[Non-Hodgkin lymphoma in the elderly]

Area of Science:

• Oncology
• Epidemiology
• Geriatrics

Context:

• Non-Hodgkin lymphoma (NHL) incidence and outcomes vary significantly by age.
• The elderly population (≥70 years) represents a substantial proportion of newly diagnosed NHL cases.
• Population-based data from a Danish NHL register provide insights into elderly NHL patients.

Purpose:

• To analyze the incidence, clinical characteristics, and survival of elderly patients with non-Hodgkin lymphoma.
• To compare elderly NHL patients with their younger counterparts (<70 years).
• To identify prognostic factors for survival in elderly NHL patients.

Summary:

• A Danish population-based study identified 1597 NHL cases, with 602 (38%) aged 70 or older.
• Elderly patients exhibited higher incidence rates and a higher frequency of localized disease and extranodal manifestations (stomach, bone marrow).
• Histological subtypes differed, with fewer follicular centroblastic/centrocytic and more diffuse centroblastic cases in the elderly. Seven-year survival was 35% for the elderly versus 57% for younger patients, persisting after adjustment for non-NHL deaths.
• Multivariate analysis revealed hepatic involvement, B-symptoms, high-grade histology, and elevated serum lactate dehydrogenase (s-LDH) as poor prognostic factors in elderly NHL patients.

Impact:

• Findings highlight the distinct clinical profile and poorer prognosis of non-Hodgkin lymphoma in the elderly.
• Identified prognostic factors can aid in risk stratification and treatment planning for elderly NHL patients.
• This research underscores the need for age-specific considerations in non-Hodgkin lymphoma management.