Table 1.
Participants' characteristics.
| Characteristics | Healthy young (n = 19) | Ambulatory older people (n = 18) | Bedridden older patients (n = 31) | P-value |
|---|---|---|---|---|
| Age (years), median (IQR) | 22 (21-22) | 78 (76.25–83.25) | 85 (81–92) | <0.01a |
| Female, n (%) | 7 (36.8) | 11 (61.1) | 22 (71.0) | 0.08b |
| Braden Scale score, median (IQR) | 23 (23-23) | 23 (23-23) | 12 (11-14) | <0.01a |
| Gastric fistula, n (%) | 0 (0) | 0 (0) | 8 (25.8) | <0.01b |
| Onset of PI, n (%) | 0 (0) | 0 (0) | 4 (12.9) | 0.19b |
| Depth of PI, n | – | – | d1:3, d2:1 | |
| Underlying diseases, n (%) | ||||
| Cerebrovascular disease | 0 (0) | 0 (0) | 18 (58.1) | <0.01b |
| Congestive heart failure | 0 (0) | 0 (0) | 6 (19.4) | 0.03b |
| Dementia | 0 (0) | 0 (0) | 3 (9.7) | 0.24b |
| Diabetes mellitus | 0 (0) | 1 (5.6) | 3 (9.7) | 0.47b |
| Urinary tract infection | 0 (0) | 0 (0) | 3 (9.7) | 0.24b |
| Medications, n (%) | ||||
| Steroid drug | 0 (0) | 0 (0) | 1 (3.2) | 1.00b |
| Antibacterial drug | 0 (0) | 0 (0) | 6 (19.4) | 0.02b |
| Live bacterial drug | 0 (0) | 1 (5.6) | 5 (16.1) | 0.12b |
a
Kruskal–Wallis test.
b
Fisher's exact test.