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. 2021 Jun 25;49(5):889–905. doi: 10.1007/s15010-021-01599-5

Table 4.

Symptoms reported for patients meeting none of the clinical case definitions

Symptoma Age group (years) Missing data
Overall 0 10 20 30 40 50 60 70 80 90
n = 4622 n = 44 n = 100 n = 269 n = 256 n = 217 n = 309 n = 484 n = 922 n = 1406 n = 615
Confusion 1917 (46.9) 4 (9.8) 2 (4.2) 7 (6.2) 9 (5.8) 23 (14.1) 57 (21.3) 155 (35.1) 474 (52.8) 785 (57.7) 401 (66.4) 531 (11.5)
Fatigue 1245 (29.1) 9 (23.1) 10 (10.3) 30 (11.3) 37 (15.2) 42 (20.7) 83 (28.1) 148 (33.2) 284 (33.3) 444 (34.4) 158 (28.6) 340 (7.4)
Severe dehydration 472 (22.6) 1 (5.0) 1 (4.3) 4 (8.3) 2 (2.9) 7 (11.3) 18 (13.1) 40 (18.0) 110 (24.8) 201 (27.1) 88 (27.6) 2535 (54.8)
Nausea and vomiting 995 (22.2) 19 (44.2) 24 (24.0) 44 (16.4) 59 (23.4) 77 (36.0) 94 (31.2) 127 (27.1) 210 (23.4) 245 (18.3) 96 (16.2) 145 (3.1)
Abdominal pain 812 (18.5) 9 (22.5) 22 (22.4) 52 (19.5) 67 (26.6) 54 (25.8) 80 (27.0) 107 (23.1) 173 (19.6) 184 (13.9) 64 (11.2) 223 (4.8)
Diarrhoea 612 (13.8) 8 (19.0) 6 (6.1) 26 (9.7) 25 (10.0) 31 (14.8) 46 (15.5) 94 (20.3) 136 (15.2) 177 (13.4) 63 (10.9) 201 (4.3)
Headache 347 (8.3) 2 (6.1) 13 (13.4) 48 (18.4) 39 (16.0) 47 (23.2) 32 (11.0) 45 (10.3) 52 (6.3) 47 (3.8) 22 (4.1) 454 (9.8)
Muscle pains 301 (7.3) 4 (11.8) 5 (5.2) 19 (7.2) 28 (11.5) 24 (12.1) 27 (9.4) 39 (9.0) 54 (6.6) 65 (5.3) 36 (6.8) 482 (10.4)
Joint pains 293 (7.1) 3 (9.1) 4 (4.2) 9 (3.4) 8 (3.3) 13 (6.5) 14 (4.9) 27 (6.2) 49 (6.0) 109 (8.8) 57 (10.7) 473 (10.2)
Chest pain 299 (6.8) 0 (0.0) 1 (1.0) 12 (4.5) 15 (6.0) 21 (9.8) 44 (14.6) 49 (10.6) 51 (5.8) 79 (6.0) 27 (4.7) 209 (4.5)
Sore throat 277 (6.7) 4 (11.1) 24 (25.0) 83 (31.7) 62 (25.1) 39 (19.3) 16 (5.5) 18 (4.1) 17 (2.1) 9 (0.7) 5 (1.0) 460 (10.0)
Haemorrhage 233 (5.5) 0 (0.0) 1 (1.1) 5 (2.1) 10 (4.3) 12 (6.0) 14 (4.8) 22 (4.9) 45 (5.2) 84 (6.5) 40 (7.0) 347 (7.5)
Altered sense of smell 149 (4.9) 1 (4.0) 20 (24.1) 48 (22.7) 30 (16.0) 17 (11.4) 11 (5.1) 9 (2.8) 4 (0.7) 9 (1.0) 0 (0.0) 1584 (34.3)
Rhinorrhoea 188 (4.5) 3 (7.5) 28 (29.2) 58 (22.1) 43 (17.6) 23 (11.4) 14 (4.8) 7 (1.6) 6 (0.7) 2 (0.2) 4 (0.7) 476 (10.3)
Skin ulcer 153 (4.2) 1 (3.3) 0 (0.0) 0 (0.0) 0 (0.0) 2 (1.5) 9 (3.7) 13 (3.3) 43 (5.3) 51 (4.1) 34 (6.2) 982 (21.2)
Seizure 152 (3.8) 5 (11.6) 3 (6.2) 3 (2.7) 6 (3.9) 11 (6.7) 16 (6.1) 22 (5.1) 34 (3.9) 39 (3.0) 13 (2.3) 659 (14.3)
Altered sense of taste 101 (3.3) 1 (4.5) 10 (12.0) 27 (13.0) 15 (8.1) 10 (6.8) 3 (1.4) 7 (2.2) 11 (2.0) 13 (1.5) 4 (1.0) 1602 (34.7)
Rash 78 (1.8) 5 (11.6) 3 (3.0) 2 (0.8) 1 (0.4) 4 (2.0) 5 (1.7) 17 (3.8) 18 (2.2) 15 (1.2) 8 (1.5) 384 (8.3)
Wheeze 53 (1.2) 0 (0.0) 0 (0.0) 1 (0.4) 1 (0.4) 0 (0.0) 3 (1.0) 6 (1.3) 8 (0.9) 22 (1.7) 12 (2.1) 296 (6.4)

Symptoms experienced by < 25 individuals are omitted

aData are number (percent of patients with non-missing data within columns)