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Volume 31, Number 9—September 2025
Research
Epidemiology of Chikungunya Hospitalizations, Brazil, 2014–2024
Table 3
Patient characteristics from 7,421 chikungunya hospitalizations covered by the unified health system, Brazil, 2014–2024*
| Characteristics | Year, no. (%) |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Total | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | |
| Sex | ||||||||||||
| M | 3,282 (44.2) | 10 (37) | 34 (44.7) | 620 (42) | 787 (45.5) | 266 (46.1) | 285 (44.9) | 104 (49.3) | 130 (45.5) | 441 (42.5) | 340 (44.6) | 265 (43.8) |
| F |
4,139 (55.8) |
17 (63) |
42 (55.3) |
856 (58) |
942 (54.5) |
311 (53.9) |
350 (55.1) |
107 (50.7) |
156 (54.5) |
596 (57.5) |
422 (55.4) |
340 (56.2) |
| Race, ethnicity | ||||||||||||
| White | 1,009 (13.6) | 2 (7.4) | 18 (23.7) | 160 (10.8) | 140 (8.1) | 90 (15.6) | 164 (25.8) | 30 (14.2) | 37 (12.9) | 77 (7.4) | 139 (18.2) | 152 (25.1) |
| Black | 182 (2.5) | 0 | 3 (3.9) | 19 (1.3) | 33 (1.9) | 20 (3.5) | 32 (5) | 8 (3.8) | 2 (0.7) | 6 (0.6) | 35 (4.6) | 24 (4.0) |
| Brown | 4,526 (61) | 5 (18.5) | 20 (26.3) | 815 (55.2) | 1,099 (63.6) | 337 (58.4) | 293 (46.1) | 133 (63) | 153 (53.5) | 742 (71.6) | 533 (69.9) | 396 (65.5) |
| Asian | 360 (4.9) | 0 | 1 (1.3) | 148 (10) | 104 (6) | 29 (5) | 34 (5.4) | 3 (1.4) | 2 (0.7) | 2 (0.2) | 9 (1.2) | 28 (4.6) |
| Indigenous | 9 (0.1) | 0 | 0 | 1 (0.1) | 0 | 2 (0.3) | 1 (0.2) | 0 | 0 | 0 | 0 | 5 (0.8) |
| Not reported |
1,335 (18) |
20 (74.1) |
34 (44.7) |
333 (22.6) |
353 (20.4) |
99 (17.2) |
111 (17.5) |
37 (17.5) |
92 (32.2) |
210 (20.3) |
46 (6) |
0 |
| Age group, y | ||||||||||||
| <1 | 228 (3.1) | 2 (7.4) | 10 (13.2) | 56 (3.8) | 59 (3.4) | 10 (1.7) | 17 (2.7) | 3 (1.4) | 22 (7.7) | 26 (2.5) | 8 (1) | 15 (2.5) |
| 1–9 | 1,262 (17.0) | 1 (3.7) | 15 (19.7) | 236 (16) | 386 (22.3) | 71 (12.3) | 89 (14) | 35 (16.6) | 56 (19.6) | 147 (14.2) | 119 (15.6) | 107 (17.7) |
| 10–19 | 1,072 (14.4) | 4 (14.8) | 10 (13.2) | 205 (13.9) | 297 (17.2) | 88 (15.3) | 110 (17.3) | 23 (10.9) | 46 (16.1) | 120 (11.6) | 96 (12.6) | 73 (12.1) |
| 20–29 | 796 (10.7) | 6 (22.2) | 5 (6.6) | 154 (10.4) | 154 (8.9) | 93 (16.1) | 73 (11.5) | 40 (19) | 32 (11.2) | 115 (11.1) | 75 (9.8) | 49 (8.1) |
| 30–39 | 799 (10.8) | 6 (22.2) | 8 (10.5) | 157 (10.6) | 183 (10.6) | 95 (16.5) | 76 (12) | 31 (14.7) | 33 (11.5) | 99 (9.5) | 71 (9.3) | 40 (6.6) |
| 40–49 | 770 (10.4) | 3 (11.1) | 10 (13.2) | 151 (10.2) | 157 (9.1) | 90 (15.6) | 71 (11.2) | 21 (10) | 26 (9.1) | 112 (10.8) | 75 (9.8) | 54 (8.9) |
| 50–59 | 734 (9.9) | 2 (7.4) | 10 (13.2) | 126 (8.5) | 152 (8.8) | 53 (9.2) | 76 (12) | 16 (7.6) | 26 (9.1) |
124 (12) | 75 (9.8) | 74 (12.2) |
| 60–69 | 657 (8.9) | 1 (3.7) | 2 (2.6) | 125 (8.5) | 122 (7.1) | 36 (6.2) | 64 (10.1) | 17 (8.1) | 19 (6.6) | 117 (11.3) | 74 (9.7) | 80 (13.2) |
| 70–79 | 578 (7.8) | 1 (3.7) | 3 (3.9) | 133 (9) | 120 (6.9) | 22 (3.8) | 35 (5.5) | 17 (8.1) | 18 (6.3) | 97 (9.4) | 72 (9.4) | 60 (9.9) |
| 80–89 | 412 (5.6) | 1 (3.7) | 2 (2.6) | 105 (7.1) | 77 (4.5) | 16 (2.8) | 21 (3.3) | 7 (3.3) | 4 (1.4) | 64 (6.2) | 73 (9.6) | 42 (6.9) |
| >90 |
113 (1.5) |
0 |
1 (1.3) |
28 (1.9) |
22 (1.3) |
3 (0.5) |
3 (0.5) |
1 (0.5) |
4 (1.4) |
16 (1.5) |
24 (3.1) |
11 (1.8) |
| ICU admission | ||||||||||||
| N | 7,317 (98.6) | 27 (100) | 74 (97.4) | 1,466 (99.3) | 1,715 (99.2) | 571 (99) | 624 (98.3) | 206 (97.6) | 281 (98.3) | 1,023 (98.6) | 746 (97.9) | 584 (96.5) |
| Y |
104 (1.4) |
0 |
2 (2.6) |
10 (0.7) |
14 (0.8) |
6 (1) |
11 (1.7) |
5 (2.4) |
5 (1.7) |
14 (1.4) |
16 (2.1) |
21 (3.5) |
| Death | ||||||||||||
| N | 7,33 (98.9) | 27 (100) | 75 (98.7) | 1,449 (98.2) | 1,709 (98.8) | 576 (99.8) | 631 (99.4) | 206 (97.6) | 286 (100) | 1,028 (99.1) | 754 (99) | 596 (98.5) |
| Y | 84 (1.1) | 0 | 1 (1.3) | 27 (1.8) | 20 (1.2) | 1 (0.2) | 4 (0.6) | 5 (2.4) | 0 | 9 (0.9) | 8 (1) | 9 (1.5) |
*Information obtained from the Brazil Ministry of Health Datasus (https://datasus.saude.gov.br/transferencia-de-arquivos). ICU, intensive care unit.
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