84%	65	53	0.452

ISSN: 1471-2334