TABLE 2—

National Health and Nutrition Examination Survey 2021–2022 Household Interview Content: United States

Modified	Added	Cycled Out
All Sample Person questions conducted via phone or in-person	COVID-19	Over 50% of Sample Person questions
All Family questions conducted via phone or in-person		∼23% of Family questions
Dietary supplement use (past 30 days) moved to post exam interview with Day 1 24-h dietary phone interview		Home dietary salt collection to test for iodine
		Home water sample collection to test for fluoride
		Human papillomavirus (HPV) oral rinse
		Infant formula ingredients collection

Note. Refer to NHANES Web site for 2019–2020 Sample Person and Family Questionnaire Instruments.¹¹