Table 2 Univariate correlates (p<0.15) of the presence or absence of pressure ulcers (PU) grade 2 and higher.
| Variable | PU present (n = 125) n (%) | PU absent (n = 1933) n (%) | Odds ratio† | p value† |
|---|---|---|---|---|
| Age (years) | <0.001 | |||
| ⩽49 | 16 (12.8) | 458 (23.7) | RC | |
| 50–74 | 59 (47.2) | 971 (50.2) | 1.78 | |
| ⩾75 | 50 (40.0) | 504 (26.1) | 3.01 | |
| Weight at admission (kg) | 0.09 | |||
| ⩽54 | 13 (10.7) | 193 (10.1) | 1.15 | |
| 55–94 | 94 (77.0) | 1586 (82.9) | RC | |
| ⩾95 | 15 (12.3) | 133 (7.0) | 1.91 | |
| Medical specialty | ||||
| Surgical | 86 (68.8) | 1068 (55.3) | 1.76 | 0.005 |
| Other (Medical, Neurology or Geriatric) | 39 (31.2) | 865 (44.7) | RC | |
| Mobility | ||||
| Slightly limited/fully mobile | 97 (77.6) | 1679 (86.9) | RC | |
| Immobile/very limited | 28 (22.4) | 254 (13.1) | 1.96 | 0.003 |
| Activity | ||||
| No limitation/walks occasionally | 78 (62.4) | 1343 (69.5) | RC | |
| Chair or bedfast | 47 (37.6) | 590 (30.5) | 1.41 | 0.07 |
| Abnormal appearance of the skin | 77 (61.6) | 1468 (75.9) | 2.06 | <0.001 |
| Diabetes | 24 (19.2) | 264 (13.7) | 1.54 | 0.07 |
| Previous pressure ulcer | 15 (12.0) | 154 (8.0) | 1.58 | 0.11 |
| Incontinence | ||||
| Continent/only urine incontinence | 116 (93.5) | 1851 (96.0) | RC | |
| Fecal incontinence/doubly incontinent | 8 (6.5) | 77 (4.0) | 1.81 | 0.13 |
| Friction/shear | ||||
| No problem | 73 (58.9) | 1388 (72.0) | RC | |
| Potential/actual problem | 51 (41.1) | 539 (28.0) | 1.89 | 0.001 |
| Surgery in coming week | 67 (53.6) | 710 (36.8) | 2.08 | <0.001 |
RC, reference category.
*Number of patient weeks in which the variable was available.
†Adjusted for week of admission.