Table 3. Demographic, clinical, and laboratory characteristics of patients who were transferred and not transferred to ICU at the time of their intubation.
| Not transferred | Transferred | OR | 95%CI | p | |
|---|---|---|---|---|---|
| N = 77 | N = 74 | ||||
| Demographics | |||||
| Female gender | 39/77 (50.6) | 35/74 (47.3) | 0.87 | 0.46–1.66 | 0.68 |
| Age, years | 74 (61–82.5) | 70 (56–78.25) | 0.98 | 0.96–1 | 0.062 |
| With spouse* | 39/74 (52.7) | 44/68 (64.7) | 1.65 | 0.84–3.23 | 0.148 |
| With offspring* | 54/75 (72) | 55/73 (75.3) | 1.19 | 0.57–2.47 | 0.645 |
| Charlson score | 6 (5–8) | 5 (2–7) | 0.82 | 0.72–0.93 | 0.002 |
| Intubation information | |||||
| Main indication | |||||
| Respiratory | 19/77 (24.7) | 44/74 (59.5) | ref | ref | ref |
| Neurological | 33/77 (42.9) | 21/74 (28.4) | 0.28 | 0.13–0.59 | 0.001 |
| Cardiac arrest | 25/77 (32.5) | 9/74 (12.2) | 0.16 | 0.06–0.4 | <0.001 |
| Location | |||||
| Emergency Dpt | 19/77 (24.7) | 20/74 (27) | ref | ref | ref |
| Ward | 55/77 (71.4) | 49/74 (66.2) | 0.82 | 0.39–1.72 | 0.594 |
| Other | 4/77 (5.2) | 5/74 (6.8) | 1.13 | 0.26–4.85 | 0.874 |
| On Weekdays | 46/77 (59.7) | 52/74 (70.3) | 1.59 | 0.81–3.13 | 0.177 |
| Hospital status | |||||
| Normal night | 27/77 (35.1) | 25/74 (33.8) | ref | ref | ref |
| On-call night | 32/77 (41.6) | 31/74 (41.9) | 1.05 | 0.5–2.18 | 0.904 |
| Morning shift | 18/77 (23.4) | 18/74 (24.3) | 1.08 | 0.46–2.53 | 0.859 |
| Emergency indication | 55/77 (71.4) | 45/74 (60.8) | 0.62 | 0.31–1.23 | 0.169 |
| Circulatory support | 22/77 (28.6) | 13/74 (17.6) | 0.53 | 0.25–1.16 | 0.112 |
| Infection | |||||
| No infection | 41/77 (53.2) | 50/74 (67.6) | ref | ref | ref |
| Community | 16/77 (20.8) | 14/74 (18.9) | 0.72 | 0.31–1.64 | 0.432 |
| Nosocomial | 20/77 (26) | 10/74 (13.5) | 0.41 | 0.17–0.97 | 0.043 |
| Septic Shock | 11/77 (14.3) | 10/74 (13.5) | 0.94 | 0.37–2.36 | 0.891 |
| Vital signs and laboratory values immediately before intubation | |||||
| Heart rate (bpm) | 100 (85–116) | 100 (85.5–115) | 1.01 | 0.99–1.02 | 0.485 |
| MAP (mmHg) | 80 (56.7–97.2) | 86.7 (67.5–96.7) | 1.01 | 1–1.02 | 0.114 |
| Temperature (°C) | 36.6 (36–38.1) | 36.6 (36.2–37.2) | 0.79 | 0.61–1.04 | 0.089 |
| RR (/min) | 28 (15–35) | 30 (17–35) | 1 | 0.97–1.02 | 0.906 |
| Blood pH | 7.32 (7.19–7.41) | 7.27 (7.15–7.4) | 0.54 | 0.08–3.48 | 0.515 |
| PO2/FiO2 | 136 (83–268) | 123.3 (75–247.5) | 0.998 | 0.996–1.002 | 0.568 |
| GCS | 6 (3–12.5) | 10 (4.75–15) | 1.09 | 1.02–1.17 | 0.015 |
