The aim of the present study was to investigate to what degree a worse prognosis in young women can be explained by stage, tumour characteristics and treatment procedures.
The survival difference could not be explained by stage or grade.
The low sensitivity in our study might be explained by stage of the lymphadenitis, where high number of tubercle bacilli is present in central abscess/ necrotic material [ 26].
This cannot be explained by stage migration alone, as any artefact brought about by incorrect staging is eliminated when all stages are considered together.
Since this was the case in early as well as late active lesions, and in brain as well as spinal cord lesions, this observation cannot simply be explained by stage or location dependent differences in the lesions.
While some of the survival differential is explained by stage of disease, significant differences in survival remain after adjustment for tumour size, stage, age at diagnosis and treatment [ 41, 42].
The majority of this survival benefit is explained by stage shift as tumours detected by screening are identified earlier in their natural history and consequently have an improved prognosis (Wishart et al, 2008).
In this paper, we examine evidence to support the hypothesis that the effect of number of nodes harvested on survival is explained by stage migration, using prospective data from a large UK population based cohort of colorectal cancer patients.
In this study, I examined the extent to which socioeconomic disparity in breast cancer survival was explained by stage at diagnosis, treatment, race and rural/urban residence using the Surveillance, Epidemiology, and End Results (SEER) data.
In this study, I examined the extent to which these disparities was explained by stage at diagnosis, first course treatment, race and rural/urban residence by taking account of these variables, from the Surveillance, Epidemiology, and End Results (SEER) database, simultaneously and including all women diagnosed with breast cancer.
The low number of MSI tumors in stage I in the present series can partly be explained by few stage I tumors in the proximal colon and numerous stage I tumors in the rectum.
