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Table 4 The clinical presentation of Shigella flexneri and Shigella sonnei infections.

From: A changing picture of shigellosis in southern Vietnam: shifting species dominance, antimicrobial susceptibility and clinical presentation

 

S. flexneri

S. sonnei

pvaluea

Pateints

n = 123

n = 147

 

Age (months)d

25 (12 - 42)

23 (14 - 36)

0.105

Weight (kg)

11 (8.5 - 14)

10 (9.9 -13)

0.558

Male sex (%)

55 (44.7)

83 (56.5)

0.055

Patient history

   

Days

2 (2 - 3)

1 (1 - 2)

< 0.001

Fever (%)

117 (95)

141 (96)

0.761

Abdominal pain (%)

64 (52)

84 (57.1)

0.48

Vomitting (%)

60 (48.8)

74 (50.3)

0.78

Watery diarrhea (%)

78 (63.4)

86 (58.5)

0.41

Bloody/mucoid diarrhea (%)

97 (78.9)

117 (80)

0.88

Diarrhea episodes per day

10 (5 - 10)

8 (5 - 10)

0.051

Convulsions (%)

9 (7.3)

21 (14.3)

0.07

Known pretreatment (%)

7 (5.7)

7 (4.8)

0.585

Clinical details

   

White cell count (× 103/mm3)

10 (8 - 13.6)

12 (10.5 - 15.5)

0.029

Red cells in stoolb

1

1

0.056

White cells in stoolb

3

3

0.173

Mucoid duration (hrs)

36 (24 - 53.5)

25 (18 - 48)

0.054

Diarrhea duration (hrs)

48 (39 - 72)

48 (27 - 72)

0.088

Duration of illness

   

Hospital stay (days)

5 (4 - 5)

4 (3 - 5)

0.276

Disease duration (days)c

7 (6 - 8)

5 (4 - 7)

0.009

  1. a p Values calculated using either the Chi-square test or the Kruskal-Wallis test
  2. b Cells in Stool assessed as described in methods
  3. c Disease duration calculated by addition of history of disease and stay in hospital
  4. d Interquartile range values in brackets unless stated