Table 3.
Multivariable logistic regression using the forward Wald method for the identification of predictors of a major depressive disorder (MDD) in chronically critically ill (CCI) patients three to six months after the transfer from acute ICU to post-acute ICU.
| Multivariable logistic regression | |||
|---|---|---|---|
| OR | CI | p value | |
| Psychological variables at (post-acute) ICU | |||
| Perceived helplessness in ICU1 | 1.792 | 1.08–2.971 | 0.024∗ |
| Psychological variables three to six months after discharge from post-acute ICU | |||
| Diagnosis of PTSD according to the SCID I | 7.414 | 2.63–20.94 | <.001∗∗∗ |
| Cox and Snell R 2 | 0.153 | ||
| Nagelkerke's R 2 | 0.252 | ||
| −2 log-likelihood | 99.458 | ||
1Method of multivariable logistic regression analysis: Wald forward; SCID I = Structured Clinical Interview for DSM-IV; ∗ p ≤ 0.05; ∗∗∗ p ≤ 0.001.