Progression-free survival of patients.

Progression-free survival was measured from the start of induction therapy until disease progression or, in patients without disease progression, until the end of the observation period. Seventeen patients had high (262 or more) and 11 patients had low (10-261) numbers of circulating t(14;18)-positive cells before treatment (P = .26, log-rank test). ♦ indicates end of observation period for individual patients.