jaikä

Jaikä is a term used in Finnish-language statistical and sociological writing to denote the intersection of age with another variable, or to label age categories defined in combination with a second dimension. It is not a universally standardized concept, but a descriptive label that appears in data tables, surveys, and analyses to indicate age-related interactions or joint groupings.

The word is a compound of ja ("and") and ikä ("age"). It is predominantly found in Finnish texts and is not commonly used in English-language sources, where the concept is typically described with phrases like “age-by-variable interaction” or similar terminology.

In data presentation, jaikä may appear as a label such as jaikä-education or jaikä-gender, signaling that age is being analyzed together with the specified variable. Researchers may apply jaikä to cross-tabulations, interaction terms in regression models, or stratified summaries where age ranges are paired with another attribute to reveal combined effects.

Because jaikä is not standardized, its exact meaning depends on the dataset and author. Users should refer to the accompanying methodology to understand which variables are combined and how age brackets are defined.

See also: age structure, demography, data analysis, interaction terms.