Published in J Med Internet Res on March 02, 2011
Behavioral intervention technologies: evidence review and recommendations for future research in mental health. Gen Hosp Psychiatry (2013) 2.17
Effectiveness of a self-guided web-based cannabis treatment program: randomized controlled trial. J Med Internet Res (2013) 1.63
Strategies to improve retention in randomised trials. Cochrane Database Syst Rev (2013) 1.58
The effectiveness of electronic screening and brief intervention for reducing levels of alcohol consumption: a systematic review and meta-analysis. J Med Internet Res (2014) 1.22
Strategies to improve retention in randomised trials: a Cochrane systematic review and meta-analysis. BMJ Open (2014) 1.20
Allowing for missing outcome data and incomplete uptake of randomised interventions, with application to an Internet-based alcohol trial. Stat Med (2011) 1.16
Attrition revisited: adherence and retention in a web-based alcohol trial. J Med Internet Res (2013) 1.12
Effectiveness of a Web-based multiple tailored smoking cessation program: a randomized controlled trial among Dutch adult smokers. J Med Internet Res (2012) 1.09
Impact of a U.S. antismoking national media campaign on beliefs, cognitions and quit intentions. Health Educ Res (2015) 1.06
Alcohol email assessment and feedback study dismantling effectiveness for university students (AMADEUS-1): study protocol for a randomized controlled trial. Trials (2012) 1.03
Familia adelante: a multi-risk prevention intervention for Latino families. J Prim Prev (2011) 1.02
The Sexunzipped trial: optimizing the design of online randomized controlled trials. J Med Internet Res (2013) 1.02
Effectiveness of a proactive mail-based alcohol Internet intervention for university students: dismantling the assessment and feedback components in a randomized controlled trial. J Med Internet Res (2012) 1.01
Impact of a web-based personally controlled health management system on influenza vaccination and health services utilization rates: a randomized controlled trial. J Am Med Inform Assoc (2012) 1.00
Understanding attrition from international Internet health interventions: a step towards global eHealth. Health Promot Int (2012) 0.95
Which bundles of features in a Web-based personally controlled health management system are associated with consumer help-seeking behaviors for physical and emotional well-being? J Med Internet Res (2013) 0.87
Effectiveness of a Web-based tailored interactive health communication application for patients with type 2 diabetes or chronic low back pain: randomized controlled trial. J Med Internet Res (2015) 0.87
Optimizing engagement with Internet-based health behaviour change interventions: comparison of self-assessment with and without tailored feedback using a mixed methods approach. Br J Health Psychol (2013) 0.86
Puzzling with online games (BAM-COG): reliability, validity, and feasibility of an online self-monitor for cognitive performance in aging adults. J Med Internet Res (2013) 0.85
Gamification and Adherence to Web-Based Mental Health Interventions: A Systematic Review. JMIR Ment Health (2016) 0.83
Evaluation of the effects of an offer of a monetary incentive on the rate of questionnaire return during follow-up of a clinical trial: a randomised study within a trial. BMC Med Res Methodol (2016) 0.83
A tailored, dialogue-based health communication application for patients with chronic low back pain: study protocol of a randomised controlled trial. BMC Med Inform Decis Mak (2013) 0.83
Participating in online mental health interventions: who is most likely to sign up and why? Depress Res Treat (2014) 0.82
A tailored, interactive health communication application for patients with type 2 diabetes: study protocol of a randomised controlled trial. BMC Med Inform Decis Mak (2013) 0.81
Methods for Evaluating Respondent Attrition in Web-Based Surveys. J Med Internet Res (2016) 0.80
Conceptualising engagement with digital behaviour change interventions: a systematic review using principles from critical interpretive synthesis. Transl Behav Med (2016) 0.80
Vorvida: study protocol of a randomized controlled trial testing the effectiveness of Internet-based self-help program for the reduction of alcohol consumption for adults. BMC Psychiatry (2016) 0.75
A review of web based interventions focusing on alcohol use. Ann Med Health Sci Res (2014) 0.75
Minimizing Attrition for Multi-Site Emergency Care Research. Acad Emerg Med (2016) 0.75
Collecting Biospecimens From an Internet-Based Prospective Cohort Study of Inflammatory Bowel Disease (CCFA Partners): A Feasibility Study. JMIR Res Protoc (2016) 0.75
Preventing anxiety problems in children with Cool Little Kids Online: study protocol for a randomised controlled trial. Trials (2015) 0.75
EuroQol--a new facility for the measurement of health-related quality of life. Health Policy (1990) 59.70
The AUDIT alcohol consumption questions (AUDIT-C): an effective brief screening test for problem drinking. Ambulatory Care Quality Improvement Project (ACQUIP). Alcohol Use Disorders Identification Test. Arch Intern Med (1998) 16.62
The law of attrition. J Med Internet Res (2005) 15.30
Methods to increase response to postal and electronic questionnaires. Cochrane Database Syst Rev (2009) 10.85
Barriers to participation in randomised controlled trials: a systematic review. J Clin Epidemiol (1999) 9.20
Factors that limit the quality, number and progress of randomised controlled trials. Health Technol Assess (1999) 7.00
