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. 2021 Oct 3;11(10):e052482. doi: 10.1136/bmjopen-2021-052482

Table 2.

Admission signs, symptoms and severity of illness on admission related to COVID-19 in hospitalised patients with and without an ID diagnosis

Controls ID group P value of comparison
n (%) N n (%) N
Cough 972 (67.6) 1438 309 (64.6) 478 0.239
Cough with sputum production* 285 (22.7) 1254 58 (14.6) 397 <0.001
Cough with bloody sputum 41 (3.3) 1240 9 (2.3) 393 0.401
Fever 1004 (69.6) 1442 335 (69.8) 480 1.000
Sore throat 123 (10.4) 1186 29 (8.0) 364 0.191
Runny nose* 49 (4.2) 1168 6 (1.7) 357 0.023
Wheezing 94 (7.7) 1228 41 (10.1) 407 0.145
Ear pain 7 (0.6) 1150 3 (0.8) 364 0.711
Chest pain* 225 (17.8) 1267 35 (8.7) 404 <0.001
Muscle aches* 275 (23.1) 1192 30 (8.4) 357 <0.001
Joint pain 70 (6.1) 1147 18 (5.1) 356 0.520
Fatigue 511 (40.7) 1254 145 (37.5) 387 0.260
Shortness of breath* 953 (67.3) 1416 274 (59.8) 458 0.004
Disturbance or loss of taste* 51 (8.8) 578 3 (1.4) 207 <0.001
Disturbance or loss of smell* 36 (6.1) 588 1 (0.5) 212 <0.001
Headache* 177 (14.9) 1184 20 (5.5) 362 <0.001
Altered consciousness or confusion* 233 (17.6) 1326 124 (29.9) 415 <0.001
Seizures 28 (2.2) 1291 41 (9.9) 415 <0.001
Abdominal pain 187 (14.6) 1280 53 (13.2) 403 0.514
Vomiting and/or nausea* 323 (24.3) 1329 67 (15.7) 426 <0.001
Diarrhoea* 279 (21.0) 1327 58 (13.4) 432 <0.001
Conjunctivitis 11 (0.9) 1205 4 (1.0) 384 0.767
Lymphadenopathy 10 (0.8) 1206 0 (0.0) 390 0.131
Skin rash 33 (2.7) 1228 8 (2.0) 396 0.581
Skin ulcers 19 (1.5) 1231 6 (1.5) 401 1.000
Haemorrhage 19 (1.5) 1261 4 (1.0) 416 0.626
Requirement of oxygen therapy on admission* 406 (28.9) 1407 170 (35.1) 484 0.011
Median respiratory rate (breaths per minute) on admission (IQR)** 21 (10–50) 1404 22 (10–48) 464 0.009
Mean clinical frailty score (SD) 3.55 (2.17) 437 5.14 (1.89) 175 <0.0001

The number of patients in the ID group presenting with COVID-19 related symptoms on admission to hospital, compared with controls using Fisher’s exact test.

*Significant difference between the ID group and controls.

Significant differences between the ID group and controls are highlighted in bold.

**We excluded respiratory rate values that were below 10 or higher than 50 breaths per minute as such data were considered outliers.

ID, intellectual disabilities.