stage migration

A term referring to the 'improved' survival of patients with cancer or other disease by either reclassifying them into different prognostic groups, recognising more subtle disease manifestations, or by using diagnostic modalities that allow the disease to be diagnosed at an earlier stage. The Will Rogers phenomenon results in a ‘zero-time shift’ and improved prognosis without affecting actual survival

stage migration

Will Rogers phenomenon, see there.
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The improvement in outcomes is probably due to stage migration that allows for increased utilization of adjuvant chemotherapy.
12] This stage migration towards smaller lower stage tumours, however, was not observed in an Australian series; an upward histological migration was demonstrated.
PSA testing to detect prostate cancer in asymptomatic men aged 50-70 years has led to a dramatic stage migration in developed countries.
There are no data on the impact of MRI screening on survival outcomes," she said, noting that the data to support MRI screening in terms of outcomes are based on disease stage migration, not survival.
Specific topics addressed by the papers include the circulation of credit among immigrants in 19th century Italy, seasonal labor migration and the ethnic division of labor in Swedish industry, agency in 19th and 20th century labor migration, anthropologist Franz Boas and the measurement of US new immigrants in 1907-1911, internal and transatlantic migration in Italy, Basque migration and inheritance in the 19th century, continental and transatlantic Polish migration and return migration in 1870-1924, and transatlantic migration from the late Austrian Empire and its relation to rural-urban stage migration.
Cisco says the dropoff in its FibreChannel SAN revenue and market share in Q1 is attributable to three factors: an early stage migration to 8Gbps; a lower cost migration than rival Brocade; and exposure to financial buyers, which is hard hit by the recession.
These changes will occur over the next five years, but manufacturers must implement new business plans now to capitalize on the effects of stage migration at diagnosis and new treatment approaches.
The periodic implementation of turnkey updates and 3rd line maintenance, as well as at a later stage migration to the New Enterprise Architecture Schelderadarketen.
2] The increasing incidence of RCC, attributed in large part to increased abdominal imaging, has typically accompanied a downward stage migration, with smaller incident masses and the expectation of lower stage and grade.
This trend, which we call stage migration, appears to have gone as far as it can go," he said.
This stage migration was accompanied by increased concordance between biopsy and specimen GS from 58% to 72%.
Indeed recent reports suggest a reverse stage migration of men presenting for RP in the era of AS, with a significant decrease in the percentage of low-risk patients.