Results 71 to 80 of about 114,155 (256)
Decomposing Triple-Differences Regression under Staggered Adoption [PDF]
arXiv, 2023 The triple-differences (TD) design is a popular identification strategy for causal effects in settings where researchers do not believe the parallel trends assumption of conventional difference-in-differences (DiD) is satisfied. TD designs augment the conventional 2x2 DiD with a "placebo" stratum -- observations that are nested in the same units and ...
arxiv
Decline of COPD exacerbations in clinical trials over two decades -- a systematic review and meta-regression [PDF]
Respiratory Research 20:186, 2019, 2019 BACKGROUND: An important goal of chronic obstructive pulmonary disease (COPD) treatment is to reduce the frequency of exacerbations. Some observations suggest a decline in exacerbation rates in clinical trials over time. A more systematic understanding would help to improve the design and interpretation of COPD trials.
arxiv +1 more source
Should desperate volunteers be included in randomised controlled trials? [PDF]
, 2005 Randomised controlled trials (RCTs) sometimes recruit participants who are desperate to receive the experimental treatment. Some claim this practice is unethical for at least three reasons. The first is that the notion of equipoise, which is often used
Allmark, P. J., Mason, S.
core +2 more sources
How does observational learning produce placebo effects? : a model integrating research findings [PDF]
, 2018 There is a growing body of evidence proving that observational learning, in addition to classical conditioning and verbal suggestions, may induce both placebo analgesia and nocebo hyperalgesia.
Bajcar, Elżbieta, Bąbel, Przemysław
core +2 more sources
فصلنامه دانشگاه علوم پزشکی جهرم, 2013 Introduction: Postoperative nausea and vomiting (PONV) complicates the lives of patients. Most of antiemetic drugs used prevent PONV after surgery, but they have undesirable adverse effects such as excessive sedation, hypotension, dysphoria and ...
Masoud Ghaneei, Reza sahraei
doaj
PLoS ONE, 2014 We aimed to investigate the use of placebos (e.g. saline injections) and non-specific treatments (e.g. vitamin supplements in individuals without a relevant deficiency) among physicians working in private practices in Germany, and how such use is ...
Klaus Linde +5 more
doaj +1 more source
Placebos: Their Effectiveness in Medicine and Implementation in Health Care [PDF]
, 2017 Placebos are drugs that have no active therapeutic effect, yet they are often used in medicine. With a combination of physiological and neuroscientific factors, placebos can relieve a person of their symptoms even though they are not actually taking a ...
Denk, Jordan
core +1 more source
Unethical aspects of homeopathic dentistry [PDF]
, 2010 In the last year there has been a great deal of public debate about homeopathy, the system of alternative medicine whose main principles are that like cures like and that potency increases relative to dilution.
A O'Dowd +8 more
core +1 more source
Great Expectations: The Evolutionary Psychology of Faith-Healing and the Placebo Effect [PDF]
, 2002 non
Humphrey, Nicholas
core
Deliberate use of placebos in clinical practice: what we really know [PDF]
Increasingly a focus of research as well as media reports and online forums, the use of placebos in clinical medicine extends beyond sugar pills and saline injections.
Harris, Cory S, Raz, Amir
core +2 more sources