#Zika just keeps on giving... 
"Below-average neurodevelopment and/or abnormal eye or hearing assessments were noted in 31.5% of children between 7 and 32 months of age."https://www.nature.com/articles/s41591-019-0496-1 …
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Agree that control groups are always good - but Bayley scales are regarded as the "gold standard" for neurodevelopment and, as far as I understand, ranges of "normality" have been established in large population-based studies, and validated across settings (including Brazil).
Thanks Isabel, this is helpful - because as I mentioned, I'm not familiar with these tests. However, when they say "below average", do they actually mean "below normal compared to a test validated to a fully matched control group"? If yes, then OK, but otherwise not.
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I think that by below average they just mean below the age-standardized mean (which I think is a 100, SD=15). Not sure if the "below average" is meaningful at all.
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From the paper: "A Bayley-III score within 1 s.d. above or below the norm of 100 was considered normal...A score of .... 1–2 s.d. below the norm (< 85 to 70) [was considered] moderately below average. A score... 2 s.d. below the norm [was considered] well below average (<70). "
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Nieuw gesprek -
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I wonder if
@suchard_group might have some insights here as well...Bedankt, Twitter gebruikt dit om je tijdlijn te verbeteren. Ongedaan makenOngedaan maken
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Not sure how well matched this specific population is, but I do know that the scale has been shown to work well across children from different countries/settings/SES etc.
Bedankt, Twitter gebruikt dit om je tijdlijn te verbeteren. Ongedaan makenOngedaan maken
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Het laden lijkt wat langer te duren.
Twitter is mogelijk overbelast of ondervindt een tijdelijke onderbreking. Probeer het opnieuw of bekijk de Twitter-status voor meer informatie.