Okay - according to various sources on the web - the general tendencies are:

1) older people more likely to have significant hearing loss then younger

2) men tend to suffer hearing loss to a greater extent then women

3) normally more hearing loss is suffered in the higher frequencies then the lower

4) 60 % of both genders over the age of 65 suffer significant hearing loss in the frequencies utilized by the sounds of 's', 'th','k', 'f' (those four sounds utilize frequencies higher then most speech)