TABLE 3 

Prevalence of ST131 subclones in relation to source population among 261 recent clinical isolates of Escherichia coli ST131 from the United States and Germany

Source populationTotal no. of ST131 isolatesST131 subclones, no. (%)
Non-H30
(n = 87)
H30 (n = 174)
Non-H30-R (n = 11)H30-R (n = 165)
Non-H30-Rx
(n = 119)
H30-Rx
(n = 44)
United States ambulatory8635 (41)3 (4)42 (49)6 (7)a,b
United States hospital12032 (27)4 (3)64 (53)20 (17)a,c
German hospital5520 (36)4 (7)13 (24)18 (33)b,c
  • a For prevalence of H30-Rx, United States ambulatory compared to United States hospital isolates, P = 0.054 (FET).

  • b For prevalence of H30-Rx, United States ambulatory compared to German hospital isolates, P < 0.001 (FET).

  • c For prevalence of H30-Rx, United States hospital compared to German hospital isolates, P = 0.03 (FET).