Dr Elliott said that some of the figures in the report were from as far back as 2017 as the research was cut off because of the UK leaving the EU.
She said Ireland should be the first EU country to develop a data strategy on equality and it should consider adding an all-island aspect to it.
"Since Brexit, Northern Ireland is no longer participating in European surveys or European data work," she told the PA news agency.
"There's now an absence of comparable data. This report is using data that concluded in 2017 because the data is no longer available to us.
"There's an opportunity with Ireland's equality data strategy to use that as a framework to have a conversation across the island about how we develop an all-island data infrastructure that will support comparable research."
We're running out of comparable all-island data post-Brexit – academic www.irishnews.com/news/norther... comments from Dr Iris Elliott of the Irish Human Rights & Equality Commission #Brexit #equalitydata #opendata