Research Article

Growth Differentiation Factor-15 Is a Predictor of Mortality in Critically Ill Patients with Sepsis

Table 1

Baseline patient characteristics and GDF-15 serum measurements.

ParameterAll patientsSepsisNonsepsis

Number21914673
Sex (male/female)134/8586/6048/25n.s.
Age median, (range) [years]64 (18–90)65 (20–90)61 (18–85)n.s.
Charlson comorbidity index, median (range)2 (0–9)2 (0–9)2 (0–6)n.s.
APACHE II score, median (range)18 (2–43)19 (4–43)13.5 (2–33)<0.001
SOFA score, median (range)9 (0–19)9.5 (2–19)7 (0–17)0.002
Mechanical ventilation, n (%)143 (65.3)97 (66.4)46 (63)n.s.
Ventilation time, median (range) [h]116 (0–3628)123.5 (0–2966)66 (0–3628)n.s.
Vasopressor demand, n (%)200 (91.3)132 (90.4)68 (93.2)n.s.
ICU days, median (range)7 (1–137)6 (1–45)8.5 (1–137)0.005
Death during ICU, n (%)49 (22.4)40 (27.4)9 (12.3)0.012
Overall mortality, n (%)89 (40.6)67 (45.9)22 (30.1)0.025
GDF-15 day 1, median (range) [pg/mL]5753 (22.8–25,316)7410 (22.8–25,316)3490 (415.8–24,336)<0.001

For quantitative variables, median and range (in parenthesis) are given. GDF-15: growth differentiation factor-15; APACHE: acute physiology and chronic health evaluation; SOFA: sequential organ failure assessment. Significance between sepsis and nonsepsis patients was assessed using the Mann–Whitney U test or chi-squared test, respectively.