Table 3 Microbiological characteristics
Total | Under 65 | Over 65 | P value | |
|---|---|---|---|---|
Pus culture (n, %) | N = 202 | N = 155 | N = 47 | |
Klebsiella spp | 77(38.1%) | 62(40.0%) | 15(31.9%) | 0.317 |
Escherichia coli | 19(9.4%) | 14(9.0%) | 5(10.6%) | 0.777 |
Enterococcus | 7(3.5%) | 4(2.6%) | 3(6.4%) | 0.357 |
Streptococcus | 8(4.0%) | 8(5.2%) | 0(0) | 0.202 |
Staphylococcus | 3(1.5%) | 2(1.3%) | 1(2.1%) | 0.550 |
Clostridium perfringens | 1(0.5%) | 1(0.7%) | 0(0) | 1 |
Other | 10(5.0%) | 7(4.5%) | 3(6.4%) | 0.701 |
Multiple bacteria | 17(8.4%) | 13(8.4%) | 4(8.5%) | 1 |
No growth | 60(29.7%) | 44(28.4%) | 16(34.0%) | 0.457 |
Blood culture (n, %) | N = 151 | N = 111 | N = 40 | |
Klebsiella spp | 13(8.6%) | 12(10.8%) | 1(2.5%) | 0.186 |
Escherichia coli | 8(5.3%) | 5(4.5%) | 3(7.5%) | 0.437 |
Enterococcus | 2(1.3%) | 1(0.9%) | 1(2.5%) | 0.461 |
Streptococcus | 4(2.7%) | 3(2.7%) | 1(2.5%) | 1 |
Staphylococcus | 4(2.7%) | 3(2.7%) | 1(2.5%) | 1 |
Clostridium perfringens | 1(0.7%) | 1(0.9%) | 0(0) | 1 |
Other | 3(2.0%) | 3(2.7%) | 0(0) | 0.566 |
Multiple bacteria | 5(3.3%) | 5(4.5%) | 0(0) | 0.326 |
No growth | 111(73.5%) | 78(70.3%) | 33(82.5%) | 0.133 |