Table 1.
Baseline characteristics of the long-term care facility cohort.
| Fourth-dose group (N = 12,262) | Third-dose group (N = 12,262) | |
|---|---|---|
| Baseline date, mean | 4 March 2022 | 4 March 2022 |
| Age, years | 86·4 (80·1-91·8) | 86·4 (80·1-91·8) |
| Female sex | 8312 (67·8) | 8340 (68·0) |
| Born in Sweden | 10,947 (89·3) | 10,878 (88·7) |
| Vaccination schedule | ||
| BNT162b2 for primary-series | 12,154 (99·1) | 11,932 (97·3) |
| BNT162b2 as third dose | 9915 (80·9) | 9870 (80·5) |
| BNT162b2 as fourth dose | 7197 (58·7) | |
| mRNA-1273 as fourth dose | 5065 (41·3) | |
| Mean date of Senior Alert evaluation | 15 April 2020 | 7 March 2020 |
| MNA-SF score (0-14), mean (SD) | 10·8 (2·4) | 10·7 (2·5) |
| MNS score (8-28), mean (SD) | 22·9 (3·3) | 23·1 (3·3) |
| General condition | ||
| Good | 7032 (57·3) | 7066 (57·6) |
| Pretty good | 4318 (35·2) | 4360 (35·6) |
| Bad | 354 (2·9) | 382 (3·1) |
| Very bad | 25 (0·2) | 22 (0·2) |
| Missing | 533 (4·4) | 432 (3·5) |
| Unintentional weight loss last three months | ||
| No | 8443 (68·9) | 8234 (67·2) |
| 1-3 kg | 1785 (14·6) | 1702 (13·9) |
| >3 kg | 803 (6·5) | 851 (6·9) |
| Unknown | 1231 (10·0) | 1475 (12·0) |
| Incontinence | ||
| No | 3970 (32·4) | 4455 (36·3) |
| Temporary but unusual | 1685 (13·7) | 1608 (13·1) |
| Urinary but not bowel | 2480 (20·2) | 2576 (21·0) |
| Both urinary and bowel | 3594 (29·3) | 3191 (26·0) |
| Missing | 533 (4·4) | 432 (3·5) |
| Neuropsychological conditions | ||
| None | 3718 (30·3) | 4340 (35·4) |
| Mild dementia or depression | 5644 (46·0) | 5391 (44·0) |
| Severe dementia or depression | 2900 (23·7) | 2531 (20·6) |
| Mental status | ||
| Fully oriented | 3595 (29·3) | 4147 (33·8) |
| Sometimes disoriented | 6860 (55·9) | 6535 (53·3) |
| No proper response | 1258 (10·3) | 1138 (9·3) |
| Unreachable | 16 (0·1) | 100·1) |
| Missing | 533 (4·4) | 432 (3·5) |
| Movement ability | ||
| Walking with or without aid | 7238 (59·0) | 7380 (60·2) |
| Walking with help of person | 1369 (11·2) | 1437 (11·7) |
| Dependent on wheelchair | 2988 (24·4) | 2869 (23·4) |
| Bedridden | 134 (1·1) | 144 (1·2) |
| Unknown | 533 (4·4) | 432 (3·5) |
Data are median (IQR) or n (%) unless otherwise specified. IQR=interquartile range. MNA-SF=Mini Nutritional Assessment Short-Form. MNS=Modified Norton Scale. SD=standard deviation.