TABLE 1. Epilepsy surveillance case ascertainment questions, by survey.

Survey	Questions	Possible responses
National Health Interview Survey (2015)	1. Have you ever been told by a doctor or other health professional that you have a seizure disorder or epilepsy?	1) Yes, 2) No, 7) Refused, 8) Not ascertained, 9) Don’t know
	2. Are you currently taking any medicine to control your seizure disorder or epilepsy?	1) Yes, 2) No, 7) Refused, 8) Not ascertained, 9) Don’t know
	3. Today is <date>. Think back to last year about the same time. About how many seizures of any type have you had in the past year?	0) None, 1) One, 2) Two or three, 3) Between four and ten, 4) More than 10, 7) Refused, 8) Not ascertained, 9) Don’t know
National Survey of Children’s Health (2011–2012)	1. Has a doctor or health care provider ever told you that your child has epilepsy or a seizure disorder?	1) Yes, 2) No, 7) Refused, 8) Not ascertained, 9) Don’t know
	2. Does your child currently have epilepsy or a seizure disorder?	1) Yes, 2) No, 7) Refused, 8) Not ascertained, 9) Don’t know