| Relevance/rationale of the indicator (resp. why the indicator was chosen to measure the target and how it is suitable for these purposes) | The age index characterizes the age structure of the population. | 
                            
                | Target value of the indicator and its evaluation |  | 
                            
                | Definition | The age index expresses how many people aged 65 and over per 100 children aged 0–14 in a given population. | 
                            
                | Measuring unit | Number of persons | 
                            
                | Indicator disaggregation | By sex By region
 By AD MEP
 | 
                            
                | Reference period (resp. the period to which the indicator relates) | Year | 
                            
                | Related geographical area | CZ (NUTS 0), regions (NUTS 3), administrative districts of municipalities with extended powers (AD MEP) | 
                            
                | Comment | At regional level, the data relate to the territory of the region valid in the year to which the figure relates. |