Table 1

Maternal characteristics by day of week of birth

Maternal age
Day of week of birth<2020–2425–2930–3435+
Monday123 (5.4%)410 (18.0%)576 (25.2%)718 (31.4%)456 (20.0%)
Tuesday127 (5.4%)385 (16.3%)606 (25.7%)769 (32.6%)471 (20.0%)
Wednesday92 (3.9%)410 (17.3%)623 (26.3%)713 (30.1%)529 (22.3%)
Thursday109 (4.5%)415 (17.0%)636 (26.0%)781 (32.0%)503 (20.6%)
Friday126 (5.1%)397 (16.1%)683 (27.7%)758 (30.7%)504 (20.4%)
Saturday110 (5.0%)362 (16.4%)598 (27.1%)685 (31.0%)452 (20.5%)
Sunday128 (5.4%)392 (16.5%)636 (26.7%)730 (30.7%)495 (20.8%)
 Age mother left full-time educationMaternal ethnicity (white=1)Normal delivery (yes=1)Mean length of hospital stay (hours)
16 or under17 or over
Monday549 (24.0%)1734 (76.0%)1937 (84.8%)1659 (72.7%)52.2
Tuesday590 (25.0%)1768 (75.0%)2011 (85.3%)1615 (68.5%)54.6
Wednesday510 (21.5%)1857 (78.5%)2048 (86.5%)1631 (68.9%)53.0
Thursday556 (22.7%)1888 (77.3%)2135 (87.4%)1613 (66.0%)52.1
Friday537 (21.8%)1931 (78.2%)2115 (85.7%)1628 (66.0%)52.5
Saturday516 (23.4%)1691 (76.6%)1935 (87.7%)1530 (69.3%)51.4
Sunday556 (23.4%)1825 (76.6%)2081 (87.4%)1682 (70.6%)52.1
  • Data (other than mean length of hospital stay) are n (%) or frequency (%).