Screening for data clustering in multicenter studies: the residual intraclass correlation

Prediction models for clustered data: comparison of a random intercept and standard regression model

(2013) Walter Bouwmeester et al.   BMC Medical Research Methodology

Assessing potential sources of clustering in individually randomised trials

(2013) Brennan C Kahan et al.   BMC Medical Research Methodology

Ongoing monitoring of data clustering in multicenter studies

(2012) Lauren B Guthrie et al.   BMC Medical Research Methodology

A Quantitative Review of Ethnic Group Differences in Experimental Pain Response: Do Biology, Psychology, and Culture Matter?

(2012) Bridgett Rahim-Williams et al.   PAIN MEDICINE

Analysis of multicentre trials with continuous outcomes: when and how should we account for centre effects?

(2012) Brennan C. Kahan et al.   STATISTICS IN MEDICINE

Improving strategies for diagnosing ovarian cancer: a summary of the International Ovarian Tumor Analysis (IOTA) studies

(2012) J. Kaijser et al.   ULTRASOUND IN OBSTETRICS & GYNECOLOGY

External Validation of Diagnostic Models to Estimate the Risk of Malignancy in Adnexal Masses

(2011) C. Van Holsbeke et al.   CLINICAL CANCER RESEARCH

Ovarian cancer prediction in adnexal masses using ultrasound-based logistic regression models: a temporal and external validation study by the IOTA group

(2010) D. Timmerman et al.   ULTRASOUND IN OBSTETRICS & GYNECOLOGY

Prospective Internal Validation of Mathematical Models to Predict Malignancy in Adnexal Masses: Results from the International Ovarian Tumor Analysis Study

(2009) C. Van Holsbeke et al.   CLINICAL CANCER RESEARCH

Multicenter Collaboration in Observational Research: Improving Generalizability and Efficiency

(2009) Sheila Sprague et al.   JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME

Prediction in multilevel generalized linear models

(2009) Anders Skrondal et al.   JOURNAL OF THE ROYAL STATISTICAL SOCIETY SERIES A-STATISTICS IN SOCIETY

Imputing missing covariate values for the Cox model

(2009) Ian R. White et al.   STATISTICS IN MEDICINE