Presumably because the precipitants to the attacks generally require a degree of mobility, descriptions of reflex anoxic seizures before the age of 6 months are rare. Also, there are many descriptions of attacks starting in later childhood and in adult life, although in such cases, the precipitants tend to be different, for example, involving bloodletting (Roddy et al.
It is probable that the factors leading to the attacks usually require some level of mobility, resulting in infrequent descriptions of reflex anoxic seizures before 6 months. Similarly, there are numerous accounts of attacks beginning in later childhood and adulthood, although these triggers often vary, such as bloodletting (Roddy et al.