Patient characteristics by admission time, 2004/2005–2013/2014
| Admission time of the week | Weekday | Weekend* | Weekday-day | Weekday-night | Weekend-day* | Weekend-night* |
| 07:00 Monday– 18:59 Friday | 19:00 Friday– 06:59 Monday | 07:00–18:59 Monday–Friday | 19:00–06:59 Monday–Thursday | 07:00–18:59 Saturday and Sunday | 19:00–06:59 Friday–Sunday | |
| Admissions, n (%) | 164 729 (66.87%) | 81 621 (33.13%) | 101 725 (41.29%) | 63 004 (25.57%) | 33 409 (13.56%) | 48 212 (19.57%) |
| Age, mean (SD) | 58.26 (21.17) | 58.18 (21.82) | 58.84 (20.93) | 57.33 (21.53) | 59.91 (21.69) | 56.97 (21.84) |
| Gender, male (%) | 79 736 (48.40%) | 40 215 (49.27%) | 48 742 (47.92%) | 30 994 (49.19%) | 16 264 (48.68%) | 23 951 (49.68%) |
| Ethnicity, white (%) | 148 215 (89.98%) | 73 069 (89.52%) | 91 784 (90.23%) | 56 431 (89.57%) | 29 964 (89.69%) | 43 105 (89.41%) |
| Deprivation, most deprived quintile (%) | 29 403 (17.85%) | 14 973 (18.34%) | 17 694 (17.39%) | 11 709 (18.58%) | 5884 (17.61%) | 9089 (18.85%) |
| Diagnosis per spell, mean (SD) | 5.96 (4.20) | 6.10 (4.19) | 5.85 (4.20) | 6.13 (4.19) | 6.07 (4.22) | 6.12 (4.17) |
| Procedures per spell, mean (SD) | 1.47 (2.50) | 1.45 (2.54) | 1.46 (2.46) | 1.47 (2.56) | 1.47 (2.51) | 1.43 (2.55) |
| Previous emergency admission†, mean (SD) | 0.95 (2.03) | 1.01 (2.16) | 0.89 (1.94) | 1.04 (2.17) | 0.97 (2.06) | 1.03 (2.22) |
| Previous emergency admission‡, mean (SD) | 2.46 (2.64) | 2.60 (2.80) | 2.36 (2.54) | 2.60 (2.77) | 2.53 (2.67) | 2.64 (2.89) |
| Charlson Index, mean (SD) | 5.03 (8.14) | 5.10 (8.22) | 5.01 (8.10) | 5.08 (8.21) | 5.31 (8.34) | 4.96 (8.14) |
| Death in 30 days, n (%) | 9366 (5.69%) | 5180 (6.35%) | 5765 (5.67%) | 3601 (5.72%) | 2241 (6.71%) | 2939 (6.10%) |
| Death in 7 days, n (%) | 3965 (2.41%) | 2368 (2.90%) | 2319 (2.28%) | 1646 (2.61%) | 1016 (3.04%) | 1352 (2.80%) |
| Death in hospital, n (%) | 7373 (4.48%) | 4054 (4.97%) | 4525 (4.45%) | 2848 (4.52%) | 1764 (5.28%) | 2290 (4.75%) |
*Including public holidays.
†In 365 days prior to the admission date.
‡For those having at least one emergency admission in the last 365 days.