Plenty has been written about a shortage of women in the newsroom.

Last December a study by Guardian journalist Kira Cochrane suggested that 78% of articles that appeared in British national dailies were written by men.

Last February a group of German journalists got together to complain that, in the German newspaper industry, just 2% of editors-in-chief were women.

The same month, the group VIDA: Women in Literary Arts published a study suggesting that the overwhelming majority of articles in major literary magazines had male authors.

Now, a fresh study has been published, which indicates that women are also being severely under-represented in op-ed writing as well. Poynter reports on a byline survery conducted by the OpEd Project, which suggests that although there have been significant improvements in the proportion of women authoring opinion articles, the subjects they write on still continue to be stereotypical female – food, family, furniture and fashion.