Bill Lambert (Letters, March 30) is entitled to his views on abortion but not to disseminate antiabortion misinformation.
In the quoted 2008 University of Otago study, author David Fergusson states: ‘‘Specifically, the results do not support strong prolife positions that claim that abortion has large and devastating effects on the mental health of women.’’
The quoted 2011 review by Patricia Coleman has been superseded by a more comprehensive review by the National Collaborating Centre for Mental Health, London (2011). Taking into account the broad range of studies and their limitations, the review concluded that, on the best evidence available, the rates of mental health problems for women with an unwanted pregnancy were the same whether they had an abortion or gave birth.
With regard to breast cancer, this is the commonest cancer, affecting about one in 10 New Zealand women. Abortion is the commonest gynaecological procedure, affecting about one in four New Zealand women.
It is therefore no surprise the two are sometimes associated but no cause and effect has ever been demonstrated.
This consensus is supported by major medical bodies, including the World Health Organisation, the US National Cancer Institute and the American Cancer Society. MARGARET SPARROW