SRB Database: Global Sex Ratio at Birth Projections to 2100

2021 to 2100 projections of sex imbalances at birth, based on 3.26 billion birth records. The database supports scenario-based Bayesian probabilistic projections of the sex ratio at birth and missing female births. It was created by Fengqing Chao and colleagues for a study published in BMJ Global Health in 2021.

Use Cases

• Projecting national-level sex ratio at birth trends based on Bayesian probabilistic models.
• Estimating the number of missing female births globally and regionally based on scenario-based projections.
• Analyzing long-term demographic changes from 2021 to 2100 based on historical birth record data.

Strengths

• Based on a foundation of 3.26 billion historical birth records.
• Provides probabilistic projections for global, regional, and national levels.
• Associated with a peer-reviewed publication in BMJ Global Health.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Fengqing Chao

Collection Method

Scenario-based Bayesian probabilistic modeling applied to birth records.

Time Range

Projections from 2021 to 2100.

Geography

Global, regional, and national levels for all countries.