Longevity in Down's syndrome in British Columbia.

Area of Science:

• Pediatrics
• Genetics
• Public Health

Background:

• Down syndrome (DS) is a genetic disorder associated with increased health risks.
• Congenital heart anomalies are common in DS and impact survival.
• Long-term survival data for DS patients, particularly concerning specific risk factors, requires ongoing analysis.

Purpose of the Study:

• To construct life tables for Down syndrome cases in British Columbia from 1952-1971.
• To analyze survival differences to age twenty based on sex and the presence of congenital heart anomalies.
• To identify mortality risks associated with congenital heart anomalies in Down syndrome.

Main Methods:

• Utilized data from the British Columbia Health Surveillance Registry.
• Constructed life tables to age twenty for Down syndrome cases.
• Compared survival rates between males and females.
• Assessed the impact of congenital heart anomalies on mortality.

Main Results:

• No significant difference in survival to age twenty was observed between males and females with Down syndrome.
• Down syndrome patients with congenital heart anomalies exhibited higher mortality rates by age twenty compared to those without.
• Survival differences were consistent regardless of the presence or absence of congenital heart anomalies when comparing sexes.

Conclusions:

• Sex is not a significant predictor of survival to age twenty in Down syndrome cases.
• Congenital heart anomalies represent a critical risk factor for mortality in individuals with Down syndrome by age twenty.
• Further research into managing congenital heart disease in Down syndrome is warranted to improve long-term outcomes.