Cross-Sectional Average Length of Life Childless

Area of Science:

• Demography
• Reproductive Health
• Sociology

Background:

• Increasing average age at first birth and higher rates of childlessness are extending childless years for women.
• Understanding the duration of childless reproductive life is crucial for demographic and social analysis.

Purpose of the Study:

• To introduce and apply a new metric, the cross-sectional average length of life childless (CALC), to quantify childless reproductive years.
• To analyze international variations and cohort contributions to childless life duration.

Main Methods:

• Developed the cross-sectional average length of life childless (CALC) measure.
• Utilized the Human Fertility Database to calculate CALC for 2015 across multiple countries.
• Employed decomposition analysis to visualize cohort contributions to CALC differences.

Main Results:

• Women in most studied countries spend over half their reproductive lives childless.
• Cohort analysis revealed younger female cohorts in Japan and Spain contribute to longer childless periods compared to Sweden.
• The United States shows a lower expectation of childless life compared to other high-income nations; Hungary's CALC was impacted by the Great Recession.

Conclusions:

• The CALC measure effectively quantifies childless reproductive years and provides insights into first-birth patterns.
• CALC decomposition highlights country-specific cohort dynamics influencing childless life duration.
• Findings underscore significant demographic shifts in childbearing patterns across developed nations.