Table 2

Comparison of proportionate morbidity per 1,000 ill returned travelers seen at GeoSentinel clinics by syndrome and diagnostic groupings, A) expatriate versus nonexpatriate; B) business and volunteer expatriates versus business and volunteer non-expatriates, March 1997 – May 2011
  ALL Business travelers   Volunteer travelers
Expatriate Non-expatriate p-value (bivariate) Expatriate Non-expatriate p-value (bivariate) Expatriate Non-expatriate p-value (bivariate)
PM per 1,000 PM per 1,000 PM per 1,000
Acute Diarrhea 136 233 <0.01 131 231 <0.01 139 236 <0.01
Febrile/Systemic Illness 195 201 0.46 265 212 <0.01 147 183 <0.01
Dermatologic 88 121 <0.01 103 115 0.22 79 130 <0.01
GI, Other 121 74 <0.01 112 71 <0.01 127 79 <0.01
Respiratory 49 86 <0.01 75 102 <0.01 31 59 <0.01
Vector-borne
Malaria 84 62 <0.01 109 62 <0.01 67 61 0.37
Dengue 21 23 0.44 31 22 0.05 13 25 <0.01
Leishmaniasis 5 5 0.73 2 4 0.42 8 6 0.60
Rickettsiosis 3 4 0.56 6 5 0.64 1 2 0.41
Filariasis 14 4 <0.01 3 2 0.48 21 6 <0.01
Ingestion
Typhoid & Paratyphoid 4 5 0.83 6 3 0.18 3 6 0.17
Hepatitis A 3 2 0.35 7 3 0.03 0.6 2 0.69
Hepatitis E 3 0.4 <0.01 3 0.5 0.06 4 0.2 <0.01
GI disease (parasitic) 15 13 0.28 18 11 0.05 14 16 0.64
GI disease (bacterial) 11 27 <0.01 14 30 <0.01 9 23 <0.01
Amebiasis 32 17 <0.01 19 16 0.32 41 19 <0.01
Giardiasis 26 32 0.10 24 28 0.36 28 39 0.05
Brucellosis 2 0.4 <0.01 0.8 0.5 0.52 4 0.2 <0.01
Respiratory Contact
Influenza 7 17 <0.01 13 23 0.03 3 9 0.01
Latent TB 19 8 <0.01 26 9 <0.01 14 5 <0.01
Active TB 4 2 0.02 6 2 0.03 3 1 0.07
Blood/Body Fluid/Sexual
HIV 7 2 <0.01 13 3 <0.01 2 1 0.27
Hepatitis B 1 1 0.91 0.8 1 1.00 0.6 0 0.27
IMS1 – EBV2/CMV3 16 7 <0.01 8 8 0.89 22 5 <0.01
Environmental Contact
Schistosomiasis 15 9 <0.01 10 5 0.02 19 15 0.26
Strongyloidiasis 14 5 <0.01 7 3 0.03 19 9 <0.01
Ectoparasites 4 9 <0.01 5 7 0.42 4 12 <0.01
Animal Bites 3 3 0.99 6 2 0.03 0.6 4 0.05
Non-infectious
Fracture & Dislocation 1 0.4 0.20 0.8 0.3 0.33 1 0.7 0.62
Depression 8 3 <0.01 9 2 <0.01 7 5 0.24
Anxiety & Stress 7 3 <0.01 3 4 1.00 10 3 <0.01
Cardiac Disease 2 1 0.04 4 1 0.02 0.6 0.2 0.47

1IMS=infectious mononucleosis, 2EBV=Epstein-Barr virus; 3CMV=Cytomegalovirus.

Lim et al.

Lim et al. BMC Infectious Diseases 2012 12:386   doi:10.1186/1471-2334-12-386

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