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. Author manuscript; available in PMC: 2015 Mar 1.

Published in final edited form as: J Pediatr Nurs. 2013 Sep 30;29(2):152–157. doi: 10.1016/j.pedn.2013.09.001

Table 3.

Antibiotic susceptibility of Gram-negative rods other than Escherichia coli isolated from urine by age group

	Age Category					Chi-square test p-value

	<2 years	2–5 years	5–10 years	11–15 years	16–18 years
Ampicillin	14 (30%)	75 (53%)	46 (38%)	33 (35%)	72 (39%)	0.015
Amoxicillin-clavulanate^*	18 (56%)	44 (66%)	44 (59%)	38 (62%)	72 (66%)	0.795
Cefazolin	30 (64%)	117 (82%)	86 (72%)	68 (74%)	147 (81%)	0.029
Cephalothin	31 (67%)	105 (74%)	77 (64%)	60 (65%)	131 (72%)	0.361
Ciprofloxacin	35 (100%)	86 (99%)	55 (100%)	47 (100%)	118 (98%)	0.707
Gentamicin	56 (98%)	151 (97%)	128 (99%)	92 (99%)	176 (97%)	0.486
Nitrofurantoin	21 (45%)	44 (31%)	64 (53%)	38 (41%)	66 (36%)	0.004
Tetracycline	32 (70%)	52 (37%)	78 (65%)	67 (73%)	116 (64%)	<0.001
Tobramycin	56 (98%)	151 (97%)	129 (99%)	96 (100%)	181 (98%)	0.322
TMP/SMX	46 (81%)	116 (74%)	102 (78%)	89 (91%)	172 (93%)	<0.001

TMP/SMX: trimethoprim/sulfamethoxazole

^*

Susceptibility testing not routinely reported for ampicillin susceptible isolates