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Table 1 Demographic and baseline characteristics of the study population

From: Surfactant protein D (SP-D) gene polymorphism rs721917 is an independent predictor of acute kidney injury development in sepsis patients: a prospective cohort study

VariablesSepsisP
AllNon-AKIAKI
N330174156 
Mean age, years (SD)47 ± 844 ± 750 ± 70.013a
Male sex, n(%)158 (48)83 (48)75 (48)0.750
Mean SOFA scores (SD)12 ± 310 ± 412 ± 30.060
Positive blood culture, n(%)69 (21)29 (17)40 (26)0.145
Shock, n(%)121 (37)48 (28)73 (47)0.002a
ARDS, n(%)102 (31)60 (35)42 (27)0.089
Comorbidities, n(%)
 Hypertension45 (14)20 (12)25 (16)0.231
 Diabetes mellitus53 (16)22 (13)31 (20)0.074
Infection foci, n (%)
 Respiratory system142 (43)75 (43)67 (43)0.731
 Abdominal cavity55 (17)31 (18)24 (15)0.554
 Urinary tract71 (22)47 (27)24 (15)0.010a
 Bloodstream55 (17)17 (10)38 (24)0.010a
 Unknown7 (2)4 (2)3 (2)0.813
 Average plasma SP-D, ng/mL137 ± 25124 ± 20153 ± 220.001a
 Median (IQR) urinary NGAL, ng/mL501 (477, 560)480 (469, 496)561 (536, 611)0.001a
  1. aCompared with no AKI patients, P < 0.01