Table 4.
Factors associated with delirium in univariate analysis.
| Variable | Odds Ratio | 95% Confidence interval | P value | |
|---|---|---|---|---|
|
| ||||
| Age (years) | 60–74 (Reference) | 1 | - | - |
| >74 | 2.7 | 1.21–6.02 | .02 | |
| Gender | Male (Reference) | 1 | - | - |
| Female | 1.9 | 0.86–4.18 | .11 | |
| Marital status | Unmarried (Reference) | 1 | - | - |
| Married | 0.52 | 0.23–1.15 | .11 | |
| Living status | With family (Reference) | 1 | - | - |
| Alone | 2.6 | 0.69–9.83 | .16 | |
| Educational status | Illiterate (Reference) | 1 | - | - |
| ≤High School | 0.29 | 0.11–0.73 | .01 | |
| >High School | 0.36 | 0.08–1.75 | .21 | |
| Occupational status | Employed (Reference) | 1 | - | - |
| Unemployed | 3.3 | 1.43–7.61 | .01 | |
| Admission reason | Elective (Reference) | 1 | - | - |
| Acute | Not estimable | Not estimable | .1 | |
| Department | Medical (Reference) | 1 | - | - |
| Surgical | 0.49 | 0.19–1.22 | .13 | |
| Number of comorbidities | 0–2 (Reference) | 1 | - | |
| 3–5 | 2.69 | 1.14–6.33 | .02 | |
| Number of admission medications | <5 (Reference) | 1 | - | - |
| >5 | 1.15 | 0.52–2.55 | .74 | |
| Katz Index 2 weeks before admission | Independent (Reference) | 1 | - | - |
| Dependent | 0.99 | 0.41–2.36 | .97 | |
| SPMSQ at admission | Intact Cognitive Functioning (Reference) | 1 | - | - |
| Impaired Cognitive Functioning | 38.9 | 8.78–172.34 | <.001 | |