Children who experienced sleep terrors during early childhood are much more likely to continue experiencing them at age 5 years or older. About 41.7% of children with early-childhood sleep terrors still had them from age 5 onward, compared with only 16.5% of children without early sleep terrors who first experienced them at age 5 or later. The odds ratio of 3.61 indicates that early-onset sleep terrors are strongly associated with their persistence into later childhood.