 In some studies , age > 60 years and elevated lactate dehydrogenase level were also associated with poorer outcomes . As with most forms of cancer , performance status ( i.e. the general physical condition and activity level of the person ) plays a major role in prognosis as well . 
 In some studies , age > 60 years and elevated lactate dehydrogenase level <a href='uninflect' title='1'><mark>were</mark></a> also associated with poorer outcomes . As with most forms of cancer , performance status ( i.e. the general physical condition and activity level of the person ) <a href='uninflect' title='2'><mark>plays</mark></a> a major role in prognosis as well . 
In some studies , age > 60 years and elevated lactate dehydrogenase level was also associated with poorer outcomes . As with most forms of cancer , performance status ( i.e. the general physical condition and activity level of da person ) play a major role in prognosis as well .