--- title: Emergency department patients seen on time by hospital and triage category, Australia resource: https://publicdata.au/d/au-ed-patients-seen-on-time/ publisher: Australian Institute of Health and Welfare licence: CC BY 4.0 licence_url: https://creativecommons.org/licenses/by/4.0/ version: 2026-10-03 rows: 21972 fields: 9 source: https://myhospitalsapi.aihw.gov.au/api/v1/measure-downloads/myh-ed source_sha256: 196e28ee35121da2afcfcd3f9bc25e32e30901f5012729d01ce42f7157ef01f6 language: en-AU operator: National Digital not_endorsed: true --- # Emergency department patients seen on time by hospital and triage category, Australia The share of emergency department patients seen within the recommended time for their triage category, for each public hospital, network and state each year since 2011-12, from AIHW MyHospitals. Published by Australian Institute of Health and Welfare under CC BY 4.0 and republished here in other formats, with cells typed and suppressed values made null. Australian Institute of Health and Welfare has not endorsed this site. Also called: ED waiting times by hospital, Emergency department patients seen on time, Hospital emergency wait times Australia, Triage category waiting times by hospital. ## Download Latest version, redirects to `https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/`: - csv: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.csv (2.3 MB) - xlsx: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.xlsx (853 KB) - json: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.json (5.9 MB) - parquet: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.parquet (101 KB) - sqlite: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.sqlite (3.7 MB) - duckdb: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.duckdb (700 KB) - ndjson: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.ndjson (5.8 MB) - arrow: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.arrow (476 KB) - csv.gz: https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.csv.gz (195 KB) Pinned version 2026-10-03: `https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/data.`. Dated versions never change. ## Query The query API returns only the rows you ask for, as JSON, NDJSON or CSV, from the same typed rows as the files. It needs no key. Rows: https://publicdata.au/api/v1/datasets/au-ed-patients-seen-on-time/rows. Counts and sums: https://publicdata.au/api/v1/datasets/au-ed-patients-seen-on-time/aggregate. - Rows: https://publicdata.au/api/v1/datasets/au-ed-patients-seen-on-time/rows?year=eq.2024%E2%80%9325&reporting_unit_type=eq.State&triage_category=eq.Urgent&limit=5 - Aggregate: https://publicdata.au/api/v1/datasets/au-ed-patients-seen-on-time/aggregate?group=reporting_unit&metric=avg.share_seen_on_time&year=eq.2024%E2%80%9325&reporting_unit_type=eq.State&triage_category=eq.Urgent Each filter is `field=operator.value` in the query string, and every filter must match. A number or date field compares as a number or date, and a text field compares as text. Values are case-sensitive except with `ilike`. Prefix `not.` to negate a filter, as `not.eq.value`. Operators: `eq.value`, `neq.value`, `gt.value`, `gte.value`, `lt.value`, `lte.value`, `like.*text*`, `ilike.*text*`, `in.(a,b,c)`, `is.null`. - `select`: Fields to return, comma-separated. Every field when absent. - `order`: `field.asc` or `field.desc`, comma-separated. The publisher's row order when absent. - `limit`: Rows per page, 1 to 10,000. 100 when absent. - `offset`: Rows to skip. The `next` URL in each answer sets it for you. - `group`: On `aggregate`, fields to group by, comma-separated. - `metric`: On `aggregate`, `count`, `sum.field`, `avg.field`, `min.field` or `max.field`, comma-separated. `count` when absent. - `format`: `json`, `ndjson` or `csv`. JSON carries the provenance header, and the others carry it in response headers. Without a version the API answers from the newest loaded version, and that answer changes when the publisher releases again. Put `versions//` before `rows` or `aggregate` for an answer that never changes. `/api/v1/datasets//versions` lists the loaded versions. The API allows 60 requests in 10 seconds from one address. Above that it answers 429 for 10 seconds with a `Retry-After` header, a `RateLimit-Policy` header and a JSON body that gives the limit. Every API answer carries the same `RateLimit-Policy`. A client should wait the `Retry-After` seconds, or read the files, which have no limit. OpenAPI for this dataset: https://publicdata.au/d/au-ed-patients-seen-on-time/openapi.json ## Explore Charts and dashboards in the browser: https://publicdata.au/d/au-ed-patients-seen-on-time/explore/. A dashboard can be shared as a link or embedded. ## Smaller files - by `state`: https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/by/state/index.json lists 9 files ## Fields | field | type | publisher's header | note | |---|---|---|---| | `reporting_unit` | string | Reporting unit | | | `reporting_unit_type` | string | Reporting unit type | | | `state` | string | State | | | `peer_group` | string | Peer group | | | `year` | string | Year | | | `triage_category` | string | Triage category | | | `presentations` | integer | Number of presentations | | | `share_seen_on_time` | number | Percentage of patients seen on time | The fraction of patients whose care began within the recommended time, 0.8 for 80 per cent. | | `peer_group_average` | number | Peer group average | | Key: `reporting_unit, reporting_unit_type, year, triage_category`. ## Versions - 2026-10-03: 21972 rows, 9 fields, sha256 196e28ee3512. https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/ Machine-readable: https://publicdata.au/d/au-ed-patients-seen-on-time/versions.json, https://publicdata.au/d/au-ed-patients-seen-on-time/changes.json, https://publicdata.au/d/au-ed-patients-seen-on-time/datapackage.json, https://publicdata.au/d/au-ed-patients-seen-on-time/schema.json, https://publicdata.au/d/au-ed-patients-seen-on-time/history.tar.zst ## Part of AIHW MyHospitals - [Hospitals, Local Hospital Networks and Primary Health Networks in MyHospitals, Australia](https://publicdata.au/d/au-hospitals-myhospitals/) - [Elective surgery waiting times by hospital and urgency category, Australia](https://publicdata.au/d/au-elective-surgery-waiting-times/) ## Same subject, other publishers - [People waiting and median waits in emergency departments, Queensland, live](https://publicdata.au/d/qld-emergency-department-waits-now/) (Qld) - [Emergency department busyness by day and hour, Queensland](https://publicdata.au/d/qld-emergency-department-busyness/) (Qld) - [Public dental waiting lists by clinic, Queensland, latest quarter](https://publicdata.au/d/qld-public-dental-waiting-lists/) (Qld) - [Elective surgery by urgency category and hospital, Queensland, September quarter 2025](https://publicdata.au/d/qld-elective-surgery-by-category/) (Qld) - [Public hospital emergency departments and minor injury clinics, Queensland, live list](https://publicdata.au/d/qld-emergency-department-facilities/) (Qld) - [Elective surgery by specialty and hospital, Queensland, September quarter 2025](https://publicdata.au/d/qld-elective-surgery-by-specialty/) (Qld) - [Public hospital locations, South Australia](https://publicdata.au/d/sa-public-hospitals/) (SA) - [Measles public exposure sites, Victoria](https://publicdata.au/d/vic-measles-exposure-sites/) (Vic) - [Private hospital locations, South Australia](https://publicdata.au/d/sa-private-hospitals/) (SA) - [Ambulance Victoria response times by council area, 2018-19](https://publicdata.au/d/vic-ambulance-response-times-by-lga/) (Vic) - [Ambulance Victoria response times by town and city, 2017-18](https://publicdata.au/d/vic-ambulance-response-times-by-town/) (Vic) ## Attribution and citation Based on Australian Institute of Health and Welfare material. Australian Institute of Health and Welfare, Australian Government, MyHospitals Data API, emergency department data extract, sourced 3 October 2026, https://myhospitalsapi.aihw.gov.au/, licensed under CC BY 4.0. The licence requires the publisher's attribution. We ask that you also name publicdata.au and link to the version you used. Plain text: Based on Australian Institute of Health and Welfare material. Australian Institute of Health and Welfare, Australian Government, MyHospitals Data API, emergency department data extract, sourced 3 October 2026, https://myhospitalsapi.aihw.gov.au/, licensed under CC BY 4.0. Serialised and versioned by National Digital at publicdata.au, https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/ Harvard: Australian Institute of Health and Welfare (2026) Emergency department patients seen on time by hospital and triage category, Australia, version 2026-10-03 [data set], CC BY 4.0, sourced 3 October 2026. Serialised and