; or (B) a knowledgeable proxy (including a proxy of a deceased individual, if applicable) provides information about the subject or responds for all individuals in a household. (3) Demographic data The term demographic data means information about the race or ethnicity, sex, and age of a survey participant or population. (4) Gender identity The term gender identity means the gender-related identity, appearance, mannerism, or other gender-related characteristic of an individual, regardless of the designated sex at birth of the individual. (5) Sexual orientation The term sexual orientation means how a person identifies in terms of their emotional, romantic, or sexual attraction, and includes identification as straight, heterosexual, gay, lesbian, or bisexual, among other terms. (6) Survey The term survey means a data collection activity involving a questionnaire for a sample of a population and includes the decennial census. (7) Variations in sex characteristics The term variations in sex characteristics — (A) means a physical trait present at birth or naturally occurring at a later time (including genitals, gonads, hormone function, and chromosome patterns), that differ from normative expectations for male or female bodies regarding the development, appearance, or function of sex-related characteristics; and (B) is sometimes referred to as intersex traits.