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Table 1 Baseline characteristics.

From: Intensive care unit length of stay beyond the first week and 1-year mortality - dutch single centre study in unselected critically ill patients describing long-term survival according to length of stay in conjunction with age

   Age at admission
  Total population Under 65 65-75 75-80 80 and over
N 7165 3806 1938 826 595
Age (years) 64 (52-73) 53 (43-60) 70 (67-72) 77 (76-79) 83 (81-85)
Gender (male) 4514 (63%) 2424 (63.7%) 1254 (64.7%) 505 (61.1%) 331 (55.6%)
ICU length of stay (days) 1 (1-3) 1 (1-4) 1 (1-2) 1 (1-2) 1 (1-3)
Elective admission 3908 (54.5%) 1764 (46.3%) 1265 (65.3%) 547 (66.2%) 332 (55.8%)
APACHE IV score 46 (33-66) 40 (27-62) 49 (38-65) 52 (41-69) 58 (46-77)
Total maximum SOFA score* 5 (2-9) 5 (2-9) 5 (2-8) 5 (3-8) 6 (3-10)
  1. Continuous variables are presented as median (interquartile range), categorical variables as n (percentage); * Sum of highest SOFA component scores during admission. ICU Intensive Care Unit; LoS Length of Stay; APACHE IV Acute Physiology And Chronic Health Evaluation fourth edition; SOFA Sequential Organ Failure Assessment;