Figure 1.

Re-identification strategy to associate an ID in the Study Data with an Address and Name of a participant in the study. (a) First, match records in the HES study data (green) to real estate property data (brown) on beds, baths, square feet of living area, and decade group in which the house was built (mixed green and brown lettering) to put an address to an ID. Then, (b) match the joined information (green and brown) from (a) on gender, decade group of birth, move-in decade group, race and ethnicity, and address (mixed green, orange, and brown lettering) to a people register (orange) to put a name to the ID. The name of a known resident at the address in the people register may or may not be the same as the name of the owners in the real estate property data. A re-identification results when a name or address is associated with an ID. “Decade” refers to dates grouped in ranges of 10 to 90 years.