Wiktionary
vital statistic
n. A single important number derived from public health data or personal measurements.
Usage examples of "vital statistic".
Perhaps it was well for the passengers' peace of mind that only Chang and his engineer appreciated one vital statistic: the fully-charged batteries contained the energy of a large chemical bomb, now ticking away on the outside of the Tower.
Height, weight, hair and eye color, and every other vital statistic imaginable was shining brightly on the wall.
Bowie Cato had filled out and carefully reread each vital statistic.
If you want the papers I got from Rik, theyre filed among vital statistic files in my home town.