Variables | Training cohort | Validation cohort | P | ||||||
---|---|---|---|---|---|---|---|---|---|
Total (n = 464) | Normal (n = 334) | Prolonged (n = 120) | Total (n = 205) | Normal (n = 149) | Prolonged (n = 56) | ||||
Age, (year) | 49.0 (35.0,62.0) | 47.0 (31.8,60.0) | 54.0 (44.8,65.0) | 50.0 (36.0,62.0) | 48.0 (34.0,61.0) | 56.5 (46.8,65.2) | 0.342 | ||
BMI, (kg/m2) | 26.6 (22.8,31.4) | 26.5 (23.2,30.9) | 27.3 (22.5,32.2) | 27.5 (23.6,32.3) | 27.4 (23.4,32.0) | 28.2 (24.0,32.4) | 0.119 | ||
Male, n (%) | 236 (50.9%) | 161 (46.8%) | 75 (62.5%) | 128 (62.4%) | 96 (64.4%) | 32 (57.1%) | 0.007 | ||
Ethnicity, n (%) | 0.309 | ||||||||
Caucasian | 266 (57.3%) | 195 (56.7%) | 71 (59.2%) | 128 (62.4%) | 96 (64.4%) | 32 (57.1%) | Â | ||
African American | 108 (23.3%) | 92 (26.7%) | 16 (13.3%) | 44 (21.5%) | 33 (22.1%) | 11 (19.6%) | Â | ||
Latin American | 15 (3.23%) | 21 (6.10%) | 5 (4.17%) | 3 (1.46%) | 4 (2.68%) | 2 (3.57%) | Â | ||
Asian | 26 (5.60%) | 10 (2.91%) | 5 (4.17%) | 6 (2.93%) | 3 (2.01%) | 0 (0.00%) | Â | ||
Other | 49 (10.6%) | 26 (7.56%) | 23 (19.2%) | 24 (11.7%) | 13 (8.72%) | 11 (19.6%) | Â | ||
DM type, n (%) | 0.003 | ||||||||
T1DM | 265 (57.1%) | 205 (59.6%) | 60 (50.0%) | 97 (47.3%) | 82 (55.0%) | 15 (26.8%) | Â | ||
T2DM | 88 (19.0%) | 61 (17.7%) | 27 (22.5%) | 63 (30.7%) | 45 (30.2%) | 18 (32.1%) | Â | ||
Unknown | 111 (23.9%) | 78 (22.7%) | 33 (27.5%) | 45 (22.0%) | 22 (14.8%) | 23 (41.1%) | Â | ||
DKA stage | Â | Â | Â | Â | Â | Â | 0.016 | ||
Mild | 275 (59.3%) | 211 (61.3%) | 64 (53.3%) | 144 (70.2%) | 108 (72.5%) | 36 (64.3%) | Â | ||
Moderate | 106 (22.8%) | 68 (19.8%) | 38 (31.7%) | 39 (19.0%) | 25 (16.8%) | 14 (25.0%) | Â | ||
Severe | 83 (17.9%) | 65 (18.9%) | 18 (15.0%) | 22 (10.7%) | 16 (10.7%) | 6 (10.7%) | Â | ||
Emergency admission, n (%) | 304 (65.5%) | 226 (65.7%) | 78 (65.0%) | 137 (66.8%) | 107 (71.8%) | 30 (53.6%) | 0.809 | ||
Medical History, n (%) | Â | ||||||||
Congestive heart failure | 83 (17.9%) | 50 (14.5%) | 33 (27.5%) | 37 (18.0%) | 19 (12.8%) | 18 (32.1%) | 1.000 | ||
Myocardial infarct | 78 (16.8%) | 37 (10.8%) | 41 (34.2%) | 36 (17.6%) | 22 (14.8%) | 14 (25.0%) | 0.899 | ||
Peripheral vascular disease | 36 (7.76%) | 23 (6.69%) | 13 (10.8%) | 17 (8.29%) | 11 (7.38%) | 6 (10.7%) | 0.936 | ||
Cerebrovascular disease | 30 (6.47%) | 12 (3.49%) | 18 (15.0%) | 14 (6.83%) | 2 (1.34%) | 12 (21.4%) | 0.995 | ||
Chronic pulmonary disease | 60 (12.9%) | 41 (11.9%) | 19 (15.8%) | 31 (15.1%) | 16 (10.7%) | 15 (26.8%) | 0.522 | ||
Renal disease | 108 (23.3%) | 74 (21.5%) | 34 (28.3%) | 63 (30.7%) | 42 (28.2%) | 21 (37.5%) | 0.052 | ||
Malignant cancer | 16 (3.45%) | 12 (3.49%) | 4 (3.33%) | 14 (6.83%) | 11 (7.38%) | 3 (5.36%) | 0.081 | ||
