Descriptive epidemiology of lymphoid and haemopoietic malignancies in Bangalore, India

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Abstract
Lymphoid and haemopoietic malignancies as a group constitute one of the important cancers in India, as elsewhere in the world. While information on incidence and mortality of these cancers, and that on survival, are available from most developed countries, there areveryfew reports describing this experience in developing ones. Population‐based cancer registration commenced in Bangalore, India, in January 1982, under the auspices of the Indian Council of Medical Research. This source provides fairly complete and reliable incidence data, but, in order to obtain mortality and survival information, active follow‐up involving visits of homes of patients was undertaken. Between 1982 and 1989, 1397 cases of lymphoid and haemopoietic malignancies were registered in the Bangalore cancer registry, giving an age‐adjusted incidence rate of 7.7 and 4.8 per 100,000 in males and females respectively. Active follow‐up provided mortality/survival information in 1267or90.7% of these cases. The overall observed 5‐year survival for these cancers combined (both sexes) was 26%, and relative survival 28.4%. The 5‐year survival rate was lower in all the individual lymphomas and leukaemias as compared with similar reports from the developed countries. Survival in Hodgkin's disease was influenced by clinical stage and age at presentation.

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