Sam's time with me more or less resembles the plight of the Russian people circa 1917 through '45: a timeline of broken promises, creeping fear, paranoia, systematic dehumanisation and backbreaking attrition, only with more Beach House and some disappointing love-making.
There was differential attrition with attrition more common among respondents with parents with lower status occupations and less education, respondents from single parent families and especially respondents with lower achievement scores (Lim 2011, pp. 14, 15).
The effect of developmental telomere length change was negative (B = −2.20, 95% confidence interval, CI −3.25 to −1.15); that is, greater telomere attrition was associated with more trials required to autoshape.
It is plausible that there is selective attrition of individuals with more advanced stage, especially in the early years in the panel when ART was not as widely accessible.
Norway also calculated with more attrition losses than what Sweden considered reasonable.
Hence, comparison of the effects of selective attrition on bivariate associations with more complex associations was again allowed.
With regard to point (2), one of the main reasons that response averages are not straight is the attrition of the trials with more extreme buildup rates from the averages.
As is common in longitudinal birth cohorts, this study suffered from some attrition, with selective loss of more disadvantaged families, which might affect generalisability and may explain why childhood adversity was not a risk factor in our analyses.
Studies with more than 30% patient attrition were excluded.
