A comparison of observational studies and randomized, controlled trials.

By Kjell Benson, A. Hartz. New England Journal of Medicine, 2000

1,252 citations recorded by the source corpus.

Subfields: Economics and Econometrics, Statistics and Probability

View Paper: https://www.semanticscholar.org/paper/501f5e58160a874a301825c31752596749d7be2c

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Citations in the corpus

Analysis of observational studies in the presence of treatment selection bias: effects of invasive cardiac management on AMI survival using propensity score and instrumental variable methods. (2007, background): “Randomized clinical trials and observational studies show the greatest similarities under such conditions.(34,35) Observational studies of invasive procedures are more prone to bias because patients who are candidates for surgery often differ in unmeasurable ways from patients who are not.”
Strengthening the Reporting of Observational Studies in Epidemiology (STROBE): Explanation and Elaboration (2007, neutral): “An explicit, commonly used term for the study design also helps ensure correct indexing of articles in electronic databases [19,20].”
Contradicted and initially stronger effects in highly cited clinical research. (2005, background): “disagreements between epidemiological studies and randomized trials.(3-5) Prior investigations have focused on a”
Long-term Follow-up After Bariatric Surgery (2014, neutral): “Ray and Ray,33 2011 Weight loss NR 82 5 66 (80) 58 NR 47 (35-78) NR NR”
Medical big data: promise and challenges (2017, result): “Although Benson and Hartz [29] found little evidence that estimates of treatment effects in observational studies reported after 1984 were either consistently larger than or qualitatively different from those obtained in randomized controlled trials, Tai et al [28] compared the results of both Nurse”
Long-term cardiovascular outcomes in men with obstructive sleep apnoea-hypopnoea with or without treatment with continuous positive airway pressure: an observational study. (2005, background): “17,18 In our study, 36% of patients with severe obstructive sleep apnoea-hypopnoea refused treatment with CPAP.”
The Revised CONSORT Statement for Reporting Randomized Trials: Explanation and Elaboration (2001, background): “Indeed, methodologic investigators often (195– 197) but not always (198, 199) detect consistent differences when they compare nonrandomized and randomized studies.”