title: [The use of the age concept in monthly population figures].
abstract: "In Dutch population statistics age is usually defined as the year in which a demographic event occurs minus the year of birth. This age concept is referred to as age on 31 December. As a consequence of determining age in this manner, interpreting age-specific monthly figures is sometimes difficult.... Statistics Netherlands prefers the concept of age on 31 December for two reasons: it facilitates the linking of cohort and period data in the case of annual figures; using one concept for annual and monthly figures avoids consistency problems." (SUMMARY IN ENG)
mesh_terms: D017677:Age Distribution; D000367:Age Factors; D003710:Demography; D019049:Developed Countries; D005060:Europe; D009426:Netherlands; D011153:Population; D011154:Population Characteristics; D012106:Research; D012107:Research Design; D009626:Terminology as Topic
keywords: Age Distribution; Age Factors; Demographic Factors; Developed Countries; Error Sources; Europe; Measurement; Netherlands; Population; Population Characteristics; Population Statistics; Research Methodology; Terminology; Western Europe
vernacular_title: Het gebruik van "leeftijd" in demografische maandcijfers.