Symptom   Mean SD t p
Fatigue; tiredness       2.69 0.008
  Pre 2.44 1.12    
  Post 2.17 1.16    
Joint and/or Muscle Pain       3.83 <0.001
  Pre 2.02 1.05    
  Post 1.66 1.04    
Headache       1.6 0.113
  Pre 1.2 1.06    
  Post 1.06 1.11    
Tingling, numbness and/or burning of the extremities       2.26 0.026
  Pre 1.21 1.09    
  Post 1.04 1.02    
Disturbed Sleep       2.81 0.006
  Pre 1.6 1.13    
  Post 1.35 1.16    
Forgetfulness       5.13 <0.001
  Pre 1.66 1.23    
  Post 1.3 1.1    
Difficulty with speech or writing       2.83 0.006
  Pre 1.45 1.2    
  Post 1.23 1.16    
Day sweats, night sweats, chills, flushing       3.62 <0.001
  Pre 1.25 1.18    
  Post 0.92 1.01    
Table 1: Dapsone Pre v. Post Symptom Severity Scores.