TABLE 4

Frequency of Resistance to Tested Antibiotics

No. Susceptible/Total (%)
NTUHCGCH
Initial UTI (N = 93)UTI After Co-trimoxazole Prophylaxis (N = 29)Initial UTI (N = 218)UTI After Co-trimoxazole Prophylaxis (N = 37)UTI After Cephalexin Prophylaxis (N = 22)UTI After Cefaclor Prophylaxis (N = 12)UTI During Alternative Monotherapy (N = 22)
Ampicillin13/93 (14)2/29 (7)49/217 (23)5/36 (14)2/20 (10)0/12 (0)0/19 (0)a
Cefazolin63/93 (68)16/29 (55)168/218 (77)26/37 (70)3/21 (14)b0/12 (0)b6/21 (29)b
CefuroximeNDND207/218 (95)32/37 (86)5/21 (24)b0/12 (0)b8/21 (38)b
Cefmetazone84/93 (90)26/29 (90)NDNDNDNDND
CeftriaxoneNDND212/218 (97)34/37 (92)12/21 (57)b5/12 (42)b10/21 (48)b
Cefotaxime88/93 (95)26/29 (90)NDNDNDNDND
Ceftazidime89/93 (96)27/29 (93)108/112 (96)28/32 (88)9/19 (47)b7/11 (64)c10/16 (63)b
Gentamicin85/93 (91)21/29 (72)a185/217 (85)26/36 (72)11/22 (50)b9/12 (75)11/19 (58)d
Amikacin92/93 (99)27/29 (93)216/218 (99)35/36 (97)18/21 (86)b10/12 (83)d16/20 (80)b
Imipenem93/93 (100)29/29 (100)124/124 (100)33/33 (100)18/18 (100)9/9 (100)13/14 (93)
Ciprofloxacin86/93 (92)24/29 (83)209/217 (96)31/36 (86)a17/21 (81)d12/12 (100)13/19 (68)b
Trimethoprim-sulfisoxazole49/93 (53)1/29 (3)b98/216 (45)3/36 (8)b5/18 (28)1/7 (14)5/17 (29)
  • ND, not done.

  • a Decreased susceptibility, compared with initial data, P < .05.

  • b Decreased susceptibility, compared with initial data, P < .001.

  • c Decreased susceptibility, compared with initial data, P < .005.

  • d Decreased susceptibility, compared with initial data, P < .01.