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. 2015 Nov 2;5:34. doi: 10.1186/s13613-015-0077-5

Table 1.

Patient characteristics

Characteristics Patients who did not receive bolus infusion of hydrocortisone (N = 5447) Patients who received bolus infusion of hydrocortisone (N = 962) P value Total cohort (N = 6409)
Age (years, median [IQR]) 63 [51–73] 65 [55–74] <0.001 63 [52–73]
Male gender [no (%)] 3431 (63.0) 571 (59.4) 0.035 4002 (62.4)
BMI (kg/m2, median [IQR]) 25 [23–28] 25 [23–29] 0.968 25 [23–28]
Admission diagnosis [no (%)] <0.001
 Non-surgical 2159 (39.6) 542 (56.3) 2701 (42.1)
 Emergency surgery 993 (18.2) 200 (20.8) 1193 (18.6)
 Elective surgery 2295 (42.1) 220 (22.9) 2515 (39.2)
History of diabetes [no (%)]
 Diabetes 550 (14.7) 102 (16.5) 0.281 652 (15.0)
 Non diabetes 3188 (85.3) 517 (83.5) 3705 (85.0)
 Missing values 1709 343 2052
APACHE II scores (median [IQR]) 18 [14–24} 24 [19–30] <0.001 19 [14–25]
SAPS II score 40 [31–52] 55 [44–67] <0.001 42 [32–54]
ICU LOS (days, median [IQR]) 2 [1–4] 6 [3–12] <0.001 3 [2–5]
Hospital LOS (days, median [IQR]) 10 [6–20] 16 [8–36] <0.001 11 [6–22]
ICU mortality [no (%)] 658 (12.1) 306 (31.8) <0.001 961 (15.0)
Hospital mortality [no (%)] 944 (17.3) 391 (40.6) <0.001 1335 (20.8)

APACHE acute physiology and chronic health evaluation, BMI body mass index, ICU intensive care unit, IQR interquartile range, LOS length of stay