Table 2.
Demographic and clinical characteristics of patients with Shiga toxin-producing E. coli
| Variable | Resulta for patients with: |
P value (Fisher's exact test) | |
|---|---|---|---|
| O157:H7 STEC (n = 33) | Non-O157:H7 STEC (n = 17) | ||
| Sex (% male) | 48.5 | 35.2 | 0.55 |
| Mean age, yr (range) | 8.3 (0.4–18) | 8.8 (0.6–18) | 0.79b |
| Blood in stool (no. of patients) | 26/31 (83.9) | 13/16 (81.3) | 1.00 |
| Fever (no. of patients) | 14/31 (45.2) | 5/16 (31.3) | 0.53 |
| Admission (no. of patients) | 24/33 (72.3) | 10/17 (58.8) | 0.35 |
| Mean duration, days (range) | 5.4 (0–29) | 1.6 (0–9) | 0.06c |
| ICU admission (no. of patients) | 2/24 (8.3) | 0/10 (0.0) | 1.00 |
| Hemolytic-uremic syndrome (no. of patients) | 7/33 (21.2) | 3/17 (17.7) | 1.00 |
a
Results expressed as number of patients indicate the number of patients with the given characteristic over the total number of patients for whom that characteristic was evaluated.
b
t test with equal variances.
c
t test with unequal variances.