Most were aged between 21-30 years (59.5%,
n= 198) or under 20 years (24.9%, n= 83), with the rest aged over 30 years
(15.6%, n= 52). In addition, 45.9% (n= 153) had purchased CSGs through the
Internet, and 54.1% (n= 180) had purchased CSGs from street vendors or at
physical stores.