Table 1. Frequency distribution of uropathogens among different gender and age groups. Data are reported as number of isolates and percentages (within brackets) of total patients in each age group.
| Isolates | Age groups (in years) | aChi-square (degrees of freedom) | p-value | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤14 | 15–29 | 30–59 | ≥60 | ||||||||
| Total | Male | Female | Male | Female | Male | Female | Male | Female | |||
| 1574 | 104 | 43 | 100 | 183 | 321 | 325 | 308 | 190 | |||
| Citrobacter spp. | 21 | 1 (4.8) | 0 (0) | 0 (0) | 5 (23.8) | 3 (14.3) | 6 (28.6) | 4 (19.0) | 2 (9.5) | 6.865(3) | 0.076 |
| Escherichia coli | 916 | 54 (5.9) | 23 (2.5) | 55 (6.0) | 91 (9.9) | 185 (20.2) | 200 (21.8) | 176 (19.2) | 132 (14.4) | 27.62(3) | <0.001 |
| Enterobacter spp. | 26 | 3 (11.5) | 1 (3.8) | 1 (3.8) | 4 (15.4) | 2 (7.7) | 7 (26.9) | 4 (15.4) | 4 (15.4) | 4.429(3) | 0.219 |
| Klebsiella spp. | 162 | 11 (6.8) | 4 (2.5) | 6 (3.7) | 27 (16.7) | 33 (20.4) | 37 (22.8) | 25 (15.4) | 19 (11.7) | 16.88(3) | <0.001 |
| NFGNB | 46 | 6 (13.0) | 2 (4.3) | 4 (8.7) | 5 (10.9) | 11 (23.9) | 12 (26.1) | 6 (13.0) | 0 (0) | 6.974(3) | 0.073 |
| Proteus spp. | 28 | 2 (7.1) | 0 (0) | 2 (7.1) | 5 (17.9) | 9 (32.1) | 4 (14.3) | 5 (17.9) | 1 (3.6) | 6.087(3) | 0.107 |
| Pseudomonas aeruginosa | 125 | 14 (11.2) | 7 (5.6) | 14 (11.2) | 14 (11.2) | 20 (16.0) | 15 (12.0) | 33 (26.4) | 8 (6.4) | 8.044(3) | 0.045 |
| Enterococcus spp. | 148 | 12 (8.1) | 3 (2.0) | 11 (7.4) | 18 (12.2) | 35 (23.6) | 24 (16.2) | 29 (19.6) | 16 (10.8) | 8.594(3) | 0.035 |
| CoNS | 44 | 1 (2.3) | 0 (0) | 4 (9.0) | 11 (25.0) | 8 (18.2) | 8 (18.2) | 9 (20.5) | 3 (6.8) | 7.267(3) | 0.064 |
| Staphylococcus aureus* | 12 | 0 (0) | 1 (8.3) | 0 (0) | 2 (16.7) | 4 (33.3) | 1 (8.3) | 3 (25.0) | 1 (8.3) | 5.623(3) | 0.131 |
| Candida spp. | 109 | 3 (2.8) | 4 (3.7) | 5 (4.6) | 7 (6.4) | 21 (19.3) | 24 (22.0) | 27 (24.8) | 18 (16.5) | 2.395(3) | 0.494 |
| Other isolates# | 36 | 2 (5.6) | 0 (0) | 4 (11.1) | 5 (13.9) | 6 (16.7) | 6 (16.7) | 11 (30.6) | 2 (5.6) | 6.029(3) | 0.110 |
| Total | 1673 | 109 | 45 | 106 | 194 | 337 | 344 | 332 | 206 | 76.85(3) | <0.001 |
*
Including one methicillin-resistant S. aureus
#
Other isolates were: Providencia rettgeri (10), Morganella spp. (6), Staphylococcus saprophyticus (1), alpha-hemolytic streptococci (14 including one S. viridans), beta-hemolytic streptococci (3) and Trichosporon spp.(2)
a
Frequency of each uropathogen among different age groups was analyzed by the Chi-square test.
CoNS – coagulase negative staphylococci.
NFGNB – non-fermenting gram negative bacilli.