After 60 months , the cumulative probability of clinically definite multiple sclerosis was lower in the BCG + DMT arm ( hazard ratio = 0.52 , 95 % CI 0.27-0 .99 ; p < 0.05 ) , and more vaccinated people remained DMT-free ( odds ratio = 0.20 , 95 % CI 0.04-0 .93 ; p = 0.04 ) .