Copy number variation in the dosage-sensitive 16p11.2 interval accounts for only a small proportion of autism incidence: a systematic review and meta-analysis.
All,
This study found that 16p11.2 deletions and duplications account for less than 1% of autism cases overall, which can help families understand how these genetic variants contribute to autism risk and why genetic testing (chromosomal microarray) is still a valuable diagnostic tool.