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Table 1 Baseline characteristics, vital signs, laboratory parameters and outcomes of patients with sepsis

From: Prognostic accuracy of the serum lactate level, the SOFA score and the qSOFA score for mortality among adults with Sepsis

   Lactate group 1 Lactate group 2 Total P
Number   1166 699 1865  
Baseline variables
 Age   70 (56–80) 66 (55.5–77) 68 (56–78.25) 0.057
 Sex (%) Female 502 (43.05) 300 (42.92) 802 (43.00) 0.955
Male 664 (56.95) 399 (57.08) 1063 (57.00)  
 Ethnicity (%) White 883 (71.43) 473 (67.67) 1356 (72.71) < 0.001
Black 94 (8.06) 76 (10.87) 170 (9.12)  
Yellow 29 (2.49) 25 (3.58) 54 (2.90)  
Others 160 (13.72) 125 (17.88) 285 (15.28)  
Admission type (%) Urgent 22 (1.89) 16 (2.29) 38 (2.04) 0.836
Emergency 1088 (93.31) 650 (92.99) 1738 (93.19)  
Elective 56 (4.80) 33 (4.72) 89 (4.77)  
ICU stay (%) CCU 94 (8.06) 63 (9.01) 157 (84.18) 0.247
CSRU 65 (5.57) 29 (4.15) 94 (50.40)  
MICU 705 (60.46) 441 (63.09) 1146 (61.45)  
SICU 188 (16.12) 114 (16.31) 302 (16.19)  
TSICU 114 (9.78) 52 (7.44) 166 (8.90)  
Vital signs
  HR 93 (79–107.5) 101 (82.5–112) 96 (81–109) < 0.001
SBP 106 (99–111.5) 104 (95.5–112) 104 (97–112) < 0.001
DBP 54 (48–61) 53 (49–61.5) 53.5 (48.75–61) 0.092
MBP 70 (66–76.5) 68 (64–77) 69.5 (65–77) 0.001
RR 21 (19–24) 23 (19.5–26) 22 (19–26) < 0.001
T 37 (36–37) 37 (36–37) 37 (36–37) < 0.001
SpO2 97 (95–99) 97 (94–98) 97 (95–99) < 0.001
Laboratory parameters (mmol/L)
  Hemoglobin 10.2 (9.1–12.79) 10.4 (9.2–11.8) 10.2 (9.1–11.6) 0.051
Albumin 2.7 (2.3–3.1) 2.6 (2.2–3.1) 2.6 (2.2–3.1) 0.220
WBC 14.2 (9.2–40) 13.45 (7.55–20.43) 14 (8.6–20.2) 0.423
Bilirubin 0.8 (0.4–1.8) 1.35 (0.6–4.1) 1 (0.5–2.5) 0.001
BUN 35 (21–57) 36.5 (22.5–78.55) 35.5 (21.5–56) 0.001
Potassium 4.1 (3.8–4.6) 4.4 (3.9–4.9) 4.2 (3.8–4.8) < 0.001
Sodium 138.5 (135–141.38) 138 (134.5–141.5) 138 (135–141.5) < 0.001
Bicarbonate 20.5 (18–24) 17.5 (14.5–20.5) 19.5 (16–22.5) < 0.001
Cr 1.6 (1–2.8) 1.9 (1.2–3.1) 1.8 (1.08–3) < 0.001
Platelet 193.5 (120.25–290.5) 154 (86.5–241.25) 180 (104.5–265.38) 0.300
Lactate 2.05 (1.53–2.80) 4.95 (3.90–7.35) 3.23 (2.04–4.96) < 0.001
Score system
  SAPS II 47 (37–56) 57 (46–69) 50 (40–61) < 0.001
SOFA 7 (5–10) 11 (8–13) 8 (6–11) < 0.001
GCS 15 (14–15) 15 (13–15) 15 (13–15) 0.685
qSOFA (%) 0 26 (2.23) 10 (0.015) 36 (1.93) < 0.001
1 155 (13.29) 46 (6.58) 201 (10.78)  
2 763 (65.44) 486 (69.53) 1249 (66.97)  
3 222 (19.04) 157 (22.46) 379 (20.32)  
Outcome (%)
  30-day mortality 395 (33.88) 414 (59.23) 809 (43.38) < 0.001
90-day mortality 508 (43.57) 474 (67.81) 982 (52.65) < 0.001
1-year mortality 600 (51.46) 499 (71.39) 1099 (58.93) < 0.001
Hospital mortality 408 (34.99) 425 (60.80) 833 (44.66) < 0.001
Severe sepsis (%) 1120 (96.05) 658 (94.13) 1778 (95.34) 0.057
Septic shock (%) 738 (63.29) 491 (70.24) 1229 (65.90) 0.002
  1. ICU, intensive care unit; SICU, surgical intensive care unit; CCU, cardiac care unit; CSRU, cardiac surgery recovery unit; MICU, medical intensive care unit; TSICU, Trauma surgical intensive care unit; GCS, Glasgow Coma Scale; SBP, systolic blood pressure; DBP, diastolic blood pressure; MBP, mean blood pressure; HR, heart rate; RR, respiratory rate; T, temperature; WBC, white blood cell; BUN, blood urea nitrogen; Cr, creatinine. P < 0.05 means significant different