Table 2

Comparison of antibiotic exposure among volunteers and villagers in 2001, 2006, and 2010

Antibiotic name or classAntimicrobial exposure by population group (no. of treatments/subject/yr)
VillagersVolunteers
2001 (n = 388)a2006 (n = 512)2010 (n = 552)2006 (n = 151)2010 (n = 151)
Penicillin0.190.580.430.400.31
Cephalosporin00.040.030.030.01
Macrolide0.090.130.090.150.12
Metronidazole0.290.220.090.230.17
Ofloxacin00.010.010.030.03
Otherb0.080.100.020.090.02
Totalc0.641.090.670.890.65
  • a n, number of subjects.

  • b Nitroxoline, doxycycline, and cotrimoxazole.

  • c For the total of each group, P values were <0.001 (chi-square test) for the villagers and 0.06 (Student t test for paired data) for the volunteers.