Colombo Twin and Singleton Study: Understanding Mental Disorders in Sri Lanka
Author Information
Author(s): Siribaddana Sisira H, Ball Harriet A, Hewage Suwin N, Glozier Nick, Kovas Yulia, Dayaratne DARK, Sumathipala Athula, McGuffin Peter, Hotopf Matthew
Primary Institution: Sri Lanka Twin Registry, Institute of Research and Development, Battaramulla, Sri Lanka
Hypothesis
The study aims to explore the genetic and environmental influences on mental disorders in a diverse population in Sri Lanka.
Conclusion
The study has created a unique resource for understanding the influences on mental disorders in developing countries.
Supporting Evidence
- The study identified 19,302 individuals for the twin register.
- 4,024 twins were interviewed, including 1,954 complete pairs.
- 2,019 singletons were also interviewed.
Takeaway
This study looked at twins and single people in Sri Lanka to learn more about what causes mental health problems.
Methodology
A population-based twin register was established, and participants were randomly selected for interviews about mental disorders and environmental exposures.
Potential Biases
Potential bias due to the method of twin identification and the representativeness of the sample.
Limitations
The study may not fully account for all environmental risk factors and relies on self-reported data.
Participant Demographics
The mean age of participants was 34 years, with 46.2% male and 90.1% Sinhalese ethnicity.
Digital Object Identifier (DOI)
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