Decision Sciences
8 years ago

Observational studies in digestive surgery may overestimate treatment benefits.

Annals of Surgery
Comparison of Effects in Randomized Controlled Trials With Observational Studies in Digestive Surgery
Satoru Shikata, Takeo Nakayama, Yoshinori Noguchi, Yoshinori Taji, Hisakazu Yamagishi

Paper Summary

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The article compares results from randomized controlled trials and observational studies in digestive surgery. Researchers looked at 52 outcomes from 18 topics and found that one fourth of observational studies showed different results than randomized trials. Observational studies had more variability in their findings compared to randomized trials.