Table 3 The bacterial and viral aetiology of the enrolled patients
| Â | Number of patients (%) | ||||
|---|---|---|---|---|---|
| Â | Case category | Age group | |||
Total | CAP | NPLRTI | 15–64 years | ≥ 65 years | |
(n = 323) | (n = 154) | (n = 169) | (n = 237) | (n = 93) | |
Bacterial culture No. tested | 289 | 135 | 154 | 209 | 80 |
No. positive | 43(15) | 22(16) | 21(14) | 31(15) | 12(15) |
   S. pneumoniae | 8(3) | 4(3) | 4(3) | 6(3) | 2(3) |
   M. catarrhalis | 5(2) | 3(2) | 2(1) | 4(2) | 1(1) |
   H. influenza | 10(3) | 5(4) | 5(3) | 8(4) | 2(3) |
   S. aureus | 11(4) | 3(2) | 8(5) | 9(4) | 2(3) |
   P. aeruginosa | 4(1) | 4(3) | 0 | 1(0) | 3(4) |
   K. pneumonia | 5(2) | 3(2) | 2(1) | 3(1) | 2(3) |
Bacterial PCR No. tested | 286 | 135 | 154 | 209 | 80 |
No. positive | 132 (46) | 61 (45) | 71 (47) | 104 (46) | 28 (45) |
   H. influenza | 79 (28) | 37 (27) | 42 (28) | 63 (28) | 16 (26) |
   S. pneumonia | 65 (23) | 31 (23) | 34 (23) | 51 (23) | 14 (23) |
M. catarrhalis | 15 (5) | 8 (6) | 7 (5) | 11 (5) | 4 (6) |
Respiratory viruses No. tested | 357 | 167 | 190 | 264 | 93 |
No. positive | 73 (20) | 27 (16) | 46 (24) | 59 (22) | 14 (15) |
  Influenza A | 32 (9) | 10 (6) | 22 (12) | 26 (10) | 6 (6) |
  Influenza B | 13 (4) | 5 (3) | 8 (4) | 13 (5) | 0 |
  Rhinovirus | 22 (6) | 9 (5) | 13 (7) | 16 (6) | 6 (6) |
  Adenovirus | 3 (1) | 3 (2) | 0 | 3 (1) | 0 |
  RSV | 4 (1) | 1 (1) | 3 (2) | 2 (1) | 2 (2) |
Viral-bacterial co-infection | 57 (18) | 26 (17) | 31 (19) | 45 (19) | 12 (14) |