All this feeds into one striking statistic. After next year's election about a third of all new MPs will have been to fee-paying schools, compared with 13% of new arrivals when the Commons last underwent major change in 1997.
Most of this data is to be found in The Class of 2010, a report put together by the lobbying firm the Madano Partnership, based on work by academics from Plymouth University. The research suggests that relative to 1997, the number of new MPs from comprehensive schools will fall from 46% to about 30%; and that 17% of the new intake will come from grammar schools, despite only 5% of pupils attending such schools.
…They conclude: "There has been a marked increase in the number of winnable [seat] candidates who were educated at private or independent school, perhaps by as much as three times the 1997 figure."
Source: here