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Table 6 Characteristics of Blastocystis sp. Diarrhea

From: A cross-sectional analysis of clinical presentations of and risk factors for enteric protozoan Infections in an Active Duty Population during Operation Iraqi Freedom

  Blastocystis Only Isolated n (27) No Protozoa Isolated n (362) p value
Diarrhea at study enrollment, n(%)    
Yes 6 (22.2) 98 (27.1)  
No 21 (77.8) 263 (72.9) 0.58
Fever at study enrollment, n(%)    
Yes 1 (3.7) 4 (1.1)  
No 26 (96.3) 356 (98.9) 0.25
Diarrhea on Prior Deployments   
Yes 4 (14.8) 131 (36.3)  
No 23 (85.1) 230 (63.7) 0.03
Had other diarrhea episodes during this deployment   
Yes 15 (55.6) 230 (63.5)  
No 12 (44.4) 132 (36.4) 0.41
Date of last diarrhea    
Less than 1 week ago 4 (25) 60 (26.4)  
1-2 weeks ago 7 (43.8) 65 (28.6)  
3-4 weeks ago 3 (18.8) 46 (20.2)  
>4 weeks ago 1 (6.2) 56 (24.7) 0.05
Characteristics of prior diarrhea episodes during this deployment   
Abdominal Cramps    
Yes 9 (60) 169 (73.5)  
No 6 (40) 61 (26.5) 0.25
Nausea    
Yes 10 (66.7) 101 (44.3)  
No 5 (33.3) 127 (55.7) 0.09
Vomiting    
Yes 1 (6.7) 38 (16.7)  
No 14 (93.3) 190 (83.3) 0.30
Headache    
Yes 9 (60) 102 (44.5)  
No 6 (40) 127 (55.50) 0.24
Muscle Aches    
Yes 6 (40) 72 (31.6)  
No 9 (60) 156 (68.4) 0.50
Joint Pain    
Yes 3 (20) 44 (19.4)  
No 12 (80) 183 (80.6) 0.95
Fevers 5 (33.3) 32 (14.1)  
Yes 10 (66.7) 195 (85.9) 0.06
No    
Blood in Stool    
Yes 2 (13.3) 17 (7.5)  
No 13 (86.7) 211 (92.5) 0.41
Visited Sick Call    
Yes 3 (18.8) 46 (20.4)  
No 13 (81.2) 180 (79.7) 0.88
Admitted?    
Yes 1 (6.2) 4 (1.8)  
No 15 (93.8) 221 (98.2) 0.23
Back Up Called    
Yes 3 (20) 8 (3.5)  
No 12 (80) 221 (96.5) 0.02
Off Base Travel Last 5 Days    
Yes 1 (6.7) 70 (30.4)  
No 14 (93.3) 160 (69.6) 0.07
Ate Off Base Last 5 Days    
Yes 2 (13.3) 37 (16.1)  
No 13 (86.7) 193 (83.9) 0.78
Ate On Base Local Last 5 Days    
Yes 6 (40) 85 (37.0)  
No 9 (60) 145 (63.0) 0.81