RESULTS	Rates of serious adverse events ( overall rate = 14.8 events/100 patient-yrs ) , serious infections ( overall rate = 4.2 events/100 patient-yrs ) , cancer ( overall rate = 1.0 events/100 patient-yrs ) , and deaths ( overall rate = 0.7 events/100 patient-yrs ) were stable each year , through 8 years of etanercept exposure .\