Table 1 Characteristics of critically ill patients at admission in the intensive care unit according in the 4 groups.
Total n = 807 | RSV n = 151 | COVID-19 n = 332 | Seasonal influenza n = 258 | H1N1 influenza n = 66 | P | |
|---|---|---|---|---|---|---|
Age (years) | 70 [60; 79] | 72 [60; 79] | 68 [59; 77] | 72 [62; 81] | 66 [55; 74] | 0.001 |
Sex (male) | 501 (62) | 89 (59) | 239 (72) | 127 (49) | 46 (67) | < 0.001 |
BMI (Kg.m-2) | 27 [23; 30] | 26 [23; 30] | 27 [24; 31] | 26 [22; 31] | 25 [22; 28] | < 0.001 |
CCI | 2 [1; 4] | 5 [3; 7] | 1 [0; 2] | 2 [1; 4] | 2 [1; 3] | < 0.001 |
Young and previously healthy | 39 (5) | 4 (3) | 21 (6) | 8 (3) | 6 (9) | 0.094 |
Arterial hypertension | 421 (52) | 62 (41) | 181 (55) | 142 (55) | 36 (54) | 0.024 |
Myocardial infarction | 122 (15) | 38 (25) | 30 (9) | 43 (17) | 11 (17) | < 0.001 |
Congestive heart failure | 180 (22) | 70 (46) | 35 (11) | 62 (24) | 13 (20) | < 0.001 |
Arteriopathy of lower limbs | 67 (8) | 11 (7) | 19 (6) | 29 (11) | 8 (12) | 0.065 |
Cerebral stroke | 37 (5) | 4 (3) | 28 (8) | 22 (8) | 7 (11) | 0.046 |
Hemiplegia | 27 (3) | 3 (2) | 6 (2) | 15 (6) | 3 (4) | 0.038 |
Dementia | 35 (4) | 3 (2) | 13 (4) | 16 (6) | 3 (4) | 0.232 |
Cirrhosis | 28 (3) | 6 (4) | 7 (2) | 12 (5) | 3 (4) | 0.283 |
Chronic kidney disease | 47 (6) | 14 (9) | 11 (3) | 14 (5) | 8 (12) | 0.007 |
Chronic dialysis | 37 (5) | 9 (6) | 8 (2) | 12 (5) | 8 (12) | 0.007 |
Immunosuppressive treatment | 114 (14) | 28 (18) | 18 (5) | 54 (21) | 14 (21) | < 0.001 |
Hospital stay within 12 months | 280 (35) | 86 (58) | 55 (17) | 113 (44) | 26 (39) | < 0.001 |
Diabetes | 215 (27) | 45 (29) | 92 (28) | 64 (25) | 14 (21) | 0.493 |
COPD/asthma | 226 (28) | 67 (44) | 36 (11) | 106 (41) | 17 (26) | < 0.001 |
Current or former smoker | 310 (39) | 69 (47) | 100 (30) | 108 (42) | 33 (50) | < 0.001 |
Chronic alcoholism | 97 (12) | 13 (9) | 27 (8) | 40 (15) | 17 (26) | < 0.001 |
Cancer in remission for more than 5 years | 87 (11) | 3 (2) | 31 (9) | 46 (18) | 7 (11) | < 0.001 |
Active solid cancer | 99 (12) | 37 (24) | 16 (5) | 36 (14) | 10 (15) | < 0.001 |
Metastatic active solid cancer | 33 (4) | 14 (9) | 4 (1) | 13 (5) | 2 (3) | < 0.001 |
Leukemia | 13 (2) | 4 (3) | 0 (0) | 8 (3) | 1 (1) | 0.003 |
Lymphoma | 36 (4) | 4 (3) | 11 (3) | 15 (6) | 6 (9) | 0.09 |
SAPS-II score | 43 [33; 57] | 51 [39; 71] | 37 [28; 68] | 45 [38; 61] | 51 [41; 63] | < 0.001 |
SOFA score at admission | 6 [3; 10] | 8 [4; 11] | 4 [2; 8] | 8 [5; 11] | 9 [5; 12] | < 0.001 |
Fever at admission | 519 (68) | 48 (35) | 258 (84) | 165 (65) | 48 (78) | < 0.001 |
