Ikäaikoja
Ikäaikoja is a Finnish term that refers to life-stage or age intervals used to categorize individuals by age in research, statistics, and policy. The plural form ikäaikoja emphasizes that multiple such intervals are often used within a study or a program. The concept helps organize data so that comparisons across groups are meaningful, for example when reporting disease incidence, educational needs, or social services usage by age.
In demographic and epidemiological work, ikäaikoja are the age brackets or cohorts into which populations are
Limitations include that the choice of age brackets can influence results and may obscure within-group differences,
See also: age group, demographic segmentation, life course, epidemiology, public health.