All I can say is...
The guys linked to above need to speak with the researchers in Cambridge.
When people quoting data conflict with the people collecting and analyzing the data I will go with the latter group of people.
That is why I never trust people who write articles based on stories written by other people who did the actual interviews with the people who did the research.
Interviews can be written in a manner misquoting the speaker. People referencing that interview twist answers, paraphrase quotes and lie by omission when they leave out information that does not support their agenda.
Chase the data back to the source and you often hear a different tale being told.