Modeling perinatal mortality in twins via generalized additive mixed models: a comparison of estimation approaches
Abstract Background The analysis of twin data presents a unique challenge. Second-born twins on average weigh less than first-born twins and have an elevated risk of perinatal mortality. It is not clear whether the risk difference depends on birth order or their relative birth weight. This study eva...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
BMC
2019-11-01
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Series: | BMC Medical Research Methodology |
Subjects: | |
Online Access: | http://link.springer.com/article/10.1186/s12874-019-0861-2 |