vital statistics vs statistic

vital statistics and statistic both are nouns.

Word	Noun	Adjective	Verb	Adverb
vital statistics	Yes	No	No	No
statistic	Yes	No	No	No

As nouns, statistic is a hypernym of vital statistics; that is, statistic is a word with a broader meaning than vital statistics:

vital statistics: data relating to births and deaths and health and diseases and marriages
statistic: a datum that can be represented numerically

vital statistics (noun)	statistic (noun)
data relating to births and deaths and health and diseases and marriages	a datum that can be represented numerically