It is actual evidence, not anecdotal.
Anecdotal evidence would be that busybodies tend to die young because they go through life agonizing that somebody, somewhere, might be having fun.
http://en.wikipedia.org/wiki/Anecdotal_evidence
Anecdotal evidence
(2) Evidence, which may itself be true and verifiable, used to deduce a conclusion which does not follow from it, usually by generalizing from an insufficient amount of evidence. For example "my grandfather smoked like a chimney and died healthy in a car crash at the age of 99" does not disprove the proposition that "smoking markedly increases the probability of cancer and heart disease at a relatively early age". In this case, the evidence may itself be true, but does not warrant the conclusion