The ARCOS V dataset includes information on all new stroke and transient ischaemic attack (TIA), new hospitalised or non-hospitalised, both fatal and non-fatal cases in the Greater Auckland region aged ≥15 years from 1st September 2020 to 31st August 2021. ARCOS V data were collected to determine the one-year outcomes of stroke and TIA, in the greater Auckland Region in 2020-2021, and to assess the trends in stroke burden from 1981 to 2021. 



Baseline data were collected from DHBs medical records and included socio-demographics, history of the stroke, medical and neurological history, family history, risk factors, results of routine cardiovascular and neurological examinations, pre-morbid disability, level of dependency at discharge and a functional and self-care assessment. One-month health and recovery outcomes were collected for stroke cases by community-based research assistants either by phone or face-to-face contact. Follow-up data (including 12-month outcomes) were obtained from medical records by trained research nurses. 



Data capture was managed by Auckland University of Technology (AUT) and the Auckland DHBs and facilitated using REDCap99 (Research Electronic Data Capture) - a secure web-based application designed specifically for this purpose in a research study setting. AUT Information Communication Technology department manages and performs daily backups of the local REDCap installation, and appointed research data managers develop, support, and maintain the project's database structure and content. 



One objective of the HRC-funded research program that this study is part of, is to determine national and regional stroke and TIA incidence and mortality and their determinants. Using both ARCOS V data and IDI data will allow us to assess the validity of using a fully IDI-based assessment of stroke incidence in New Zealand (NZ). Although ARCOS V data can provide robust estimates for acute cerebrovascular disease burden for the Auckland region these findings cannot be reliably generalised to the rest of NZ due to differences in demographic factors such as age, ethnicity, SES and rurality. As funding constraints do not allow high-quality ARCOS V methodology to be applied to the whole of NZ, we will determine national estimates by combining ARCOS V data with IDI data. The IDI contains individual-level information on hospitalised stroke and TIA for all NZ residents. However, in the IDI, hospital discharge records are incomplete for stroke/TIA as a proportion of especially TIA patients are not routinely admitted and outpatient clinic diagnoses are currently not coded/captured in NZ. We will link ARCOS V data with IDI data, validate IDI-derived incidence and mortality estimates (for the same geographical area and time-period) and subsequently refine our national and regional estimates based on demographic and risk factor characteristics of stroke and TIA patients for all NZ residents across all DHBs.

A dataset containing information on student participation in programmes offered at the Centre of Innovation and Entrepreneurship at the University of Auckland

This table holds address notifications data from ACC. One row every time ACC receives a notification that the client has changed address.

One row per claim accepted claim. Claim attributes are the latest recorded by ACC.

Older format that was replaced June 2021. One row per claim accepted claim, going back to 1994. Claim attributes are the latest recorded by ACC. Includes client information.

One row per person who has had an accepted claim with ACC. Demographic information is the latest recorded by ACC.

This table holds the medical diagnostic codes for the injuries described in the claim table. It includes the ICD9 and ICD10 medical diagnostic codes and descriptions as well as information on the related injury diagnosis/es.

Name	Agency
ARCOS	University of Auckland
Centre of Innovation and Entrepreneurship Participation	University of Auckland
NZ Rugby Representatives	NZ Rugby

Name	Collection / Agency
Client acc_clean.clients	IDI ACC Injury Claims data Accident Compensation Corporation
Claims acc_clean.claims	IDI ACC Injury Claims data Accident Compensation Corporation
Claims historic acc_clean.claims_historic	IDI ACC Injury Claims data Accident Compensation Corporation
Medical codes acc_clean.medical_codes	IDI ACC Injury Claims data Accident Compensation Corporation
Addresses acc_clean.addresses	IDI ACC Injury Claims data Accident Compensation Corporation

Name	Dataset / Collection
1st_readmit_date 1st_readmit_date	IDI UoO REGIONS care National Stroke Register
1st_recurrent_stroke_date 1st_recurrent_stroke_date	IDI UoO REGIONS care National Stroke Register
ABGROUP abgroup	IDI MOE PISA 2009 IDI MOE PROGRAMME FOR INTERNATIONAL STUDENT ASSESSMENT (PISA) 2009
absentnd absentnd	msd ccs ccsr 202107 IDI MSD Benefit Dynamics Data and Income Support Expenditure data
absentnd absentnd	msd ccs ccsr 202212 IDI MSD Benefit Dynamics Data and Income Support Expenditure data
absentnd absentnd	msd ccs ccsr 202309 IDI MSD Benefit Dynamics Data and Income Support Expenditure data
academic year academic_year	clean read moe.moe school decile pricing IDI MOE Early Childhood Education and Compulsory Schooling data
academic year academic_year	sla ird loan transfer 202212 IDI SLA IRD Consolidated Data Extract data
acc acc	msd income 202107 IDI MSD Benefit Dynamics Data and Income Support Expenditure data
acc acc	msd income 202212 IDI MSD Benefit Dynamics Data and Income Support Expenditure data

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