High-grade non-Hodgkin's lymphoma stage I. A retrospective study of treatment, outcome and prognostic factors in 213 patients
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In a retrospective study of 213 patients with high-grade non-Hodgkin's lymphomas clinical stage I, diagnosed 1985-1990, pretreatment prognostic variables and result of treatment were analysed. The median age of the patients was 67 years. Treatment consisted of radiotherapy in 61%, chemotherapy (10%) chemotherapy followed by radiotherapy (23%) and surgery alone (5%) of the patients. Complete response was achieved in 89% of the patients with estimated relapse-free survival at 5 years of 73%. Relative 5-year survival of all patients was 73%. After chemotherapy followed by radiotherapy the relapse rate was 15% compared with 29% after radiotherapy only. The 5-year relative survival differed between 58% and 74% in the treatment groups. Age, sex, nodal versus extranodal lymphoma, systemic symptoms, bulk of tumor and level of serum lactic dehydrogenase (s-LDH) were analysed as prognostic factors. In multivariate variate analysis, only age 65 years or older and elevated s-LDH were significant independent adverse prognostic factors.