RELAPSE RATE AFTER CESSATION OF THERAPY IN CHILDHOOD LEUKEMIA

Abstract
The experience of 490 children from the Nordic countries who had their antileukemic therapy stopped prior to Jan. 1981 is presented. The observation times after stopping therapy were between 1 mo. and 19 yr. A total of 105 children (21.4%) relapsed before Jan. 1981. No children relapsed later than 4 yr after cessation of therapy. The calculated long term relapse rate is 28%.