This is my mom guilt, and purely anecdotal, but I think the high number of 2E is the result of twins being born early. I went to 37 1/2 weeks, but now I'm reading that's still "early." My 2E twin was 1 1/2 lbs smaller than his PG brother (although still 5 lb 10 oz, so a decent size for a twin), and I think the lower birth weight plus the early delivery has something to do with his dyslexia. On the other hand, he was soooo far ahead of the curve as an infant and baby-- he was incredibly social very early, walked at 8 months, talked early, so it was a big surprise when he started lagging behind in reading.
