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Table 1 Isolation of pathogens (DEC strains by multiplex PCR) from the stools of children with diarrhea (cases) and children without diarrhea (controls)

From: Genotypic and phenotypic analysis of diarrheagenic Escherichia coli strains isolated from Brazilian children living in low socioeconomic level communities

Pathogen

Children aged <2 years

Children aged 2−5 years

Children aged 6−10 years

 

Cases

Controls

Cases

Controls

Cases

Controls

Total no. of children

 

(n= 40)

(n= 110)

(n= 53)

(n= 163)

(n= 48)

(n= 146)

(n= 560)

Diarrheagenic E. coli

       

aEPEC

7 (17.5)

13 (11.9)

5 (9.4)

13 (7.9)

4 (8.3)

7 (4.8)

49 (8.7)

tEPEC

1 (2.5)

0

0

0

2 (4.2)

0

3 (0.5)

EAEC

20 (50)

25 (22.7)

12 (22.6)

33 (20.2)

4 (8.3)

23 (15.7)

117 (20.9)

DAEC

5 (12.5)

10 (9.1)

15 (28.3)

18 (11.0)a

6 (12.5)

11 (7.5)

65 (11.6)

LT-ETEC

2 (5.0)

1 (0.9)

3 (5.7)

2 (1.2)

1 (2.1)

4 (2.7)

13 (2.3)

LT/ST-ETEC

0

0

1 (1.9)

0

1 (2.1)

0

2 (0.4)

EIEC

0

0

2 (3.8)

0

0

1 (0.7)

3 (0.5)

STEC

0

0

0

1 (0.6)

0

0

1 (0.2)

  All

35 (87.5)

49 (44.5)b

38 (71.7)

67 (41.1)c

18 (37.5)

46 (31.5)

253 (45.2)

Shigella spp.

1 (2.5)

0

2 (1.4)

1 (0.6)

0

0

4 (0.7)

Salmonella spp.

0

1 (0.9)

0

0

0

1 (0.7)

1 (0.2)

Giardia lamblia

6 (15)

5 (4.5)

3 (5.7)

8 (4.9)

1 (2.1)

0

23 (4.1)

Entamoeba histolytica

0

0

1 (1.9)

3 (1.8)

1 (2.1)

0

5 (0.9)

  1. ap = 0.0041; bp = 0.0001; cp = 0.0001, for the comparison between diarrhea and control samples.