Often clinicians are interested in determining whether a subject's measurement falls within a normal range, defined as a range of values of a continuous outcome which contains some proportion (eg, 95%) of measurements from a healthy population. Several studies in the biomedical field have estimated reference ranges based on a meta-analysis of…

To explore the willingness to participate in genomics research among African Americans, we developed a technique specifically suited to a relaxed social setting. The "Qualitative Story Deck," (QSD) is a gamified, structured elicitation technique that allows for the spontaneous creation of scenarios with variable attributes. We used the…

During drug development, a biomarker is sometimes identified as separating a patient population into those with more and those with less benefit from evaluated treatments. Consequently, later studies might be targeted, while earlier ones are performed in mixed patient populations. This poses a challenge in evidence synthesis, especially if only…

Meta-analysis of 2 × 2 tables is common and useful in research topics including analysis of adverse events and survey research data. Fixed-effects inference typically centers on measures of association such as the Cochran-Mantel-Haenszel statistic or Woolf's estimator, but relies on assuming exact homogeneity across studies, which is often…

Background: Individual patient data (IPD) meta-analysis allows for the exploration of heterogeneity and can identify subgroups that most benefit from an intervention (or exposure), much more successfully than meta-analysis of aggregate data. One-stage or two-stage IPD meta-analysis is possible, with the former using mixed-effects regression models…

Background: This article charts the relationships between the model of evidence-based practice (EBP), healthcare markets where providers are increasingly competing through the adoption of EBP-certified interventions, and the cultivation of experiential knowledge within self-help and mutual aid groups (MAGs). After 35 years of neoliberal reform,…