Table 1.
Prevalence of non-LEE genes in tEPEC and aEPEC strains from patients and controls.
| Non-LEE- genes | No. (%) of positive strainsa | No. (%) of strains: | |||||
|---|---|---|---|---|---|---|---|
| tEPECb | aEPECc | ||||||
|
|
|
||||||
| Patients | Controls | Total | Patients | Controls | Total | ||
| nleC | 84 (78.5) | 37 (97.4) | 6 (100.0) | 43 (97.7)e | 20 (60.6) | 21 (70.0) | 41 (65.0)e |
| espI/nleA | 61 (57.0) | 28 (73.4)d | 1 (16.7)d | 29 (65.9) | 15 (45.4) | 17 (56.7) | 32 (50.8) |
| cif | 52 (48.6) | 31 (81.6) | 3 (50.0) | 34 (77.3)f | 10 (30.3) | 8 (26.7) | 18 (28.6)f |
| nleB | 50 (46.7) | 25 (65.8) | 3 (50.0) | 28 (63.6)g | 12 (36.4) | 10 (33.3) | 22 (35.0)g |
| nleE | 45 (42.0) | 22 (57.9) | 3 (50.0) | 25 (56.8) | 10 (30.3) | 10 (33.3) | 20 (31.7) |
| nleD | 25 (23.4) | 8 (21.0) | 2 (33.3) | 10 (22.7) | 10 (30.3) | 5 (16.7) | 15 (23.8) |
a
Total of EPEC strains studied: 107 (44 typical and 63 atypical).
b
No. of tEPEC strains studied: 38 from patients and 6 from controls.
c
No. of aEPEC strains studied: 33 from patients and 30 from controls.
d
p value = 0.0130,
e
p value = 0.0001,
f
p value = 0.0001,
g
p value = 0.0056.