Table 2

Comparison of participants* from the US and Afghanistan study sites with gram-negative bacteria
US (n=101) Afghanistan (n=100) P value
Age (median, IQR) 22 (20,25) 23 (22,25.8) 0.07
Gender- males 69 100 <0.01
Total colonized 85 84 0.98
 Nares 4 12 0.04
 Oropharynx 14 8 0.26
 Axilla 11 13 0.65
 Groin 9 23 <0.01
 Hand 7 12 0.22
 Foot 27 13 0.15
 Perirectal 66 70 0.48
Total multidrug resistant (MDR) colonized 2 11 0.01
 Groin 0 4 0.12
 Foot 0 1 0.50
 Perirectal 2 9 0.03
All bacteria
Acinetobacter baumannii-calcoaceticus complex 8 4 0.24
Acinetobacter lwoffii 8 13 0.24
Citrobacter species 11 5 0.19
Enterobacter aerogenes 5 9 0.28
Enterobacter cloacae 6 3 0.50
Escherichia coli 51 67 0.02
Klebsiella pneumoniae 12 20 0.12
Pseudomonas aeruginosa 5 2 0.45
Serratia marcescens 9 1 0.02
Stenotrophomonas maltophilia 5 0 0.06
Total sites colonized 0.44
 0 16 16
 1 48 36
 2 24 31
 3 10 15
 4 3 2
Total gram-negative rod bacteria isolates 0.62
 0 16 16
 1 32 24
 2 23 22
 3 17 21
 4 7 10
 5 4 5
 6 0 1
 7 2 0
 10 0 1

*Participants can be colonized with multiple bacteria or clones of bacteria.

Vento et al.

Vento et al. BMC Infectious Diseases 2013 13:68   doi:10.1186/1471-2334-13-68

Open Data