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Table 1 Overall and weekday-specific patient characteristics

From: Weekends affect mortality risk and chance of discharge in critically ill patients: a retrospective study in the Austrian registry for intensive care

  Weekday of admission
Variable Total Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Patient admissions, n 151,268 24,367 25,866 25,810 25,312 24,075 13,279 12,559
Age (years), median (IQR) 68 (54–77) 68 (55–77) 67 (55–77) 67 (55–76) 67 (55–76) 68 (55–77) 67 (52–78) 68 (52–78)
Male sex, n (%) 86,564 (57.2%) 13,920 (57.1%) 14,778 (57.1%) 14,648 (56.8%) 14,456 (57.1%) 13,807 (57.4%) 7745 (58.3%) 7210 (57.4%)
SAPS 3, median (IQR) 44 (34–56) 43 (34–55) 42 (33–54) 42 (33–54) 42 (33–54) 43 (34–55) 48 (37–61) 48 (37–61)
TISS 28 score, median (IQR)
 Total, per patient 73 (46–165) 70 (46–147) 69 (46–145) 68 (45–155) 69 (46–168) 84 (48–169) 89 (44–206) 81 (42–192)
 On admission day 29 (23–35) 29 (23–35) 29 (23–35) 29 (23–35) 29 (23–35) 29 (23–35) 29 (21–36) 28 (21–36)
ICU LOS (days), median (IQR) 3 (2–6) 3 (2–5) 3 (2–5) 3 (2–6) 3 (2–6) 3 (2–6) 3 (2–7) 3 (2–6)
LOS before ICU admission > 2 days, n (%) 51451 (34.5%) 9491 (39.5%) 8322 (32.7%) 9308 (36.7%) 9144 (36.7%) 9081 (38.4%) 3028 (23.0%) 3077 (24.7%)
Type of admission, n (%)
 Medical 55,356 (36.6%) 8484 (34.8%) 8505 (32.9%) 8713 (33.8%) 8401 (33.2%) 8082 (33.6%) 6682 (50.3%) 6489 (51.7%)
 Unscheduled surgery 23,180 (15.3%) 3239 (13.3%) 3452 (13.4%) 3480 (13.5%) 3609 (14.3%) 3802 (15.8%) 2968 (22.4%) 2630 (20.9%)
 Scheduled surgery 49,237 (32.6%) 8990 (36.9%) 10,063 (38.9%) 9750 (37.8%) 9469 (37.4%) 8399 (34.9%) 1329 (10.0%) 1237 (9.9%)
 Unspecified surgery 16,287 (10.8%) 2541 (10.4%) 2707 (10.5%) 2696 (10.5%) 2652 (10.5%) 2618 (10.9%) 1561 (11.8%) 1512 (12.0%)
 Not available 7208 (4.8%) 1113 (4.6%) 1139 (4.4%) 1171 (4.5%) 1181 (4.7%) 1174 (4.9%) 739 (5.6%) 691 (5.5%)
ICU mortality, n (%) 13,887 (9.2%) 2143 (8.8%) 2118 (8.2%) 2073 (8.0%) 1991 (7.9%) 2134 (8.9%) 1740 (13.1%) 1688 (13.4%)
Hospital mortality, n (%) 20,537 (13.7%) 3173 (13.2%) 3137 (12.3%) 3159 (12.4%) 3037 (12.1%) 3209 (13.5%) 2423 (18.5%) 2399 (19.4%)
  1. SAPS Simplified Acute Physiology Score, TISS Therapeutic Intervention Scoring System, LOS length of stay