the relative risk of experiencing severe loss of vision after three years in eyes initially assigned to the no treatment group in comparison with eyes assigned to the argon laser photocoagulation group was 1.4 in the smds ( 95 % confidence interval [ ci ] : 1.1 to 1.9 ) , 5.5 in the ohs ( 95 % ci : 3.9 to 10.8 ) , and 2.3 in the invs ( 95 % ci : 0.8 to 6.5 ) .
C0242383
smds
C0015392
ohs