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Table 2 Overview of results. Demographic data and frequency of norovirus (NV) infection in recently returned travelers with diarrhea and in a control group of recently returned travelers without diarrhea:

From: The Prevalence of Norovirus in returning international travelers with diarrhea

  Patients with diarrhea
(n = 57)
Asymptomatic patients
(n = 47)
Differences between groups
Male 29 26 p = 0.652
Mean age (yrs) 38.7 ± 15.7 36.6 ± 13.4 p = 0.437
Mean duration of journey (days) 68.5 ± 166 71.2 ± 266 p = 0.949
NV infection 9 (15.7%) 1 (2.1%) p = 0.019
GGI 1 0  
GGII 7 1  
GGI + GGII coinfection 1 0  
Traveling modality and corresponding odds of infection Backpacking trip: OR = 4.923
Business trip: OR = 1.429
Packaged holiday: OR = 0.304
  
Time until presentation at clinic after return (in days) 4.7 ± 3.0 5.3 ± 3.5 p = 0.330
India (total/NV+) 13/4 8/1  
Backpacker (total/NV+) 22/6 6/0