… One example of this kind of data is administrative claim data. … The effect size of observational
studies is frequently inflated … studies can produce implausibly precise estimates of effect …

… The purpose of this study was to investigate the effect of substitution between unbranded …
Health Units (ASL) in real-world clinical practice in 5 therapeutic areas using tracing drugs. …

… More research is needed to investigate under-… to Medicare claims data, which has major
implications for clinical practice (particularly patient safety) and research using real-world data. …

… clinical practice guidelines. … claims data this has a large impact on the denominator for
quality assessment, since only coded patients will be included. Our data suggest that claims data …

… of inappropriate medical practices and an evidence-practice gap. The present study aimed
… In a medical economics assessment, the effects of differences in treatment quality on patient …

… claims data are an important source of information for healthcare service research, the complex
structure and vast volume of claims … the data sets for the five years analyzed in this study. …

… We aimed to assess the appropriateness of TM testing in outpatient practice in Switzerland.
We conducted a retrospective cohort study based on healthcare claims data. Patients who …

… on nationally representative insurance claims data or registry data. Studies were published
… differences in treatment effect by patient characteristics or by study quality (data not shown). …

… This result was in line with the observation in clinical practice where we observed that
about half of the women with these headaches had menstruation-related migraine headaches. …

… modifications in medical knowledge, changes in medical practice, or in … in claims data
studies, we were not able to establish the severity of such conditions, which could potentially affect …