National Health and Wellness Survey (NHWS) vaccination questions at each time point.

N/A indicates not assessed. As discussed above, the NHWS is conducted once per quarter for the first three quarters of each year. The item pertaining to the herpes zoster vaccine was not included in the first quarter survey in 2011 (it was included in a subsequent quarter). As a result, data on the herpes zoster vaccine was not available for this study (which only used the first quarter survey).