When can we ignore measurement error in the running variable?

Can we ignore changing P wave polarity?

are very few reports on it involving patients with symptomatic cardiac disease. However, little has been reported on this entity during the perioperative period. Not long ago, we reported the case of a 61-year-old woman scheduled for an orthopedic procedure under spinal anesthesia. Spontaneous changes in P wave polarity were detected intraoperatively, although the patient was asymptomatic and t...

When Can We Lift the Coronavirus Pandemic Restrictions? Not Before Taking These Steps

When Can We Lift the Coronavirus Pandemic Restrictions? Not Before Taking These Steps. The American Enterprise Institute, a public policy think tank, recently released a report co-written by former U.S. Food and Drug Administration commissioner Scott Gottlieb that offers a four-phase “road map to reopening.” The first phase involves slowing the spread of new infections with physical distancing ...

when can we release the amplatzer ductal occluder (ado) safely?

background: the ductus arteriosus connects the main pulmonary trunk to the descending aorta. the incidence of isolated patent ductus arteriosus (pda) in full-term infants is about 1 in 2000. the amplatzer ductal occluder (ado) is recommended for pdas with sizes larger than 2 mm. in this procedure, we must confirm the ado position in pda by aortogram from the arterial line. the purpose of this s...

Advancing health disparities research: can we afford to ignore measurement issues?

BACKGROUND Research on racial and ethnic health disparities in the United States requires that self-report measures, developed primarily in mainstream samples, are appropriate when applied in diverse groups. To compare groups, mean scores must reflect true scores and have minimal bias, assumptions that have not been tested for many self-report measures used in this research. OBJECTIVE To iden...

Comment on: IgM nephropathy: Can we still ignore it.