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Comparative Study
. 2010 Nov 17;102(22):1724-30.
doi: 10.1093/jnci/djq370. Epub 2010 Nov 2.

Survival of MUTYH-associated polyposis patients with colorectal cancer and matched control colorectal cancer patients

Maartje Nielsen  1 , Liza N van Steenbergen, Natalie Jones, Stefanie Vogt, Hans F A Vasen, Hans Morreau, Stefan Aretz, Julian R Sampson, Olaf M Dekkers, Maryska L G Janssen-Heijnen, Frederik J Hes
Affiliations
Comparative Study

Survival of MUTYH-associated polyposis patients with colorectal cancer and matched control colorectal cancer patients

Maartje Nielsen et al. J Natl Cancer Inst. .

Abstract

Background: MUTYH-associated polyposis is a recessively inherited disorder characterized by a lifetime risk of colorectal cancer that is up to 100%. Because specific histological and molecular genetic features of MUTYH-associated polyposis colorectal cancers might influence tumor behavior and patient survival, we compared survival between patients with MUTYH-associated polyposis colorectal cancer and matched control patients with colorectal cancer from the general population.

Methods: In this retrospective multicenter cohort study from Europe, 147 patients with MUTYH-associated polyposis colorectal cancer were compared with 272 population-based control patients with colorectal cancer who were matched for country, age at diagnosis, year of diagnosis, stage, and subsite of colorectal cancer. Kaplan-Meier survival and Cox regression analyses were used to compare survival between patients with MUTYH-associated polyposis colorectal cancer and control patients with colorectal cancer. All statistical tests were two-sided.

Results: Five-year survival for patients with MUTYH-associated polyposis colorectal cancer was 78% (95% confidence interval [CI] = 70% to 84%) and for control patients was 63% (95% CI = 56% to 69%) (log-rank test, P = .002). After adjustment for differences in age, stage, sex, subsite, country, and year of diagnosis, survival remained better for MUTYH-associated polyposis colorectal cancer patients than for control patients (hazard ratio of death = 0.48, 95% CI = 0.32 to 0.72).

Conclusions: In a European study cohort, we found statistically significantly better survival for patients with MUTYH-associated polyposis colorectal cancer than for matched control patients with colorectal cancer.

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Figures

Figure 1
Figure 1
Crude survival of patients with MUTYH-associated polyposis colorectal cancer and control patients with colorectal cancer in the United Kingdom, Germany, and the Netherlands (including a total of 419 participants, 147 patients with MUTYH-associated polyposis colorectal cancer and 272 control patients). Survival estimates and the corresponding 95% confidence intervals (gray dotted lines) for MUTYH-associated polyposis patients with colorectal cancer (black continuous line) and control patients with colorectal cancer (black dotted line). After adjustment for differences in age, stage, sex, subsite, country, and year of diagnosis, survival remained better for MUTYH-associated polyposis colorectal cancer patients than for control patients (hazard ratio of death = 0.48, 95% CI = 0.32 to 0.72, P < .001).
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