versioned by National Digital at publicdata.au. Available at: https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/ Markdown: Data: [AIHW MyHospitals](https://www.aihw.gov.au/copyright), Australian Institute of Health and Welfare, [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/), sourced 3 October 2026. Files: [publicdata.au](https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/) by [National Digital](https://nationaldigital.com.au/). ## Questions ### How do I download Emergency department patients seen on time by hospital and triage category as a CSV file? Open https://publicdata.au/d/au-ed-patients-seen-on-time/latest/data.csv. It redirects to the newest dated version, which is https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/data.csv today. The same path serves Excel, JSON, Parquet, SQLite, DuckDB, NDJSON, Arrow. A dated URL never changes, so use it when the file must stay the same. ### Can I open Emergency department patients seen on time by hospital and triage category in Excel? Yes. https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/data.xlsx is a workbook with the 21,972 rows on a records sheet, the field list on a second sheet and the provenance on a third. The CSV also opens in Excel. https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/data.csv.gz is the CSV at about a tenth of the size. ### What years does Emergency department patients seen on time by hospital and triage category cover? The current version covers the years since 2011. Each release from AIHW becomes a new dated version here, and earlier versions stay online. ### How often is Emergency department patients seen on time by hospital and triage category updated? AIHW releases it several times a year. This site checks the portal every week and adds a dated version when the file changes. ### Can I use Emergency department patients seen on time by hospital and triage category commercially? Yes. CC BY 4.0 allows commercial use, redistribution and derived works as long as the attribution is kept. The attribution string is in this page's side column and inside every file. ### Is this the official source for Emergency department patients seen on time by hospital and triage category? No. The publisher is Australian Institute of Health and Welfare, and its page is https://www.aihw.gov.au/copyright. This site republishes the publisher's file without changing its content. The original sits beside every version as source.xlsx with its SHA-256, so the two can be compared. ### How do I get only the rows for one state? Every version has one JSON file per value of state, 9 files in the current version, listed with row counts at https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/by/state/index.json. For example https://publicdata.au/d/au-ed-patients-seen-on-time/v/2026-10-03/by/state/nsw.json holds the 11,499 rows where state is NSW. ### What is in each row? One public hospital, Local Hospital Network, state or the nation, one financial year from 2011-12 and one triage category. It gives the number of emergency presentations and the share of patients whose care began within the recommended time for their triage category, beside the average for the hospital's peer group. ### What is on time? Care must begin within 2 minutes for resuscitation, 10 minutes for emergency, 30 minutes for urgent, 60 minutes for semi-urgent and 120 minutes for non-urgent patients. The share is a fraction, so 0.8 means 80 per cent. ### What do the blanks mean? The Institute writes <5 for a count under five and NP where the data did not meet its criteria or more than 10 per cent of times were missing. Those cells are null here with a suppressed flag. A dash, meaning no patients were reported, and Not peered are null. The Institute's file also marks with an asterisk the figures to interpret with caution, in a column with no heading, which is not carried here. ## What this site did to the data Cells were typed, headers were renamed to snake_case and the encoding was made UTF-8. Rows were left alone. Nothing is derived. The publisher's file is beside every version as `source.xlsx`. ## Improve this dataset This page is built from [register/au-ed-patients-seen-on-time.yaml](https://github.com/National-Digital/publicdata.au/blob/main/register/au-ed-patients-seen-on-time.yaml) on GitHub, and a fix to it is welcome as a pull request. https://publicdata.au/contribute/ explains how.