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Table 3 Surgical subspecialty on weekdays and weekends

From: Seven-day services in surgery and the “weekend effect” at a Japanese teaching hospital: a retrospective cohort study

 Weekday (633 days)Weekend (290 days)Total (% of samples)P-value
      <.0001
Digestive surgery1998(88)281(12)2279(30.6) 
Orthopaedic surgery1469(86)237(14)1706(22.9) 
Obstetrics and gynaecology804(91)82(9)886(11.9) 
Urology520(96)23(4)543(7.3) 
Otorhinolaryngology327(64)180(36)507(6.8) 
Cardiovascular surgery397(91)38(9)435(5.8) 
Breast surgery276(89)34(11)310(4.2) 
Dentistry12(6)193(94)205(2.8) 
Plastic surgery24(12)178(88)202(2.7) 
Paediatric surgery99(51)94(49)193(2.6) 
Neurosurgery115(76)36(24)151(2) 
Othera15(60)10(40)25(0.3) 
  1. Statistical analyses were performed using the chi-square test
  2. Values are number (proportion)
  3. aOther includes Neurology, Internal medicine, Ophthalmology and Cardiology