Share of older U.S. adults with modifiable risk factors for Alzheimer's, 2019, by sex

Percentage of U.S. adults aged 45 years and above with selected modifiable risk factors for Alzheimer's disease and related dementias, as of 2019, by gender*

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Release date

May 2022


United States

Survey time period


Number of respondents

140,076 respondents

Age group

45 years and older

Method of interview

Telephone interview

Supplementary notes

* Behavioral Risk Factor Surveillance System survey questions and calculated variables for 2019 are available at and, respectively. Not meeting the aerobic physical activity guideline was defined as answering “no” to question C11.01 or reporting <150 minutes per week of moderate-intensity aerobic activity, or <75 minutes per week of vigorous-intensity aerobic activity, or an equivalent combination of the two based on questions C11.02–C11.07 consistent with the Physical Activity Guidelines for Americans, 2nd edition ( current-guidelines). Obesity was defined as having a calculated body mass index of ≥30 kg/m2 based on self-reported height and weight from questions C08.17 and C08.18. High blood pressure, diabetes, depression, and hearing loss were defined as answering “yes” to questions C04.01 (excluding pregnancy-related high blood pressure), C06.11 (excluding pregnancy-related diabetes), C06.09, and C08.20, respectively. Binge drinking was defined as reporting having had one or more alcoholic beverages in the previous 30 days and responding “one or more” when asked how many times during the past 30 days they had had X [X = 5 for men and X = 4 for women] or more drinks on an occasion (questions C10.01 and C10.03, respectively). Current cigarette smoking was defined as reporting having smoked ≥100 cigarettes in their lifetime and now smoking every day or some days in response to questions C09.01 and C09.02, respectively.

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