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Table 1 Characteristics of emergency department (ED) visits by elderly patients

From: Outcome of elderly emergency department patients hospitalised on weekends - a retrospective cohort study

  Week admission
(N = 2114)
Weekend admission
(N = 629)
Mean age (SD) 78.2 (7.8) 78.0 (7.5)
No. of male participants (%) 943 (44.6) 291 (46.3)
CCI, mean (SD)* 2.4 (2.1) 2.6 (2.3)
Unknown CCI (%) 6 (0.3) 5 (0.8)
Number of drugs, mean (SD) 7.0 (4.1) 6.8 (4.0)
Unknown medication use (%) 348 (16.4) 82 (13.0)
Time of presentation **
 Daytime (8 am – 5 pm) (%) 1356 (64.1) 341 (54.2)
 Evening (5 pm – 23 pm) (%) 602 (28.5) 211 (33.5)
 Night (23 pm – 8 am) (%) 156 (7.4) 77 (12.2)
Mode of presentation **
 General practitioner (%) 1628 (77.0) 437 (69.5)
 Ambulance (%) 181 (8.6) 87 (13.8)
 Specialist (%) 170 (8.0) 40 (6.3)
 Self-referral (%) 135 (6.4) 65 (10.3)
Seniority of first physician on ED**
 Medical student (%) 177 (6.3) 12 (1.4)
 Non-trainee resident (%) 883 (31.2) 271 (30.8)
 Trainee resident (%) 1561 (55.2) 538 (61.1)
 Medical specialist (%) 160 (5.7) 43 (4.9)
 Unknown (%) 45 (1.6) 17 (1.9)
Number of diagnostic tests, mean (SD)* 3.4 (1.9) 3.6 (2.0)
ED-LOS in minutes (IQR) 165 (130–204) 162 (129–201)
Hospital LOS in days (IQR) * 6 (2–12) 5 (2–11)
  1. SD standard deviation, CCI Charlson comorbidity index, ED emergency department, ED-LOS emergency department length of stay, LOS length of stay, IQR interquartile range
  2. P-values for week versus weekend admission: using the Chi-square test, unpaired t-test (normally distributed) or Mann-Whitney U test (not normally distributed). * = 0.001 < p < 0.05; ** = p < 0.001