This is compared to the traditional six-monthly model that the regional press industry has followed for several decades.
The move will bring the regional titles in line with the group’s national titles’ reporting dates.
All of the group’s key regional news brands have launched new websites and mobile sites in recent months and new e-editions for tablet devices will be introduced throughout the summer – the Birmingham Mail e-edition launched two weeks ago.
Trinity Mirror recently reorganised its national sales team to form NASa (National Advertising Sales Agency) which is developing new print and online packages for advertisers from across the entire group portfolio.
Mark Hollinshead (pictured), Chief Operating Officer of Trinity Mirror, said: "In a multi-channel environment our clients require robust and transparent audience data on all of our news brands – in print, online, mobile and e-editions – delivered in a consistent format and on a far more regular basis.”
May’s ABC period will be published on 7 June 2013.
Titles include in the monthly ABC reporting:
Manchester Evening News
Birmingham Mail
Liverpool Echo
Newcastle Chronicle
South Wales Echo
Teesside Gazette
Coventry Telegraph
Daily Post Wales
Sunday Sun
Sunday Mercury
Wales on Sunday