The phrase "attained at age" is correct and usable in written English.
It can be used to indicate the age at which someone achieved a certain milestone or accomplishment.
Example: "She attained her PhD at age 30, marking a significant achievement in her academic career."
Alternatives: "achieved at age" or "reached at age".
Remember that the highest value of (xi ^m) is attained at age 18, while the highest values of (xi ^h) are concentrated in the first years of life.
Educational level attained at age 26 years was categorized into five groups: (1) degree or higher; (2) A levels, usually attained at age 18 years, or their equivalents; (3) O levels, usually attained at age 16 years, or their equivalents; (4) certificate of secondary education, clerical course, or equivalent; and (5) none.
Educational level at age 26 was categorised into five groups: (i) degree or higher; (ii) A levels, usually attained at age 18 years, or their equivalents; (iii) O levels, usually attained at age 16, or their equivalents; (iv) certificate of secondary education, clerical course, or equivalent and (v) none.
Highest level of educational attainment by age 26 years was categorized into three groups: no qualifications, lower level up to UK General Certificate of Education-Ordinary level (usually attained at age 16 years), and UK General Certificate of Education-Advanced level (usually attained at age 18 years) or higher.
Educational level attained was recorded at age 26 and categorised into five groups: degree or higher; A levels, usually attained at age 18, or their equivalents; O levels, usually attained at age 16, or their equivalents; CSE, clerical course, or equivalent; none.
In this cohort of children from 13 communities across Southern California, traffic-related air pollution exerted a significant effect on BMI growth and BMI level attained at age 10.
The fastest swimming speeds were attained at the age of ~22-28 ~22-28considering all distances from 5 km to 25 km.
Sexual maturity is attained at the age of four to five years.
As final adult height is usually attained at the age of 18 19 years, comparison of army conscripts with adult GCT patients is reasonable with respect to height.
The changes in height of the developing child can be thought of in two different ways: the height attained at successive ages and the increments in height from one age to the next, expressed as rate of growth per year.
If growth is thought of as a form of motion, the height attained at successive ages can be considered the distance travelled, and the rate of growth, the velocity.
