Table 1.
Characteristics of hospitalisations for ARI in 2006 and 2015
| 2006 | 2009 | 2012 | 2015 | p value | |
|---|---|---|---|---|---|
| All-cause hospitalisations | 402,270 | 389,067 | 381,091 | 370,553 | < 0.0001 |
| ARI hospitalisations | 6751 | 9641 | 11,744 | 11,896 | < 0.0001 |
| Age | |||||
| < 75 y-o | 44.4% | 44.4% | 40.5% | 41.0% | < 0.0001 |
| 75–79 y-o | 14.1% | 12.4% | 12.8% | 11.3% | < 0.0001 |
| 80–84 y-o | 16.2% | 16.0% | 16.0% | 15.2% | 0.002 |
| 85–89 y-o | 11.6% | 16.2% | 17.1% | 16.5% | < 0.0001 |
| ≥ 90 y-o | 13.7% | 11.0% | 13.6% | 16.0% | < 0.0001 |
| ARI ICU hospitalisations | 740 | 1239 | 2135 | 2036 | 0.0002 |
| Age | |||||
| < 75 y-o | 59.7% | 61.3% | 54.7% | 58.2% | < 0.0001 |
| 75–79 y-o | 14.5% | 13.2% | 15.0% | 12.2% | 0.014 |
| 80–84 y-o | 14.5% | 12.7% | 14.4% | 13.2% | 0.167 |
| 85–89 y-o | 8.3% | 9.0% | 11.0% | 10.2% | 0.225 |
| ≥ 90 y-o | 3.0% | 3.8% | 4.9% | 6.2% | < 0.0001 |
| Sex ratio (M/F) | |||||
| < 75 y-o | 2.07 | 1.75 | 1.95 | 2.07 | 0.646 |
| 75–79 y-o | 1.97 | 1.81 | 1.70 | 2.06 | 0.677 |
| 80–84 y-o | 1.49 | 1.38 | 1.67 | 1.55 | 0.083 |
| 85–89 y-o | 0.88 | 0.90 | 1.04 | 1.03 | 0.380 |
| ≥ 90 y-o | 1.20 | 0.96 | 1.0 | 0.51 | 0.161 |
| SAPS II (mean ± SD) | |||||
| Included age | |||||
| < 75 y-o | – | 33.6 ± 17.0a | 34.0 ± 17.3 | 36.4 ± 17.4 | 0.083 |
| 75–79 y-o | – | 38.9 ± 13.3a | 40.0 ± 16.4 | 42.6 ± 15.7 | 0.173 |
| 80–84 y-o | – | 41.7 ± 13.8a | 42.3 ± 17.2 | 44.3 ± 17.9 | 0.348 |
| 85–89 y-o | – | 40.8 ± 13.2a | 41.5 ± 15.0 | 41.3 ± 14.0 | 0.665 |
| ≥ 90 y-o | – | 39.3 ± 12.6a | 39.9 ± 13.2 | 40.0 ± 10.7 | 0.726 |
| Excluded age | |||||
| < 75 y-o | – | 24.4 ± 16.1a | 24.4 ± 16.5 | 26.4 ± 16.7 | 0.083 |
| 75–79 y-o | – | 22.9 ± 13.3a | 24.0 ± 16.4 | 26.6 ± 15.7 | 0.173 |
| 80–84 y-o | – | 23.7 ± 13.8a | 24.3 ± 17.2 | 26.3 ± 17.9 | 0.348 |
| 85–89 y-o | – | 22.8 ± 13.2a | 23.5 ± 15.0 | 23.3 ± 14.0 | 0.665 |
| ≥ 90 y-o | – | 21.3 ± 12.6a | 21.9 ± 13.2 | 22.0 ± 10.7 | 0.726 |
| Invasive MV (n, %) | |||||
| < 75 y-o | 172 (38.9) | 224 (29.5) | 425 (36.4) | 440 (37.1) | 0.037 |
| 75–79 y-o | 43 (40.2) | 51 (31.3) | 77 (24.0) | 75 (30.2) | 0.007 |
| 80–84 y-o | 33 (30.8) | 49 (31.2) | 90 (29.3) | 74 (27.6) | 0.388 |
| 85–89 y-o | 18 (29.0) | 18 (16.1) | 34 (14.5) | 31 (15.0) | 0.602 |
| ≥ 90 y-o | 0 (0) | 2 (4.3) | 12 (11.5) | 8 (6.3) | 0.141 |
| Non-invasive MV (n, %) | |||||
| < 75 y-o | 92 (20.8) | 165 (21.7) | 353 (30.2) | 447 (37.7) | < 0.0001 |
| 75–79 y-o | 25 (23.4) | 51 (31.3) | 100 (31.2) | 95 (38.3) | 0.038 |
| 80–84 y-o | 31 (29.0) | 43 (27.4) | 102 (33.2) | 103 (38.4) | 0.004 |
| 85–89 y-o | 19 (30.6) | 22 (19.6) | 78 (33.2) | 56 (27.1) | 0.001 |
| ≥ 90 y-o | 1 (4.5) | 3 (6.4) | 24 (23.1) | 40 (31.5) | < 0.0001 |
| Vasopressor (n, %) | |||||
| < 75 y-o | 101 (22.9) | 133 (17.5) | 271 (23.2) | 308 (26.0) | 0.033 |
| 75–79 y-o | 37 (34.6) | 29 (17.8) | 57 (17.8) | 55 (22.2) | 0.049 |
| 80–84 y-o | 21 (19.6) | 24 (15.3) | 64 (20.8) | 52 (19.4) | 0.374 |
| 85–89 y-o | 11 (17.7) | 11 (9.8) | 23 (9.8) | 24 (11.6) | 0.825 |
| ≥ 90 y-o | 2 (9.1) | 1 (2.1) | 12 (11.5) | 7 (5.5) | 0.136 |
| LOS in ICU (day, mean ± SD) | |||||
| < 75 y-o | 8.3 ± 13.0 | 7.5 ± 10.0 | 8.7 ± 12.7 | 10.6 ± 16.8 | 0.067 |
| 75–79 y–o | 11.8 ± 22.9 | 8.6 ± 13.5 | 8.3 ± 12.4 | 9.8 ± 15.1 | 0.447 |
| 80–84 y-o | 7.0 ± 10.5 | 8.6 ± 11.4 | 8.0 ± 10.1 | 8.2 ± 9.3 | 0.595 |
| 85–89 y-o | 5.2 ± 5.5 | 5.6 ± 5.1 | 5.9 ± 6.3 | 6.2 ± 6.7 | 0.012 |
| ≥ 90 y-o | 3.7 ± 3.4 | 3.8 ± 3.3 | 5.1 ± 4.9 | 6.0 ± 6.7 | 0.003 |
Four representative years are presented in the table. The statistical analyses were performed on the complete 10-year trends
y-o years old, M male, F female, ICU intensive care unit, ARI acute respiratory infection, MV mechanical ventilation, LOS length of stay
aSAPS score from 2010, not available on hospital discharge database before