| Figure
4.1. Percent of adults aged 18 years and over who received influenza
vaccine during
the past 12 months, by age group: United States, quarter one 1997-quarter
four 2001
NOTES: Respondents were
asked if they had received an influenza vaccination during the past 12
months. Responses to this question cannot be used to determine when during
the preceding 12 months the subject received the influenza vaccination. In
addition, estimates are subject to recall error, which will vary depending
on when the question is asked because the receipt of influenza
vaccinations is seasonal. The analysis excluded those with unknown
influenza vaccination status.
DATA SOURCE: Sample
Adult Core component of the 1997-2001 National Health Interview Surveys.
|
The
quarter 4 estimates increased from 54.2% in 2000 to 59.5% in 2001 for
persons aged 65 years and over, and from 26.6% in 2000 to 30.6% in 2001
for persons aged 50-64 years. The estimates, however, were still lower
than the quarter 4 estimates in 1999.
