Table 2.
Factors related to time in ICU (N = 309).
| Continuous Descriptors of ICU Stay | Men (n = 145) | Women (n = 164) | P value* |
|---|---|---|---|
| Median (IQR) | Median (IQR) | ||
| Therapeutic Intervention Score (TISS-28) Range: 9–50 | 25 (14) | 26 (14) | Equivalent at P ≤ .05**** |
| Days of stay in ICU (LOS)** Range: 1–51 |
4 (5) | 4.5 (4.5) | .38 |
| Days of Intubation in ICU Range: 1–48 |
6 (8) | 5 (6) | .69 |
|
| |||
| Men (n = 145) | Women (n = 164) | P value* | |
| n (%) | n (%) | ||
|
| |||
| ICU Mortality | 20 (14) | 33 (20) | .14 |
| ICU Delirium | 110 (77) | 129 (80) | .50 |
| ICU readmission | 13 (9) | 16 (10) | .81 |
| Intubation | 78 (54) | 89 (54) | .93 |
| Use of vasopressor medications (Dopamine, dobutamine, norepinephrine, epinephrine, phenylephrine, vasopressin) |
54 (17) | 77 (25) | .0848 |
| Tracheostomy | 8 (5) | 7 (4) | .61 |
| Continuous Positive Airway Pressure (CPAP) or BiLevel Positive Airway Pressure (BiPAP) | 30 (21) | 42 (26) | .31 |
| Pulmonary Artery Catheterization | 10 (7) | 19 (12) | .16 |
| Enteral Nutrition (Nasogastric Tube or Percutaneous Endoscopic Gastrostomy Tube) | 53 (37) | 60 (37) | .99 |
| Hemodialysis | 7 (5) | 10 (6) | .62 |
| Continuous Veno-Venous Hemofiltration (CVVH) | 5 (3) | 8 (5) | .53 |
| Change in code status to “Less aggressive” | 37 (26) | 45 (27) | .70 |
†Missing data present for some subjects. For ICU delirium missing = 5.
*Chi-square tests for categorical variables and Wilcoxon rank sum tests for continuous variables were used with statistical significance defined as P value ≤ .05.
**Length of stay was for first admission.
***Delirium was defined by either positive ICU Confusion Assessment Method (CAM) or chart indication of delirium during ICU stay.
****A nonparametric test of equivalence rejects the null hypothesis that men and women are not equivalent at significance level 0.05 for equivalence limits of ±15% around median value. IQR (Interquartile Range, i.e., central fifty percent distribution).