Table 1.
Characteristics of patients hospitalised for COVID-19 with and without an ID diagnosis
| Controls | ID group | P value of comparison | ||||
| n | N | n | N | |||
| 1518 | 506 | |||||
| Age group (%) | <20 | 117 (7.7) | 39 (7.7) | |||
| 20–29 | 114 (7.5) | 38 (7.5) | ||||
| 30–39 | 150 (9.9) | 50 (9.9) | ||||
| 40–49 | 159 (10.5) | 53 (10.5) | ||||
| 50–59 | 336 (22.1) | 112 (22.1) | ||||
| 60–69 | 324 (21.3) | 108 (21.3) | ||||
| 70–79 | 207 (13.6) | 69 (13.6) | ||||
| 80+ | 111 (7.3) | 37 (7.3) | ||||
| Sex (%) | Female | 660 (43.5) | 220 (43.5) | |||
| Male | 858 (56.5) | 286 (56.5) | ||||
| Ethnicity (%) | Aboriginal/First Nations | 3 (0.2) | 1 (0.2) | |||
| Black | 36 (2.4) | 12 (2.4) | ||||
| East Asian | 3 (0.2) | 1 (0.2) | ||||
| Other | 96 (6.3) | 32 (6.3) | ||||
| South Asian | 57 (3.8) | 19 (3.8) | ||||
| West Asian | 9 (0.6) | 3 (0.6) | ||||
| White | 1314 (86.6) | 438 (86.6) | ||||
| Chronic cardiac disease | 309 (21.5) | 1439 | 81 (16.9) | 479 | 0.036 | |
| Hypertension (physician diagnosed) | 252 (31.9) | 791 | 56 (18.7) | 300 | <0.001 | |
| Chronic pulmonary disease (not asthma) | 191 (13.4) | 1430 | 44 (9.2) | 478 | 0.016 | |
| Asthma (physician diagnosed) | 270 (18.8) | 1435 | 68 (14.1) | 481 | 0.022 | |
| Chronic kidney disease | 140 (9.8) | 1433 | 53 (11.0) | 481 | 0.432 | |
| Mild, moderate or severe liver disease* | 54 (3.8) | 1429 | 15 (3.1) | 480 | 0.574 | |
| Diabetes† | 266 (18.9) | 1407 | 85 (18.2) | 467 | 0.784 | |
| Chronic neurological disorder | 156 (10.9) | 1432 | 177 (36.6) | 483 | <0.001 | |
| Malignant neoplasm | 100 (7.0) | 1426 | 20 (4.2) | 476 | 0.029 | |
| Chronic haematological disease | 39 (2.7) | 1427 | 13 (2.7) | 476 | 1.000 | |
| Obesity (as defined by clinical staff) | 207 (15.7) | 1317 | 69 (16.0) | 431 | 0.879 | |
| Rheumatological disorder | 99 (6.9) | 1426 | 20 (4.2) | 473 | 0.037 | |
| Dementia | 85 (5.9) | 1437 | 47 (9.9) | 473 | 0.005 | |
| Malnutrition | 30 (2.2) | 1378 | 12 (2.6) | 459 | 0.590 | |
| Smoking | ||||||
| Former smoker | 279 (26.4) | 1055 | 43 (13.7) | 313 | <0.001 | |
| Never smoked | 676 (64.1) | 247 (78.9) | ||||
| Yes | 100 (9.5) | 23 (7.3) | ||||
The sample of 506 patients with an intellectual disability diagnosis from the UK ISARIC-4C matched to 1518 controls without an intellectual disability diagnosis based on age group, sex and ethnicity.
Significant differences between the ID group and controls are highlighted in bold.
*MiId, moderate and severe liver disease were combined into one category.
†The variables diabetes and type, diabetes with complications, and diabetes without complications were combined into one category. The number of patients in the ID group with the comorbidities listed above on admission to hospital were compared with controls using Fisher’s exact test.
ID, intellectual disabilities.