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Table 3 Site-specific model estimates of the proportion of ED visits made by Aboriginal people that had an accurate recording of Aboriginal statusb

From: Can a continuous quality improvement program create culturally safe emergency departments for Aboriginal people in Australia? A multiple baseline study

Site-specific model estimates
ED Parameter Estimate (log-odds) Odds ratio 95% CI P-value
1a
   Pre-intervention slope 0.267 1.31 [1.21, 1.41] < 0.001
   Change in slope −0.197 0.82 [0.64, 1.06] 0.124
   Intervention slope 0.069 1.07 [0.84, 1.36] 0.572
   Change in intercept 0.004 1.00 [0.75, 1.34] 0.977
2
   Pre-intervention slope 0.172 1.19 [1.12, 1.25] < 0.001
   Change in slope −0.001 1.00 [0.86, 1.16] 0.992
   Intervention slope 0.171 1.19 [1.04, 1.36] 0.013
   Change in intercept −0.175 0.84 [0.70, 1.00] 0.054
3a
   Pre-intervention slope 0.346 1.41 [1.31, 1.52] < 0.001
   Change in slope −0.080 0.92 [0.78, 1.09] 0.353
   Intervention slope 0.266 1.30 [1.12, 1.52] < 0.001
   Change in intercept −0.137 0.87 [0.70, 1.09] 0.231
4a
   Pre-intervention slope 0.112 1.12 [1.01, 1.24] 0.028
   Change in slope 0.273 1.31 [1.12, 1.54] < 0.001
   Intervention slope 0.385 1.47 [1.30, 1.66] < 0.001
   Change in intercept 0.115 1.12 [0.90, 1.41] 0.316
5
   Pre-intervention slope −0.070 0.93 [0.89, 0.98] 0.003
   Change in slope 0.139 1.15 [1.02, 1.29] 0.020
   Intervention slope 0.068 1.07 [0.96, 1.19] 0.210
   Change in intercept 0.191 1.21 [1.05, 1.40] 0.009
6a
   Pre-intervention slope 0.219 1.25 [1.12, 1.39] < 0.001
   Change in slope −0.209 0.81 [0.60, 1.10] 0.179
   Intervention slope 0.011 1.01 [0.76, 1.34] 0.940
   Change in intercept 0.208 1.23 [0.85, 1.79] 0.274
7a
   Pre-intervention slope 0.244 1.28 [1.12, 1.46] < 0.001
   Change in slope 0.042 1.04 [0.86, 1.26] 0.658
   Intervention slope 0.286 1.33 [1.17, 1.52] < 0.001
   Change in intercept − 0.033 0.97 [0.73, 1.27] 0.816
8a
   Pre-intervention slope −0.054 0.95 [0.72, 1.25] 0.701
   Change in slope 0.302 1.35 [0.95, 1.92] 0.093
   Intervention slope 0.248 1.28 [1.02, 1.60] 0.029
   Change in intercept −0.024 0.98 [0.73, 1.31] 0.875
  1. aOverdispersion accounted for by including dispersion parameter in analysis
  2. bSource: Admitted Patient, Emergency Department Attendance and Deaths Register, NSW Ministry of Health SAPHaRI
  3. The bold figures indicate a statiscally significant increase in the trend of accurate recording of Aboriginality from baseline to the intervention period