Table 5 Estimated number of influenza-associated excess respiratory or cardiovascular hospitalizations per 100,000 people by age group and epidemic season in Portuguese public hospitals between 2008/2009 and 2017/2018
From: Excess hospitalizations and mortality associated with seasonal influenza in Portugal, 2008–2018
Season | Age groups (in years) 95% confidence interval | |||||||
|---|---|---|---|---|---|---|---|---|
0–4 | 5–18 | 19–49 | 50–64 | 65–74 | ≥ 75 | ≥ 65 | All ages | |
2008/ 2009 | – | – | – | 2.5 (− 7.1; 13.1) | 83.4 (63.6; 101.7) | 391.6 (332.2; 444.1) | 229.7 (191.7; 261.6) | 40.9 (30; 50.6) |
2009/ 2010 | 18.3 (− 34.8; 73.2) | 25.7 (20.8; 30.6) | 36.5 (32.9; 40.4) | 32.7 (23.6; 41.7) | – | – | – | 16.4 (6.6; 25.6) |
2010/ 2011 | – | 0.7 (− 5.7; 7.3) | 21.8 (17; 26.8) | 59 (48.5; 69) | 63.4 (43.4; 83.6) | – | 37.5 (2.2; 74.6) | 26.7 (16.2; 37.5) |
2011/ 2012 | – | 1 (− 4.6; 6.4) | 9.1 (5.1; 13.6) | 29.7 (20; 39.9) | 112.6 (93.9; 130.3) | 565.3 (511.9; 624.3) | 336.9 (302.2; 371.8) | 68.6 (58.4; 78.7) |
2012/ 2013 | – | – | 5.8 (1.2; 10.5) | 26.3 (15.4; 37.5) | 31.8 (9.2; 54.4) | 54.6 (− 11.6; 119.4) | 50.4 (10.5; 92.2) | 4.4 (− 7.7; 16) |
2013/ 2014 | 83.4 (36.1; 134.3) | – | 17.8 (13.9; 21.8) | 45.5 (35.2; 55.6) | 55.2 (36.9; 72.9) | 108 (52; 160.5) | 84.1 (50.2; 116.3) | 32.5 (22.7; 42.2) |
2014/ 2015 | – | – | 8.2 (4.7; 12) | 41.7 (33.6; 51.5) | 101.8 (85.7; 117.8) | 595.8 (547.4; 645.9) | 350.6 (322.6; 380.8) | 77.1 (68.5; 86.3) |
2015/ 2016 | 150.8 (87.2; 210.2) | 18.9 (12.5; 24.9) | 26.5 (21.7; 31.4) | 62.8 (51.8; 73.9) | 63.1 (41.2; 83.3) | 216.2 (151.2; 282.6) | 137.8 (98.6; 180) | 56.6 (44.9; 68.3) |
2016/ 2017 | – | – | 4.8 (0.6; 8.9) | 42.5 (33.2; 51.5) | 81.4 (64.8; 98.8) | 585.9 (536.8; 639.2) | 330.8 (300.6; 363.3) | 85.2 (76.1; 94.4) |
2017/ 2018 | 154.7 (85.1; 220.1) | 3.1 (− 3.5; 10.1) | 10.8 (6.2; 15.7) | 64.9 (53.2; 76.1) | 102.1 (78.6; 124.2) | 365.7 (297.2; 434.2) | 238.4 (196.1; 281.2) | 71.9 (59.1; 84.1) |
9 years meana | 43.2 (− 124.8; 122.2) | 2.6 (− 6; 7.6) | 11.6 (6.8; 15.7) | 41.7 (31.5; 52) | 77.2 (57.5; 96.3) | 320.3 (261.9; 378.2) | 199.6 (163.9; 235.8) | 51.5 (40.9; 62) |
3 years meanb | 101.8 (27.2; 151.7) | 7.3 (0.7; 12.9) | 14 (9.5; 18.6) | 56.7 (46.1; 67.2) | 82.2 (61.5; 102.1) | 389.3 (328.4; 452) | 235.7 (198.5; 274.9) | 71.2 (60.1; 82.3) |