Table 1

Definitions of sex and gender

Sex
A biological categorisation based on reproductive organs, hormones and chromosomes.
Gender
A constantly and continuously ongoing interactional social construction of what is considered "female" and "male", based on sociocultural norms and power.

Risberg et al. International Journal for Equity in Health 2003 2:10   doi:10.1186/1475-9276-2-10