Fame boosts the risk of early death for rock stars but the claim that the peril is greatest at the age of 27 is false, according to a study published by the British Medical Journal.

The theory of the “27 Club” spread earlier this year when Amy Winehouse joined Jim Morrison, Kurt Cobain and Brian Jones and other musicians who succumbed to the rock ‘n’ roll lifestyle while in their 27th year.

Health statisticians led by Adrian Barnett of the Queensland University of Technology in Australia put the “27 Club” hypothesis to the test.

They compiled a data base of 1,046 musicians – solo artists and band members – who had a No. 1 album in the British charts between 1956 and 2007, a net that included balladeers, pop singers, R&B and heavy metal.

The first No. 1 was Frank Sinatra’s Songs for Swinging Lovers! on July 28, 1956, and the last was Leona Lewis’ Spirit on November 18, 2007.

During the period under study, 71 of the musicians died, equivalent to seven percent of the sample.

But there was no peak at all in deaths at the age of 27. On the other hand, musicians in their 20s and 30s were two to three times likelier to die prematurely than the general British population.

“The 27 Club is unlikely to be a real phenomenon,” says the paper. “Fame may increase the risk of death among musicians, but this risk is not limited to age 27.”

Historically, the big risk period for rock ‘n’ roll fame appears to be the 1970s and early 80s, the researchers say.

After that, the number of deaths among the chart-toppers fell sharply. Indeed, there was a period in the late 80s when there were no mortalities at all.

Why this is so is unclear – it could be that treatment for drug overdoses and addiction improved, and thus saved musicians in danger.

The “27 Club” gained currency with Winehouse’s death in July, prompting the explanation that musicians often become famous in their early 20s and their risk-taking peaks four to five years later.

A more insidious argument was that musicians craving immortality subconsciously became bigger risk-takers, or even committed suicide, in order to join rock’s dead elite.

Faithful to the principles of scientific rigour, the authors of the study acknowledge that the data trawl has some flaws.

Three of the “27 Club” (Jimi Hendrix, Janis Joplin and Jim Morrison) did not have a No. 1 album in Britain and were thus excluded.

Kermit the Frog also had a No. 1 at this time with the Muppets.

So in an act of statistical fairness, the study included the mortality rate among the actors who played their parts.

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