Table 1

Poser categorisation19 of incident cases of multiple sclerosis (MS) in Lothian and Border regions in the pilot study and the prospective incidence study

Poser categoryPilot study (1989–92)Prospective study (1992–95)
Clinically definite MS102132
Laboratory supported definite MS7367
Clinically probably MS58110
Laboratory supported probable MS31
Incidence/100 000/year9.312.0
Possible MS108160
  • 1-150 278 in Lothian Region and 32 in Border Region