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Table 3 Generalised linear model examining independent impacts of calendar events on mean numbers of assault presentations per night to emergency department services in England

From: Nighttime assaults: using a national emergency department monitoring system to predict occurrence, target prevention and plan services

Variable Slope (B) 95%CIs P
Months January −31.22 −44.88 −17.56 <0.001
  February 13.64 −0.69 27.98 0.062
  March 6.14 −7.76 20.03 0.387
  April 41.02 27.18 54.86 <0.001
  May 52.44 38.61 66.27 <0.001
  June 46.99 33.04 60.93 <0.001
  July 51.03 37.35 64.70 <0.001
  August 59.88 45.53 74.24 <0.001
  September 36.54 22.75 50.32 <0.001
  October 31.11 17.32 44.90 <0.001
  November 6.43 −7.47 20.34 0.365
  December (Ref)     
Weekends & Fri-Sat 303.13 296.84 309.42 <0.001
Holidays Bank Holiday Eves Sun-Thur 242.74 221.55 263.94 <0.001
  New Year’s Eve Sun-Thur 970.35 904.72 1035.98 <0.001
  Bank Holiday Eves Fri-Sat 275.85 183.57 368.13 <0.001
  New Year’s Eve Fri-Sat 1107.85 1015.57 1200.13 <0.001
  Sun-Thur (Ref)     
iSporting FA Cup final 53.62 −0.45 107.68 0.052
Events Six Nations Rugby 7.65 −18.41 33.72 0.565
  World Cup Football England 298.05 251.10 344.99 <0.001
  Olympics −38.07 −62.70 −13.44 0.002
  UEFA Champions final 32.03 −21.86 85.92 0.244
iCelebrations St Patrick's day 65.38 11.49 119.26 0.017
  Halloween 191.99 138.10 245.88 <0.001
  Valentine's day −12.61 −68.61 43.40 0.659
  Guy Fawkes night 96.37 42.50 150.24 <0.001
  St George's day 7.45 −46.43 61.33 0.786
  1. i Sporting events and celebrations are all entered into the generalised linear model as separate binary variables. Reference categories have been omitted. Data cover the time period 31st March 2008 to 30th March 2011 (see Methods). 95%CI = 95% confidence intervals. Full details of calendar events, sporting events and celebrations are given in Table 1.