RR, (breaths/min) | 20.0 (16.0,24.0) | 20.0 (16.0,23.2) | 20.5 (17.8,26.2) | 20.0 (16.0,24.0) | 19.0 (16.0,23.0) | 20.0 (18.0,24.0) | 0.460 | ||
HR, (beats/min) | 100 (88.0,114) | 101 (88.0,113) | 99.0 (85.8,115) | 98.0 (89.0,108) | 98.0 (87.0,108) | 100 (92.0,109) | 0.242 | ||
Temperature, (°C) | 36.8 (36.6,37.1) | 36.8 (36.6,37.1) | 36.8 (36.4,37.1) | 36.9 (36.6,37.2) | 36.8 (36.6,37.1) | 37.1 (36.7,37.4) | 0.199 | ||
MAP, (mmHg) | 85.0 (73.0,96.0) | 87.0 (74.0,96.0) | 81.5 (70.8,97.0) | 88.0 (76.0,99.0) | 89.0 (77.0,100) | 86.0 (70.0,99.0) | 0.097 | ||
UO, (ml) | 2238 (1324,3550) | 2335 (1448,3700) | 1870 (939,2778) | 2165 (1358,3010) | 2250 (1385,3390) | 1802 (1184,2540) | 0.137 | ||
GCS | 15.0 (14.0,15.0) | 15.0 (14.0,15.0) | 13.0 (9.00,14.0) | 14.0 (13.0,15.0) | 15.0 (14.0,15.0) | 13.0 (12.0,14.0) | 0.323 | ||
SOFA | 3.00 (1.00,5.00) | 2.00 (1.00,3.25) | 6.00 (4.00,10.0) | 3.00 (2.00,5.00) | 3.00 (1.00,4.00) | 7.00 (3.00,9.00) | 0.152 | ||
LODS | 3.00 (1.00,5.00) | 3.00 (1.00,4.00) | 6.00 (4.00,9.00) | 4.00 (2.00,6.00) | 3.00 (1.00,5.00) | 6.00 (3.75,8.25) | 0.206 | ||
OASIS | 26.0 (21.8,33.0) | 24.0 (20.0,29.0) | 34.0 (29.0,41.0) | 26.0 (21.0,33.0) | 24.0 (20.0,29.0) | 35.5 (27.5,42.2) | 0.812 | ||
SAPSII | 28.0 (20.0,38.0) | 25.0 (18.0,34.0) | 38.0 (30.0,47.0) | 28.0 (21.0,40.0) | 24.0 (19.0,34.0) | 38.0 (27.0,50.0) | 0.631 | ||
APSIII | 46.0 (36.0,59.0) | 44.0 (34.0,53.2) | 58.0 (43.0,72.2) | 46.0 (37.0,57.0) | 43.0 (34.0,53.0) | 55.0 (47.0,73.2) | 0.884 | ||
CCI | 4.00 (2.00,7.00) | 3.00 (2.00,6.00) | 5.00 (3.00,8.00) | 5.00 (2.00,7.00) | 4.00 (2.00,7.00) | 7.00 (4.00,8.00) | 0.096 | ||
WBC, (109/L) | 14.0 (10.1,18.8) | 13.7 (9.58,17.9) | 14.8 (12.0,20.2) | 13.3 (9.20,18.2) | 12.9 (9.00,18.2) | 14.6 (10.9,18.5) | 0.188 | ||
Platelets, (109/L) | 218 (169,274) | 222 (176,275) | 208 (146,273) | 215 (160,264) | 215 (167,269) | 198 (139,261) | 0.363 | ||
Hematocrit, (%) | 32.1 (28.4,36.1) | 32.5 (28.9,36.3) | 31.6 (26.7,35.8) | 32.0 (27.2,36.7) | 32.7 (27.8,37.2) | 30.8 (26.1,35.6) | 0.833 | ||
RDW, (%) | 13.6 (12.8,14.5) | 13.5 (12.7,14.5) | 13.8 (13.1,14.5) | 13.8 (13.0,15.3) | 13.7 (12.9,14.7) | 14.1 (13.2,16.1) | 0.017 | ||
Hemoglobin, (g/dL) | 10.8 (9.30,12.1) | 11.0 (9.40,12.3) | 10.4 (8.78,11.8) | 10.8 (8.90,12.3) | 11.1 (9.30,12.5) | 9.95 (8.40,11.9) | 0.981 | ||
AG, (mmol/L) | 26.0 (21.0,33.0) | 26.0 (22.0,33.0) | 27.0 (21.0,33.0) | 25.0 (21.0,30.0) | 26.0 (22.0,31.0) | 23.0 (20.0,27.0) | 0.198 | ||
Lactate, (mmol/L) | 2.20 (1.50,3.40) | 2.10 (1.50,3.20) | 2.60 (1.67,4.00) | 2.20 (1.60,3.60) | 2.10 (1.60,3.20) | 2.35 (1.60,4.40) | 0.990 | ||
Bicarbonate, (mmol/L) | 13.0 (8.00,17.0) | 13.0 (8.00,17.0) | 13.0 (8.00,18.0) | 14.0 (10.0,18.0) | 13.0 (10.0,18.0) | 15.0 (11.0,19.0) | 0.010 | ||
Chloride, (mmol/L) | 109 (105,114) | 109 (105,114) | 109 (105,114) | 108 (104,112) | 108 (104,112) | 108 (106,114) | 0.041 | ||
