Estimates were created using the NHIS survey weights, which are calibrated to the total U.S. Civilian non-institutionalized population. The margin of error (MOE) represents the uncertainty of an estimate due to sampling variability; the calculated MOE is 95%. N/A indicates that data were suppressed because the number of sample cases was too small or the estimate had a relative standard error greater than 30%. There is a break in series in 2019 because NHIS implemented a new sample design. Estimates from 2018 and earlier should not be compared to those from 2019 and later.
Questions about dental visits is part of the NHIS questionnaire's Rotating Core
and therefore is not collected every third year.