Table 2 Clinical characteristics for hospital survivors and non-survivors in patients with admission blood lactate concentration within the reference range
| Â | n | Hospital Non-survivors | n | Hospital Survivors | P-value |
|---|---|---|---|---|---|
Male Sex | 607 | 58.2% (353) | 3,357 | 59% (1,981) | 0.71 |
APACHE II score | 485 | 22.1 (7.3) | 2,891 | 14.2 (6.2) | < 0.0001 |
Age (yr) | 556 | 66.0 (16.5) | 3,090 | 60.7 (18.7) | < 0.0001 |
Number on mechanical ventilation | 551 | 77.3% (426) | 3,313 | 48.7% (1,613) | < 0.0001 |
Surgical patients | 607 | 31% (188) | 3,357 | 50.9% (1,709) | < 0.0001 |
Diagnosis at admission | Â | Â | Â | Â | Â |
Cardiac and vascular | 607 | 15.2% (92) | 3,357 | 20.4% (685) | 0.003 |
Thoracic and respiratory | 607 | 24.2% (147) | 3,357 | 20% (671) | 0.017 |
Trauma | 607 | 3.6% (22) | 3,357 | 8.8% (295) | < 0.0001 |
Neurological | 607 | 18.1% (110) | 3,357 | 10.9% (366) | < 0.0001 |
Gastrointestinal tract diseases | 607 | 15.3% (93) | 3,357 | 23.7% (796) | < 0.0001 |
Other | 607 | 23.6% (143) | 3,357 | 16.2% (544) | < 0.0001 |
ICU stay (days) | 606 | 3.0 (2.0 to 8.0) | 3,357 | 2.0 (1.3 to 4.0) | < 0.0001 |
Hospital stay (days) | 501 | 12.9 (5.2 to 30.2) | 3,064 | 13.0 (7.9 to 26.7) | 0.041 |
Admission blood lactate (mmom.L -1 ) | 607 | 1.3 (1 to 1.6) | 3,357 | 1.2 (0.9 to 1.5) | < 0.0001 |
Time-weighted blood lactate (mmom.L -1 ) | 599 | 1.4 (1.1 to 1.9) | 3,212 | 1.20 (1.0 to 1.5) | < 0.0001 |
Max blood lactate (mmom.L -1 ) | 607 | 2.4 (1.6 to 4.1) | 3,357 | 1.7 (1.3 to 2.4) | < 0.0001 |