Table 1.

NHIS question items used to measure healthcare access.

NHIS question	Dimension
1. Is there a place that you USUALLY go to when you are sick or need advice about your health?	Approachability
Have you delayed getting care for any of the following reasons in the past 12 months?	–
2. You couldn't get through on the telephone.	Availability
3. You couldn't get an appointment soon enough.	Availability
4. Once you get there, you have to wait too long to see the doctor.	Availability
5. The clinic/doctor's office wasn't open when you could get there.	Availability
6. You didn't have transportation.	Availability
7. If you get sick or have an accident, how worried are you that you will be able to pay your medical bills?	Affordability
8. How worried are you right now about not being able to pay medical costs for normal healthcare?	Affordability