Table 2.
Prevalence of comorbidities and their associations with isolated viruses (%/n)
| Influenza A | H1N1 | H3N2 | Influenza B | RSV | P | |
|---|---|---|---|---|---|---|
| Male | 61.3% (291) | 61.5% (93) | 48.8% (144) | 47.7% (105) | 38.1% (79) | < 0.001 |
| Age (median; [IQR]) | 74 [61–83] | 66 [64–89] | 78 [68–85] | 75 [65–83] | 78 [64–86] | < 0.001 |
| Smoking | 16.9% (94) | 19.9% (30) | 14.2% (42) | 13.6% (30) | 13.6% (30) | 0.35 |
| Diabetes | 24.6% (58) | 16.6% (25) | 28.1% (83) | 26.4% (58) | 26.5% (55) | 0.05 |
| CKD | 14.9% (83) | 11.2% (17) | 15.6% (46) | 13.6% (30) | 21.2% (44) | 0.05 |
| HF | 27.4% (153) | 15.2% (23) | 34.6% (102) | 29.6% (65) | 38.7% (80) | < 0.001 |
| CLD | 3.8% (21) | 2.0% (3) | 4.8% (14) | 3.6% (8) | 2.4% (5) | 0.37 |
| COPD/asthma | 26.7% (149) | 24.5% (37) | 30.2% (89) | 26.8% (59) | 35.5% (78) | 0.02 |
| ILD | 0.9% (5) | 0.7% (1) | 0.7% (2) | 1.8% (4) | 2.9% (6) | 0.17 |
| OSA/OHS | 4.3% (24) | 9.3% (14) | 3.1% (9) | 3.6% (8) | 8.2% (17) | 0.008 |
| Solid transplant | 2.2% (12) | 4.0% (6) | 1.7% (5) | 1.4% (3) | 3.2% (7) | 0.25 |
| Solid neoplasm | 5.8% (32) | 5.3% (8) | 6.4% (19) | 5.0% (11) | 7.7% (16) | 0.66 |
| Hematological neoplasm | 11.0% (61) | 15.2% (23) | 8.1% (24) | 12.3% (27) | 12.6% (26) | 0.13 |
| HIV | 2.0% (11) | 2.0% (3) | 2.7% (8) | 3.6% (8) | 1.0% (2) | 0.32 |
Bold values indicate statistically significant P values (P < 0.05)
Statistical tests (Chi-2 and Kruskal–Wallis) excluded patients infected with non-subtyped Influenza A (n = 875) isolated microorganisms and proportions of clinical characteristics in patients harbouring them (%/n)