A considerable number of MPAs, mainly Unionist, subsequently left or were expelled from their respective parties.
Of UUP members, Jeffrey Donaldson joined the DUP in 2004 after a short spell as an Independent Unionist.
Of DUP members, Allister, Beattie, Calvert, Foster, Graham, Kane and McKee all later quit the party.
Seawright (who was expelled from the DUP) Beattie and Graham were subsequently re-elected under different 'Protestant' or 'Protestant Unionist' labels.
and Cushnahan of Alliance later became involved in Southern Irish politics and were elected for Fine Gael.