Sodium min, (mmol/L) | 133 (130,137) | 133 (130,136) | 134 (130,139) | 133 (129,136) | 133 (128,135) | 134 (129,141) | 0.305 | ||
Sodium max, (mmol/L) | 140 (137,143) | 140 (138,143) | 142 (137,145) | 139 (137,143) | 139 (137,142) | 142 (137,144) | 0.065 | ||
Potassium min, (mmol/L) | 3.60 (3.20,3.90) | 3.60 (3.27,3.90) | 3.50 (3.17,4.00) | 3.70 (3.30,4.00) | 3.70 (3.30,4.00) | 3.50 (3.30,3.80) | 0.141 | ||
Potassium max, (mmol/L) | 5.00 (4.40,5.70) | 5.00 (4.40,5.70) | 5.00 (4.40,5.62) | 5.10 (4.40,6.00) | 5.10 (4.50,6.00) | 4.90 (4.30,5.88) | 0.254 | ||
Calcium, (mg/dL) | 7.80 (7.40,8.33) | 7.85 (7.40,8.30) | 7.80 (7.20,8.40) | 7.90 (7.50,8.30) | 8.00 (7.60,8.40) | 7.70 (7.20,8.20) | 0.238 | ||
Glucose min, (mg/dL) | 95.0 (73.0,120) | 94.0 (72.0,118) | 99.5 (78.0,129) | 96.0 (76.0,122) | 93.0 (76.0,125) | 99.0 (76.0,120) | 0.726 | ||
Glucose max, (mg/dL) | 360 (293,460) | 352 (290,446) | 386 (324,492) | 373 (302,468) | 364 (297,453) | 394 (322,484) | 0.507 | ||
Creatinine, (mg/dL) | 1.40 (1.00,2.10) | 1.30 (0.97,1.90) | 1.80 (1.20,3.05) | 1.50 (1.00,2.30) | 1.30 (1.00,2.10) | 1.75 (1.30,2.85) | 0.297 | ||
BUN, (mg/dL) | 26.0 (16.0,45.0) | 25.0 (14.0,39.0) | 38.5 (19.8,60.0) | 31.0 (18.0,51.0) | 27.0 (17.0,46.0) | 39.0 (22.8,60.5) | 0.052 | ||
POP, (mOsm/kg) | 294 (287,302) | 294 (287,302) | 297 (286,308) | 293 (286,301) | 292 (286,300) | 295 (290,303) | 0.194 | ||
PH | 7.27 (7.15,7.33) | 7.27 (7.16,7.33) | 7.24 (7.13,7.33) | 7.29 (7.20,7.35) | 7.29 (7.21,7.36) | 7.28 (7.20,7.34) | 0.004 | ||
Complication, n (%) | Â | Â | Â | Â | Â | Â | Â | ||
Suspected infection | 259 (55.8%) | 162 (47.1%) | 97 (80.8%) | 117 (57.1%) | 66 (44.3%) | 51 (91.1%) | 0.828 | ||
HHS | 154 (33.2%) | 106 (30.8%) | 48 (40.0%) | 57 (27.8%) | 37 (24.8%) | 20 (35.7%) | 0.197 | ||
AKI | Â | Â | Â | Â | Â | Â | 0.658 | ||
Stage 0-I | 342 (73.7%) | 294 (85.5%) | 48 (40.0%) | 147 (71.7%) | 127 (85.2%) | 20 (35.7%) | Â | ||
Stage II-III | 122 (26.3%) | 50 (14.5%) | 72 (60.0%) | 58 (28.3%) | 22 (14.8%) | 36 (64.3%) | Â | ||
Treatment, n (%) | Â | Â | Â | Â | Â | Â | Â | ||
CRRT | 12 (2.59%) | 2 (0.58%) | 10 (8.33%) | 3 (1.46%) | 1 (0.67%) | 2 (3.57%) | 0.572 | ||
Mechanical ventilation | 64 (13.8%) | 16 (4.65%) | 48 (40.0%) | 32 (15.6%) | 8 (5.37%) | 24 (42.9%) | 0.618 | ||
Vasoactive agent | 64 (13.8%) | 16 (4.65%) | 48 (40.0%) | 33 (16.1%) | 7 (4.70%) | 26 (46.4%) | 0.508 | ||
Heparin | 365 (78.7%) | 280 (81.4%) | 85 (70.8%) | 160 (78.0%) | 120 (80.5%) | 40 (71.4%) | 0.939 | ||
Insulin, (U) | 71.6 (33.8,118) | 66.9 (32.2,111) | 84.7 (38.7,181) | 67.1 (33.2,115) | 62.3 (33.0,98.5) | 101 (57.0,169) | 0.751 | ||
Infusion volume, (ml) | 6017 (4053,8369) | 5771 (3990,7869) | 6792 (4256,10006) | 5856 (3925,8414) | 5663 (3762,8118) | 6549 (4323,8900) | 0.939 |