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. 2016 Nov 16;25(1):22–30. doi: 10.1038/ejhg.2016.135

Table 2. Categories of uncertainty identified in letters.

Type and context of uncertainty Example Number of letters (%), n=49
Causal: Uncertainty in relation to the microdeletion being a complete explanation for the patient’s symptoms ‘Generally, we say that these types of microdeletions are not a complete explanation but are likely to be an important contributor to these problems’. CG1_1_12 47 (96)
Predictive: Uncertainty in relation to predicting the phenotypic outcomes for future pregnancies ‘Testing in pregnancy is technically possible; however, if we were to find the microdeletion, we would not be able to predict what effect if any it would have on the baby's development’. CG8_3_12 15 (31)
Predictive: Uncertainty in relation to predicting likelihood of a currently healthy child developing symptoms ‘It is difficult to predict the risk of a child developing epilepsy or autism if a microdeletion has been passed on’. CG6_1_12 4 (8)
Predictive: Uncertainty in relation to predicting change in severity for child with existing symptoms ‘The effects of this chromosome 15 deletion are variable, meaning that some children with (sic) have more significant problems than others, making it difficult to predict [patient’s] future based on this result’. CGF2_3_CG4_5_11 6 (12)
Origin: Uncertainty regarding whether the microdeletion was de novo or inherited ‘[Patient’s] microdeletion may have arisen in him for the first time as a result of accident in development or it may have been inherited from one of you’. CG8_3_12 6 (12)