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DC Field | Value | Language |
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dc.contributor.author | Sumathipala, A. | en_US |
dc.contributor.author | Sribaddana, S.H. | en_US |
dc.contributor.author | Abeysingha, N.M. | en_US |
dc.contributor.author | de Silva, N*. | en_US |
dc.contributor.author | Fernando, D.J. | en_US |
dc.contributor.author | Dayaratne, D.A. | en_US |
dc.contributor.author | de Silva, D. | en_US |
dc.contributor.author | Warnasuriya, N.D. | en_US |
dc.contributor.author | Hotopf, M. | en_US |
dc.date.accessioned | 2014-10-29T09:22:02Z | |
dc.date.available | 2014-10-29T09:22:02Z | |
dc.date.issued | 2003 | en_US |
dc.identifier.citation | Twin Research. 2003; 6(1): pp.67-71 | en_US |
dc.identifier.issn | 1369-0523 (Print) | en_US |
dc.identifier.uri | http://repository.kln.ac.lk/handle/123456789/1591 | |
dc.description | Indexed in MEDLINE | |
dc.description.abstract | The National Twin Registry of Sri Lanka was established in 1997 as a volunteer register. To extend it to a population-based register, we examined the effectiveness of tracing older twins by inspecting birth records and recruiting them by postal invitation and in-person contact. Birth records at a divisional secretariat reported from 2 maternity hospitals between the years of 1954-1970 were scrutinised to identify a random sample of twins. These hospitals had the highest twin delivery rates for the whole country. We identified 620 twins and a questionnaire was mailed to them. Research assistants visited a cohort of non-respondents (71) in the postal survey. These 620 twins were identified after perusing 20700 birth records. The twinning rate was estimated at 29.95 ([620/20700] x 1000) twins per 1000 registered births (CI 27.63-32.27). In the postal survey, 37 (12%) responded and 62 letters were returned (20%). Both twins were still alive in 20 pairs, one was still alive in 15 pairs, and both twins were dead in 2 pairs. During field visits, 42 (59.2%) addresses were located. Information was available on 16 twin pairs. Both twins were alive in 8 pairs, one each in 4 pairs, and both were dead in 4 pairs and at least one twin was traced in 10 pairs (14%). Both the postal and the field survey gave a low yield. This finding is different from tracing younger twins born between 1985-1997 by using the same methods. Migration, urbanization and development in the country might have affected tracing older twins from the birth record addresses, which were decades old. | en_US |
dc.publisher | Australian Academic Press | en_US |
dc.subject | Twins | |
dc.subject | Registries | |
dc.title | Challenges in recruting older twins for the Sri Lankan twin registry | en_US |
dc.type | Article | en_US |
dc.identifier.department | Physiology | en_US |
dc.creator.corporateauthor | International Society for Twin Studies | en_US |
Appears in Collections: | Journal/Magazine Articles |
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