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Table 5 Difference in weekend and weekday length of stay for the top 3 DRGs (by volume) of the top 5 admitting disciplines

From: Exploring if day and time of admission is associated with average length of stay among inpatients from a tertiary hospital in Singapore: an analytic study based on routine admission data

  n Crude ALOS Diff in ALOS (weekend – weekday) p-value
General Medicine     
DRG: 177 Chronic Obstructive Airways Disease 517 4.59 0.33 0.332
DRG: 170 Respiratory Infections/Inflamns Age>54 W CC 364 8.66 0.07 0.933
DRG: 889 Poisoning/Toxic Effects of Drugs Age<60 W/O CC 220 2.40 0.46 0.008
General Surgery     
DRG: 330 Other Gastroscopy for Major Digestive Disease W/O CC 259 2.73 0.87 <0.001
DRG: 318 Anal & Stomal Procedures W/O CC 214 1.78 0.17 0.176
DRG: 314 Appendectomy W/O Complicated Principal Diagnosis 213 2.66 0.21 0.187
Orthopaedics     
DRG: 455 Medical Back Problems Age<75 W/O CC 323 2.77 0.1 0.624
DRG: 420 Lower Extremity&Humerus Procs Exc Hip, Foot, Femur Age<60 W/O CC 199 3.60 -0.34 0.38
DRG: 432 Hand or Wrist Procedures Exc Major Joint 177 1.92 0.07 0.679
Respiratory     
DRG: 177 Chronic Obstructive Airways Disease 319 4.18 0.68 0.072
DRG: 170 Respiratory Infections/Inflamns Age>54 W CC 184 8.20 1.61 0.195
DRG: 171 Respiratory Infections/Inflamns (Age>54 W/O CC) or (Age<55 W CC) 127 5.33 -1.29 0.069
Neurology     
DRG: 37 Cerebrovascular Disorders Except TIA W CC 473 9.89 0.83 0.477
DRG: 38 Cerebrovascular Disorders Except TIA W/O CC 443 4.70 1.07 0.025
DRG: 47 Seizure Age<65 W/O CC 206 2.46 0.47 0.027
  1. * note: difference for weekend versus weekday admission, adjusted for sex, age group, type and source of admission, admission time and admission on eve of public holiday