A selective outmigration of males from Hong Kong has affected the malefemale ratio of the current adult population of Hong Kong resulting in there being more females than males in the 15 to 65 year old group as well as the 65 years of age and over group

Add punctuation
A selective out-migration of males from Hong Kong has affected the male/female ratio of the current adult population of Hong Kong resulting in there being more females than males in the 15 to 65 year old group as well as the 65 years of age and over group.