Table 1.

Demographic and clinical data of 276 enrolled children. Results expressed as numbers (and percentage) unless stated otherwise

	Cases n = 203	Controls n = 73	P
Males	101 (49.8)	33 (45.2)	0.50*
Age in months: median (IQR)	17 (8, 23)	11 (2, 26)	0.01†
Diarrhea	203 (100)	0 (0)	< 0.001*
Type
Bloody	7 (3.6)	0 (0)	NA
Watery	95 (48.5)	0 (0)	NA
Mucous	54 (27.5)	0 (0)	NA
Duration (hour)
1–96	153 (76.9)	0 (0)	NA
97–120	25 (12.6)	0 (0)	NA
≥ 121	21 (10.5)	0 (0)	NA
Frequency/24 h
1–3	34 (17.1)	0 (0)	NA
4–5	54 (27.1)	0 (0)	NA
≥ 6	111 (55.8)	0 (0)	NA
Vomiting	161 (80.9)	2 (2.8)	< 0.001*
Duration (hour)
1–24	58 (34.5)	0 (0)	NA
25–48	71 (42.2)	0 (0)	NA
≥ 49	39 (23.2)	0 (0)	NA
Frequency/24 h			0.2*
1	19 (11.4)	1 (33.3)
2–4	71 (42.8)	0 (0)
≥ 5	76 (45.8)	2 (66.7)
Fever	120 (60.3)	4 (5.5)	< 0.001*
Duration (hour)			0.008*
1–24	38 (28.8)	4 (80)
25–48	59 (44.7)	0 (90)
≥ 49	35 (26.5)	1 (20)
Max recorded fever (°C)			0.7*
37.1–38.4	71 (55.9)	2 (50)
38.5–38.9	42 (33.1)	2 (50)
≥ 39.0	14 (11.0)	0 90)
Abdominal pain	97 (49.5)	2 (2.7)	< 0.001*
Consumption of meal outside home	19 (9.5)	2 (3.3)	0.11
History of contact	61 (30.6)	3 (4.9)	< 0.001*
Travel abroad in previous 3 months	13 (6.5)	4 (6.5)	0.99

* Chi squared or Fisher exact test; ^† Kruskal Wallis test; IQR interquartile range; NA not applicable