Accuracy of Telephone Self-Report of Drug Use in Older People and Agreement with Pharmaceutical Claims Data

A comparison of self-reported cellular t

A comparison of self-reported cellular telephone use with subscriber data: Agreement between the two methods and implications for risk estimation

✍ Joachim Schüz; Christoffer Johansen 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 74 KB 👁 2 views

## Abstract Epidemiologic studies on adverse health effects of cellular telephone use have assessed exposure either by self‐reported use based on questionnaire data or by using data on subscriptions for a cellular telephone provided by network operators. With the latter approach, subjects are miscl