Table 1.

Sample design and response rates among adults aged ≥18 in the Health Information National Trends Survey (HINTS), 2008-2017 (N = 18 103), United States^a

Variable	HINTS 3	HINTS 4		HINTS 5, Cycle 1
		Cycle 1	Cycle 3
Survey mode	Postal mail and random-digit dial	Postal mail	Postal mail	Postal mail
Data collection period	January 7–April 27, 2008	October 25, 2011–February 21, 2012	September 6–December 30, 2013	January 25–May 5, 2017
Sample size, no.	Postal mail, 3582; random-digit dial, 4092	3959	3185	3285
Response rate	Postal mail, 40.0%; random-digit dial, 24.2%	36.7%	35.2%	32.4%

^a Data sources: HINTS 3, HINTS 4 (Cycles 1 and 3), and HINTS 5 (Cycle 1). National Institutes of Health, National Cancer Institute.²⁰

^b Response rates were calculated according to the American Association for Public Opinion Research Standards.²¹