Stage at diagnosis and colorectal cancer survival in six high-income countries: A population-based study of patients diagnosed during 2000–2007

Abstract

Stage at diagnosis and colorectal cancer survival in six high-income countries: a population

Correcting bias due to missing stage data in the non-parametric estimation of stage-specific net survival for colorectal cancer using multiple imputation

“…Firstly, it is an important determinant of treatment and prognosis and so a key predictor of cancer survival. Information on stage is of vital importance for assessing the impact of early detection programs and for a better understanding of trends over time or differences in cancer survival across countries [6,7].…”

“…For example, in a recent series of papers by the International Cancer Benchmarking Partnership [6,7] the authors excluded from the analysis some of the cancer registries because of their high percentage of missing stage information. In particular,…”

“…Maringe et al [6] focused on colorectal cancer survival and excluded the registries that had less than 50% of patients with recorded stage data in the study period.…”

“…net survival or cumulative excess hazard) for all patients or for groups of patients. For instance, it can be used to estimate net survival by tumour stage at diagnosis, a measure which is of great importance for cancer surveillance and health planning and evaluation [6,7].…”

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“…I will specially thank all authors contributing the most to the 2015 journal impact factor, i.e. articles published during 2013 and 2014 [2][3][4][5][6], all with more than 15 citations during 2015. For obvious reasons, articles published during the first of those two years, in this case 2013, will have a higher chance to be among those most cited.…”