Annals of surgery
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To describe the evolution of the use and reporting of propensity score (PS) analysis in observational studies assessing a surgical procedure. ⋯ Observational studies with PS analysis in surgery are increasing in frequency, but specific methodological issues and weaknesses in reporting exist.
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To investigate the association between diverticulitis and colon cancer in a large, nationwide cohort study. ⋯ We found a strong association between development of diverticulitis and colon cancer. This raises several questions regarding the possible causal association and warrants further studies. Patients with diverticulitis should undergo endoscopic surveillance for colon cancer.
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Comparative Study
Differential Prognostic Implications of Gastric Signet Ring Cell Carcinoma: Stage Adjusted Analysis From a Single High-volume Center in Asia.
The aim of this study was to analyze the clinicopathologic characteristics and prognosis of signet ring cell carcinoma (SRC) according to disease status (early vs advanced gastric cancer) in gastric cancer patients. ⋯ Although conferring favorable prognosis in early stage, SRC has worse prognostic impact as disease progresses. The longstanding controversy of SRC on prognosis may result from disease status at presentation, which leads to differing prognosis compared with tubular adenocarinoma.