Ulcerative Colitis and Its Association with Salmonella Species

Table 2

Positivity for Salmonella Typhi and Paratyphi A by Widal test, Vi antibody, and nested PCR methods in the study population.

(a)

	Number of study subjects	Nested PCR		Vi positivity		Widal titre
Study groups		Positivity		(titre ≥ 1 : 160)		TO		TH		AH
		No.	%	No.	%	No.	%	No.	%	No.	%
Ulcerative colitis (UC)	59	47	79.7	4	6.8	11	18.6	23	39.0	2	3.4
Irritable bowel syndrome (IBS)	127	84	66.1	14	11.0	12	12.6	86	67.7	2	1.6
Colon cancer (CC)	28	15	53.6	3	10.7	10	35.5	16	57.1	1	3.6
Apparently healthy controls (HC)	190	31	16.3	23	12.1	29	15.3	24	12.6	2	2.1

(b)

Nested PCR
UC	Vs	IBS
UC	Vs	CC
UC	Vs	HC
IBS	Vs	CC
IBS	Vs	HC
CC	Vs	HC
ViAb
UC	Vs	IBS
UC	Vs	CC
UC	Vs	HC
IBS	Vs	CC
IBS	Vs	HC
CC	Vs	HC
Widal
TO
UC	Vs	IBS
UC	Vs	CC
UC	Vs	HC
IBS	Vs	CC
IBS	Vs	HC
CC	Vs	HC
TH
UC	Vs	IBS
UC	Vs	CC
UC	Vs	HC
IBS	Vs	CC
IBS	Vs	HC
CC	Vs	HC
AH
UC	Vs	IBS
UC	Vs	CC
UC	Vs	HC
IBS	Vs	CC
IBS	Vs	HC
CC	Vs	HC