Ms Armstrong said it was further proof more needed to be done to combat levels of females in public life.
“It is disappointing to see the number of females on public boards as public appointments is below the levels needed for gender equality. There has undoubtedly been positive work done to widen female participation in public life, create the necessary support networks to address and overcome bias, and challenge unconsciously discriminatory culture and practice in organisations.
“But public bodies need to take their job seriously and ensure more is done. Alliance is leading the way on this issue in politics – only last week we announced our Westminster candidates, with a natural 50/50 gender split. That is not due to quotas but rather creating the positive conditions in which women feel comfortable coming forward and standing for election. That same situation needs to happen in other areas of public life.”