Methodologic challenges of randomized controlled studies on in-home comprehensive geriatric assessment: the EIGER project. Evaluation of In-Home Geriatric Health Visits in Elderly Residents.

Previous controlled studies have shown that preventive home visits are a promising method for disability prevention in elderly persons; however, due to the lack of data on cost effectiveness and optimal intervention methods, there is still debate on their usefulness. Therefore, additional controlled studies must use new methods to resolve these unanswered issues. We present a novel approach used in the project EIGER (Evaluation of In-Home Geriatric Health Visits in Elderly Residents), an ongoing randomized controlled trial of preventive home visits in community-residing persons aged 75 years and older in Bern, Switzerland.