Table 1.
Descriptive statistics, frequency, and characteristics of the study sample (N = 13,203).
| Predictors | N | % |
|---|---|---|
| Clinical setting | - | - |
| (Ordinary hospital) * | 9818 | 74.36 |
| (ICU, intensive + sub-intensive) | 3385 | 25.64 |
| Hospital-stay | - | - |
| Regular * | 12,064 | 91.37 |
| Long-term | 1139 | 8.63 |
| Age | - | - |
| [0–10) | 412 | 3.12 |
| [10–20) | 181 | 1.37 |
| [20–30) | 167 | 1.26 |
| [30–40) | 401 | 3.04 |
| [40–50) | 1082 | 8.20 |
| [50–60) * | 1881 | 14.25 |
| [60–70) | 2237 | 16.94 |
| [70–80) | 2847 | 21.56 |
| [80–102) | 3991 | 30.23 |
| Wave | - | - |
| First wave | 2391 | 18.11 |
| Second wave * | 3369 | 25.52 |
| Third wave | 4173 | 31.61 |
| Out-waves | 3270 | 24.77 |
* Reference categories.