Table 2

Number of elective procedures, crude mortality rates and adjusted odds of 30-day death by day of the week by consultant seniority during the study period

MondayTuesdayWednesdayThursdayFridaySaturdaySunday
Number of procedures per day of the week, N (%)724 541 (18.4)16 465 (20.8)799 260 (20.3)786 919 (20.0)28 681 (16.0)24 672 (3.2)9505 (1.0)
Proportion of procedures by consultant seniority, %
Junior12.011.712.312.215.513.312.1
Middle45.544.645.045.046.148.545.5
Senior42.53.742.742.838.438.242.4
Crude mortality rate, %, and number of deaths (N) by consultant seniority
Junior0.56 (483)0.66 (629)0.66 (648)0.79 (759)0.78 (760)0.66 (109)1.01 (60)
Middle0.55 (1798)0.62 (2261)0.69 (2458)0.70 (2474)0.84 (2415)0.69 (414)0.78 (164)
Senior0.56 (1705)0.61 (2157)0.66 (2241)0.67 (2268)0.85 (2049)0.81 (383)0.83 (174)
Adjusted odds of 30 day death, OR (95% CI)
Junior vs senior10.98 (0.90 to 1.08)0.96 (0.92 to 0.99)0.98 (0.91 to 0.99)0.90 (0.86 to 0.97)0.89 (0.85 to 0.99)0.95 (0.90 to 0.99)
Middle vs senior10.99(0.93 to 1.05)0.98 (0.92 to 1.05)1.00 (0.93 to 1.07)0.98 (0.94 to 0.99)0.95 (0.90 to 1.00)0.98 (0.93 to 1.01)
Average number of procedures per consultant per year
Mean161717161453
Median5555522
IQR (Q1–Q3)(2–16)(2–17)(2–17)(2–15)(1–15)(1–5)(1–3)
Consultant experience in years, median±SD8.4±4.38.5±4.38.4±4.38.5±4.37.9±4.48.0±4.38.3±4.3
  • The annual number of procedures carried out by hospital consultants is a highly skewed distribution, so the median and IQRs are given. Consultants’ experience is averaged over the accumulated years since registration in the General Medical Council specialist register (1996).

  • NHS, National Health Service.