Canterbury - EEDI

EEDI Descriptive Data:

Year
- ED events per year have increased over time for both Māori (11.5% to 16.5%, 2006-2012) and non-Māori (13.1% to 14.9%, 2006-2012).

Gender
- The gender profile associated with all ED events was similar for Māori (53.7% males and 46.3% females) and non-Māori (52.0% males and 48.0% females).
Age
- A higher proportion of Māori ED events were seen in the younger age groups, compared to non-Māori, particularly those aged 0-4 years (17.2% versus 8.4%) and 15-24 years (22.6% versus 16.4%). In comparison, a higher proportion of non-Māori ED events were seen in older age groups, particularly those aged 65-74 years (9.0% and 4.3%) and those aged ≥75 (16.6% versus 2.2%).

NZDep06
- 49.4% of all Māori ED events were from the 3 most deprived deciles compared to 30.8% of non-Māori ED events.
- The highest proportion of Māori ED events were from decile 9 (21.8%) and the highest proportion of non-Māori ED events were from decile 4 (13.9%).
- The lowest proportion of Māori ED events came from decile 1 (3.5%) and the lowest proportion of non-Māori ED events were from decile 10 (4.8%).

Arrival mode
- 67.0% of Māori ED events arrived via self-presentation compared to 59.0% of non-Māori ED events.
- Non-Māori had a higher proportion of arrival into ED via ambulance, police and helicopter compared to Māori (38.9% versus 30.1%).

Referral type
- Non-Māori ED events had a higher proportion of general practitioner referral compared to Māori (14.9% versus 11.9%).
- 1.7% of both Māori and non-Māori ED events were via hospital transfer.
- Māori ED events had a higher proportion of self-referral compared to non-Māori (58.2% versus 47.8%).

Triage category
- Māori and non-Māori had very similar proportions of ED events triaged to be seen immediately (1.1% versus 1.0%).
- 10.0% of Māori ED events were triaged to be seen within 10 minutes compared to 11.9% of non-Māori.
- 48.5% of Māori ED events were triaged to be seen within 30 minutes compared to 49.7% of non-Māori ED events.
- A slightly higher proportion of Māori ED events were triaged to be seen within a longer timeframe compared to non-Māori. i.e. 60 minutes (35.4% versus 33.4%) and 120 minutes (5.0% versus 4.1%).

The average ED arrival to assessment time for Māori patients was 53 mins compared to 50 mins for non-Māori.
The ED LOS (Length of Stay) for Māori patients was 149 mins compared to 159 mins for non-Māori.
The ward LOS for Māori patients was 60 hours compared to 71 hours for non-Māori.
3% of both Māori and non-Māori patients encountered access block.
0.4% of Māori patients died in ED or within 10 days of ED discharge compared to 0.9% of non-Māori patients.
4% of Māori patients re-presented at ED within 72 hours of ED/ward discharge compared to 3% of non-Māori.
2% of both Māori and non-Māori patients had a hospital readmission within 72 hours of ED/ward discharge.

After controlling for year, gender, age at presentation, triage category, NZDep decile, and M3 Index score:

The odds of access block for Māori patients is 1.3 times the odds of access block for non-Māori patients.
The odds of ED re-presentation within 72 hours of ED/ward discharge for Māori patients is 1.0 times the odds of re-presentation for non-Māori patients.
The odds of hospital readmission within 72 hours of ED/ward discharge for Māori patients is 1.1 times the odds of readmission for non-Māori patients.
The odds of death for Māori patients in ED or within 10 days of ED discharge is 1.3 times the odds of death for non-Māori patients.