Table. Comparison Between Baseline Group and Post–Emergency Laparotomy Collaborative Implementation Group.
| Variable | Baseline Group, mo 1-15 (n = 5562) | Post-ELC Implementation Group, mo 16-39 (n = 9247) | P Value |
|---|---|---|---|
| Age, mean (range), y | 65.3 (18-114) | 65 (18-99) | .33 |
| Sex, No. (%) | |||
| Male | 2625 (47.2) | 4336 (46.9) | .72 |
| Female | 2937 (52.8) | 4911 (53.1) | |
| No. of patients per mo, mean | 371.6 | 386.9 | .13 |
| P-POSSUM, No. (%) | |||
| Median (IQR) | 7.00 (2.7-21.9) | 6.30 (2.5-19.4) | .002 |
| 0-10.0 | 3233 (58.1) | 5661 (61.2) | |
| 10.1-20.0 | 834 (15.0) | 1311 (14.2) | |
| 20.1-30.0 | 387 (7.0) | 670 (7.2) | |
| 30.1-40.0 | 279 (5.0) | 419 (4.5) | |
| 40.1-50.0 | 196 (3.5) | 286 (3.1) | |
| 50.1-60.0 | 147 (2.6) | 232 (2.5) | |
| 60.1-70.0 | 142 (2.6) | 210 (2.3) | |
| 70.1-80.0 | 119 (2.1) | 167 (1.8) | |
| 80.1-90.0 | 116 (2.1) | 150 (1.6) | |
| 90.1-100 | 109 (2.0) | 141 (1.5) | |
| ASA grade, No. (%) | |||
| 1 | 554 (9.96) | 1017 (11.00) | .005 |
| 2 | 1988 (35.74) | 3358 (36.31) | |
| 3 | 1976 (35.53) | 3294 (35.62 | |
| 4 | 936 (16.83) | 1449 (15.67) | |
| 5 | 108 (1.94) | 129 (1.40) | |
| Preoperative physiologic variables | |||
| Blood lactate, median (range), mmol/L | 1.4 (0-20) | 1.4 (0.1-20) | >.99 |
| Systolic blood pressure, mean (range), mm Hg | 126.9 (12-226) | 127.1 (10.6-225) | .63 |
| Glasgow Coma Scale score,a mean (range) | 14.7 (3-15) | 14.7 (3-15) | .47 |
| Serum creatinine, mean (range), μmol/L | 93.2 (0.8-1200) | 91.1 (0.2-1083) | .06 |
Abbreviations: ASA, American Society of Anaesthesiologists physical status; ELC, Emergency Laparotomy Collaborative; IQR, interquartile range; P-POSSUM, Portsmouth Physiological and Operative Severity Score for the enumeration of Mortality and morbidity. SI conversion factors: To convert lactate to milligrams per deciliter, multiply by 0.111; creatinine to milligrams per deciliter, multiply by 88.4.
a
Glasgow Coma Scale score range: 1-15, with the highest score indicating complete consciousness.