In a statement published alongside the data, Condé Nast attributed its salary skew to its longstanding and male-dominated senior leadership team. The chairman of Condé Nast Britain, Nicholas Coleridge, for example, has held various roles across the executive team since 1991. Jonathan Newhouse has led Condé Nast International for over 30 years. The statement said that across three-quarters of its business, the company had not found evidence of an appreciable gender pay gap. Three-quarters of all Condé Nast employees are female, with the bottom two salary quartiles particularly dominated by women.

The disparity of wages that exist within most fashion businesses was further underscored by the figures produced by many brands and retailers. The middle market women’s wear brand Karen Millen pays women 49 percent less than men on a median hourly basis, meaning that, companywide, men’s median pay was double that of women. Women made up 84 percent of the company’s top positions, with a female C.E.O. and C.F.O., and the same proportion of men and women received bonuses, yet women’s median bonus pay was 96 percent lower than men’s.

In a statement, the company said that this was because the majority of its retail assistants and distribution center staff were women, and that the small percentage of male employees worked mostly in its head office.

“Our gender gap paints a misleading picture about our commitment to gender diversity and equality,” the statement read, adding that when head office roles were excluded, the gender pay gap dropped to 6 percent. It did not, however, address why so many head office roles were filled by men instead of women.