Randomized controlled comparison of cross-sectional survey approaches to optimize follow-up completeness in clinical studies

SMS text pre-notification and delivery of reminder e-mails to increase response rates to postal questionnaires in the SUSPEND trial: a factorial design, randomised controlled trial

(2015) Kathryn Starr et al.   Trials

Completeness of Follow-Up Determines Validity of Study Findings: Results of a Prospective Repeated Measures Cohort Study

(2015) Regula S. von Allmen et al.   PLoS One

Strategies to improve retention in randomised trials: a Cochrane systematic review and meta-analysis

(2014) V C Brueton et al.   BMJ Open

Better Reporting of Scientific Studies: Why It Matters

(2013)   PLOS MEDICINE

A randomised trial and economic evaluation of the effect of response mode on response rate, response bias, and item non-response in a survey of doctors

(2011) Anthony Scott et al.   BMC Medical Research Methodology

Effect of questionnaire length, personalisation and reminder type on response rate to a complex postal survey: randomised controlled trial

(2011) Shannon Sahlqvist et al.   BMC Medical Research Methodology

A systematic review of the effect of retention methods in population-based cohort studies

(2011) Cara L Booker et al.   BMC PUBLIC HEALTH

2011 Compendium of Physical Activities

(2011) BARBARA E. AINSWORTH et al.   MEDICINE AND SCIENCE IN SPORTS AND EXERCISE

Would loss to follow-up bias the outcome evaluation of patients operated for degenerative disorders of the lumbar spine?

(2010) Tore K Solberg et al.   Acta Orthopaedica

Factors influencing the response to postal questionnaire surveys about respiratory symptoms

(2008) Michelle Hazell et al.   Primary Care Respiratory Journal