| Henatocrit (%) | 30.2 (25.2–37.9) | 34.1 (28.8–38.9) | 1 | 0.99–1.01 | 0.767 |
| White blood cells (x 109/L) | 9.37 (4.23–17.47) | 12.65 (7.29–18.27) | 1 | 0.99–1.01 | 0.961 |
| Neutropenia | 4/77 (5.2) | 1/74 (1.4) | 0.25 | 0.03–2.26 | 0.215 |
| Platelets (x 109/L) | 111 (43.75–201) | 213 (138–75–285.5) | 1.007 | 1.004–1.01 | <0.001 |
| >150 | 32/77 (41.6) | 54/74 (73) | ref | ref | ref |
| 100–149 | 12/77 (15.6) | 8/74 (10.6) | 0.38 | 0.14–1.04 | 0.059 |
| 50–99 | 10/77 (13) | 5/74 (6.8) | 0.29 | 0.09–0.92 | 0.035 |
| 20–49 | 13/77 (16.9) | 4/74 (5.4) | 0.18 | 0.05–059 | 0.005 |
| <20 | 10/77 (13) | 3/74 (4.1) | 0.17 | 0.04–0.67 | 0.011 |
| Serum Creatinine (μmol/L) | 132.6 (80.4–231.6) | 95.5 (63.6–130.8) | 0.67 | 0.51–0.89 | 0.006 |
| Serum Sodium (mmol/L) | 141 (137–146) | 139 (136–143) | 0.96 | 0.93–1 | 0.063 |
| Serum Potassium (mmol/L) | 4.3 (3.8–5) | 4–3 (3.7–4.9) | 0.91 | 0.68–1.22 | 0.54 |
| Serum Bilirubin (μmol/L) | 13.5 (8.7–25) | 8.9 (6.2–16.9) | 0.72 | 0.52–0.99 | 0.045 |
| Serum Glucose (mmol/L) | 7.94 (5.33–11.32) | 7.94 (6.48–10.45) | 1 | 0.998–1.004 | 0.623 |
| Serum Albumin (g/L) | 29.5±7.3 | 32±7.5 | 1.64 | 1.05–2.56 | 0.031 |
| Predictive Scores | |||||
| APACHE II | 28 (23–34) | 23 (18–29) | 0.91 | 0.87–0.96 | <0.001 |
| APACHE III | 109 (87.25–131.75) | 87 (61–99) | 0.97 | 0.96–0.98 | <0.001 |
| APACHE IV | 99.5 (79.25–121) | 76 (58–91) | 0.97 | 0.96–0.98 | <0.001 |
| SAPS II | 66.5 (53–78–75) | 49.5 (37.75–62.25) | 0.94 | 0.92–0.97 | <0.001 |
| SAPS III | 85 (76–94) | 70 (62–84) | 0.96 | 0.93–0.98 | <0.001 |
| SOFA | 9 (7.25–12) | 6 (3–9) | 0.77 | 0.69–0.86 | <0.001 |
| MPM II Day0 mortality (%) | 73 (43.3–88) | 41–8 (21.2–68.8) | 0.97 | 0.96–0.99 | <0.001 |
| MPM III Day0 mortality (%) | 77.3 (49.5–91.2) | 39.5 (15.6–80.6) | 0.98 | 0.97–0.99 | <0.001 |
Univariate analysis.
*Some data is missing because some patients did not stay in the hospital long enough to collect information regarding their family status and complete medical history from their next of kin. Categorical variables are presented as n/N (%), continuous variables as mean ± SD or median [25th–75th percentile]. bpm: beats per minute, GCS: Glasgow Coma Scale, Dpt: Department, ICU: Intensive Care Unit, MAP: Mean arterial pressure, RR: respiratory rate, APACHE: Acute Physiology Assessment and Chronic Health Evaluation, SAPS: Simplified Acute Physiology Score, SOFA: Sequential Organ Failure Assessment, MPM: Mortality Prediction Model.