The effectiveness of the medication appears to depend on the sex (not gender)of the patient. 冬But: In peasant societies,gender (not sex)roles are likely to be more clearly defined. This distinction is useful in principle,but it is by no means widely observed,and considerable variation in usage occurs at all levels.The effectiveness of the medication appears to depend on the sex (not gender) of the patient. ❖ But: In peasant societies, gender (not sex) roles are likely to be more clearly defined. ❖ This distinction is useful in principle, but it is by no means widely observed, and considerable variation in usage occurs at all levels