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| English | Russian |
| average age of mother at childbirth | средний возраст матери при рождении ребёнка (статистический показатель Азери) |
| average age of women having children | средний возраст матери при рождении первого ребенка (Family size and fertility rates have fallen. Marriage rates have declined dramatically. The average age of women having children has risen, and extraneous factors like divorce, environmental concerns and debt load have all contributed to smaller families.  vancouversun.com ART Vancouver) |
| average age of women having children | средний возраст женщин, решившихся завести первого ребенка (Family size and fertility rates have fallen. Marriage rates have declined dramatically. The average age of women having children has risen, and extraneous factors like divorce, environmental concerns and debt load have all contributed to smaller families. vancouversun.com ART Vancouver) |
| average generation length | средняя длина поколения (Азери) |
| average life span | средняя продолжительность жизни (dimock) |