Studying the twinning rate, Pg13.

Key Highlights:

• A study analyzing data from 1980-2015 across 39 low-income countries projects a 10.5% decline in India's twin birth rate by 2100 due to decreasing fertility rates.
• Despite the decline, India is expected to have the largest share of twin births globally at 23.4% due to its large population.
• A separate study from 1993-2021 shows that twin births in India increased from 0.9% to 1.5%, accounting for 7.7% of under-five deaths.
• The study highlights that twins face a significantly higher mortality risk, 7.5 to 10 times higher, compared to single babies, especially in the early and late neonatal phases.

Detailed Insights:

• The Max Planck Institute study suggests India's future twinning rates could be underestimated due to the increasing use of Medically Assisted Reproduction (MAR), which wasn't fully factored into the projections.
• The Harvard study emphasizes the need for targeted health interventions for twins, as their survival rates vary significantly based on household wealth, highlighting their vulnerability.
• Establishing a twin registry in India, similar to those in Australia, Denmark, Finland, and Sweden, is crucial for tracking health, supporting policy-making, and understanding the complexities of twinning.
• Twin registries are valuable for understanding the influence of genes versus the environment on diseases, aiding in accurate diagnosis, treatment, and prevention strategies.

Key Concepts Involved:

• Twinning Rate: The number of twin births per 1,000 deliveries, indicating the prevalence of twin pregnancies in a region.
• Medically Assisted Reproduction (MAR): Treatments like ovulation induction, artificial insemination, and Assisted Reproductive Technologies (ART) such as in vitro fertilization (IVF).
• Twin Registry: A database that tracks the health and development of twins, providing insights for research and policy-making.