The phrase "a common age" is correct and usable in written English.
It can be used to refer to an age that is frequently encountered or typical among a certain group of people.
Example: "At a common age of 18, many students graduate from high school and prepare for college."
Alternatives: "a typical age" or "a prevalent age".
That is a common age range used by the UN's Population Division and China's own Statistical Yearbook.
Late adolescence is a common age for onset of schizophrenia, and as Lisa got older, the voices grew more tormenting, threatening to hurt her.
They were 6 years old, Elif explained, a common age for Turkish boys to be circumcised; the costumes were a treat before the next morning's rite of passage.
The intention was to lay down specific commitments to coordinate euro-zone economies — a common basis for corporate taxes for instance, or a common age for retirement — intended to unify policies across the region while raising tax revenue and reducing spending.
All flows are discounted to a common age (60) using the same discount factor (d, 3% in our case).
The stand age component of Eq. (1) can be used to adjust any outerwood density measurement to a common age of 40 years.
Lumbar disc degeneration (LDD) is a common, age-related trait: 1 over a third of middle aged women have at least one degenerate disc.
Later this year, with the support of Dow Corning, the CVDW hopes to begin the production and distribution of 50,000 pairs to China, India and Indonesia.User-adjusted glasses could also help with eye conditions besides myopia for example presbyopia, a common age-related condition that diminishes the ability to focus on nearby objects, and thus to be able to read.
Cataract is a common age-related condition that is caused by progressive clouding of the normally clear lens.
Osteoarthritis of the knee (KOA) is a common, age-related, joint disorder associated with loss of articular cartilage, osteophyte formation, subchodral bone change and synovitis.
Genentech said Monday that its experimental drug for a common age-related eye disease maintained or improved vision in about 95% of patients participating in a late-stage study.
