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Table 2 Adjusted odds ratios for inappropriate attendances

From: Who uses emergency departments inappropriately and when - a national cross-sectional study using a monitoring data system

  Adjusted odds ratio 95% confidence interval P
Lower Upper
Logistic regression A a
Gender Male (Ref) 1.00 - -  
  Female 0.95 0.95 0.95 <0.001
IMD quintile Least deprived (Ref) 1.00 - -  
Fourth most deprived 0.99 0.98 0.99 <0.001
Third most deprived 0.98 0.97 0.98 <0.001
  Second most deprived 0.96 0.96 0.97 <0.001
  Most deprived 0.89 0.89 0.90 <0.001
Logistic regression B b
Month June (Ref) 1.00 - -  
July 1.04 1.04 1.05 <0.001
August 1.04 1.03 1.05 <0.001
September 1.01 1.00 1.01 NS
October 0.99 0.98 0.99 <0.01
November 0.98 0.97 0.98 <0.001
December 0.97 0.96 0.98 <0.001
  January 0.97 0.96 0.98 <0.001
  February 0.98 0.97 0.99 <0.001
  March 0.99 0.99 1.00 NS
  April 0.99 0.98 1.00 <0.05
  May 0.97 0.96 0.97 <0.001
Weekday Wednesday (Ref) 1.00 - -  
Thursday 0.99 0.99 1.00 <0.001
Friday 0.97 0.96 0.98 <0.001
Saturday 1.10 1.09 1.11 <0.001
  Sunday 1.09 1.09 1.10 <0.001
  Monday 1.02 1.01 1.03 <0.001
  Tuesday 1.00 0.99 1.01 NS
Special Periods Bank Holiday 1.13 1.12 1.14 <0.001
Christmas Period 0.97 0.94 0.99 <0.01
  1. Two separate logistic regression models were used. aVariables controlled for in regression A were gender, deprivation and age (adjusted odds ratio for year of age is included in Figure 1). bVariables controlled for in regression B were month, weekday, hour, bank holidays and Christmas period (AOR for hour is included in Figure 2). IMD, Index of Multiple Deprivation.