JAMA Internal Medicine

Covariate-Constrained Randomization

This Guide to Statistics and Methods provides an overview of the covariate-constrained randomization design, which can achieve improved control over large imbalances across study arms at the cluster level over simpler methods of randomization.

Gender-Affirming Feminizing Hormone Therapy

This Clinical Insights describes the process for initiating feminizing gender-affirmative hormone therapy for transgender women or nonbinary people.

Continuous Glucose Monitor Use—Avoiding Overuse

This case report describes a patient in their 30s with hypertension, anxiety, depression, chronic tremulousness, nausea, vomiting, headache, and mental fog.

An Unusual Cause of Atrioventricular Block

This case report describes a man in his 60s who presented with a 3-day history of low-grade, intermittent fever, myalgia, and headache, along with episodes of blurred vision and recurrent syncope.

Diagnosis and Management of Monoclonal Gammopathy of Undetermined Significance – A Review

Importance  Nearly 5% of adults have the precursor malignant condition monoclonal gammopathy of unknown significance (MGUS). Management centers on differentiating MGUS from more serious conditions to determine additional diagnostic testing, monitoring, and potential therapy. Observations  MGUS is defined by the absence of…

Emulating a Target Trial Using Observational Data

This Guide to Statistics and Methods discusses target trial emulation, including why to use it, limitations of the method, and how to interpret target trial emulation findings.