Table 1. Bacterial isolates from the three study cohorts

Microbe	2001 n (%)	2010–2011 n (%)	2013–2015 n (%)
E. coli	112 (82.4)^a	180 (78.3)^a	129 (81.6)^a
Staph. saprophyticus	8 (5.9)^a	38 (16.5)^a	22 (13.9)^a
Enterobacter spp.	0^a	1 (0.4)^a	4 (2.5)^a
Enterococcus faecalis	3 (2.2)^a	2 (0.9)^a	1 (0.6)^a
Klebsiella spp.	6 (4.4)^a	5 (2.2)^a	2 (1.3)^a
Proteus spp.	5 (3.7)^a	4 (1.7)^a	0^a
Staph. aureus	2 (1.5)^a	0^a	0^a
No significant growth	48 (26.1)^b	176 (43.3)^b	101 (39.0)^b
Total number of cultures with significant bacteriuria	136 (73.9)^b	230 (56.7)^b	158 (61.0)°^b
Total number of cultures	184	406	259

^a% of total number of cultures with significant bacteriuria. ^b% of total number of cultures.