Table 2.
Pneumonia aetiology, based on ICD-9_CM codes
|
Aetiology |
HCAP |
PNP |
CAP |
|---|---|---|---|
| |
n = 2257 |
n = 6775 |
n = 17107 |
| n% | n% | n% | |
| Bronchopneumonia, organism unspecified |
903(40.0) |
3482(51.4) |
8148(47.6) |
| Pneumonia, organism unspecified |
637(28.2) |
1830(27.0) |
4901(28.6) |
| Pneumonia, specified organisms |
|
|
|
|
Bacterial pneumonia, unspecified |
330(14.6) |
863(12.7) |
2299(13.4) |
|
Pneumonia due to Pseudomonas |
82(3.6) |
44(0.6) |
200(1.2) |
|
Pneumonia due to other specified bacteria |
59(2.6) |
105(1.6) |
247(1.4) |
|
Pneumococcal pneumonia [Streptococcus pneumoniae] |
45(2.0) |
108(1.6) |
289(1.7) |
|
Methicillin-susceptible pneumonia due to Staphylococcus aureus |
32(1.4) |
16(0.2) |
99(0.6) |
|
Pneumonia due to Klebsiella pneumoniae |
17(0.7) |
26(0.4) |
93(0.5) |
|
Pneumonia due to other gram-negative bacteria |
15(0.7) |
10(0.1) |
80(0.5) |
|
Pneumonia due to Staphylococcus, unspecified |
15(0.7) |
19(0.3) |
122(0.7) |
|
Pneumonia due to Escherichia coli [E. coli] |
13(0.6) |
9(0.1) |
54(0.3) |
|
Respiratory conditions due to chemical fumes and vapours |
14(0.6) |
89(1.3) |
23(0.1) |
| Other | 95(4.3) | 174(2.6) | 552(3.2) |