Ethical issues in the design and conduct of randomised controlled trials. Health Technol Assess (1998) 4.55
Recruitment and retention of an online sample for an HIV prevention intervention targeting men who have sex with men: the Smart Sex Quest Project. AIDS Care (2004) 2.99
Web-based screening and brief intervention for hazardous drinking: a double-blind randomized controlled trial. Addiction (2004) 2.99
Rates and determinants of repeated participation in a web-based behavior change program for healthy body weight and healthy lifestyle. J Med Internet Res (2007) 2.77
Methodological challenges in online trials. J Med Internet Res (2009) 2.64
Reasons for participating in randomised controlled trials: conditional altruism and considerations for self. Trials (2010) 2.25
Development of the Leeds Dependence Questionnaire (LDQ): a questionnaire to measure alcohol and opiate dependence in the context of a treatment evaluation package. Addiction (1994) 2.11
Development of a psychologically enhanced interactive online intervention for hazardous drinking. Alcohol Alcohol (2008) 1.71
A systematic review examining the literature on attitudes of patients with advanced cancer toward research. J Pain Symptom Manage (2009) 1.63
Why patients continue to participate in clinical research. Arch Intern Med (2008) 1.62
Effect of incentives and mailing features on online health program enrollment. Am J Prev Med (2008) 1.61
The DYD-RCT protocol: an on-line randomised controlled trial of an interactive computer-based intervention compared with a standard information website to reduce alcohol consumption among hazardous drinkers. BMC Public Health (2007) 1.56
Following up nonrespondents to an online weight management intervention: randomized trial comparing mail versus telephone. J Med Internet Res (2007) 1.39
Duty, desire or indifference? A qualitative study of patient decisions about recruitment to an epilepsy treatment trial. Trials (2006) 1.31
Response and non-response to postal questionnaire follow-up in a clinical trial--a qualitative study of the patient's perspective. J Eval Clin Pract (2007) 1.22
The Alcohol Problems Questionnaire: reliability and validity. Drug Alcohol Depend (1994) 1.19
Test-retest reliability of an online measure of past week alcohol consumption (the TOT-AL), and comparison with face-to-face interview. Addict Behav (2008) 1.16
Incentives for survey participation when are they "coercive"? Am J Prev Med (2006) 1.12
Measuring inconsistency in meta-analyses. BMJ (2003) 128.20
Quantifying heterogeneity in a meta-analysis. Stat Med (2002) 83.16
Multiple imputation for missing data in epidemiological and clinical research: potential and pitfalls. BMJ (2009) 19.23
Association of dietary, circulating, and supplement fatty acids with coronary risk: a systematic review and meta-analysis. Ann Intern Med (2014) 12.79
C-reactive protein concentration and risk of coronary heart disease, stroke, and mortality: an individual participant meta-analysis. Lancet (2009) 11.81
Major lipids, apolipoproteins, and risk of vascular disease. JAMA (2009) 10.58
Designing and evaluating complex interventions to improve health care. BMJ (2007) 9.78
Separate and combined associations of body-mass index and abdominal adiposity with cardiovascular disease: collaborative analysis of 58 prospective studies. Lancet (2011) 9.07
Endovascular versus open repair of abdominal aortic aneurysm. N Engl J Med (2010) 7.83
Controlling the risk of spurious findings from meta-regression. Stat Med (2004) 6.80
Liver cirrhosis mortality rates in Britain from 1950 to 2002: an analysis of routine data. Lancet (2006) 6.56
C-reactive protein, fibrinogen, and cardiovascular disease prediction. N Engl J Med (2012) 6.39
A re-evaluation of random-effects meta-analysis. J R Stat Soc Ser A Stat Soc (2009) 5.81
Lipoprotein(a) concentration and the risk of coronary heart disease, stroke, and nonvascular mortality. JAMA (2009) 5.63
Plasma fibrinogen level and the risk of major cardiovascular diseases and nonvascular mortality: an individual participant meta-analysis. JAMA (2005) 5.60
Are missing outcome data adequately handled? A review of published randomized controlled trials in major medical journals. Clin Trials (2004) 5.26
Multivariate meta-analysis: potential and promise. Stat Med (2011) 5.26
Lipoprotein-associated phospholipase A(2) and risk of coronary disease, stroke, and mortality: collaborative analysis of 32 prospective studies. Lancet (2010) 4.46
Understanding the implementation of complex interventions in health care: the normalization process model. BMC Health Serv Res (2007) 3.95
Clinical efficacy of lenalidomide in patients with relapsed or refractory chronic lymphocytic leukemia: results of a phase II study. J Clin Oncol (2006) 3.95
Lipid-related markers and cardiovascular disease prediction. JAMA (2012) 3.91
Randomized trial to determine the effect of nebivolol on mortality and cardiovascular hospital admission in elderly patients with heart failure (SENIORS). Eur Heart J (2005) 3.89
Development of a theory of implementation and integration: Normalization Process Theory. Implement Sci (2009) 3.68
Sensitivity analysis after multiple imputation under missing at random: a weighting approach. Stat Methods Med Res (2007) 3.67
Association between C reactive protein and coronary heart disease: mendelian randomisation analysis based on individual participant data. BMJ (2011) 3.65
Review of inverse probability weighting for dealing with missing data. Stat Methods Med Res (2011) 3.56
A sustained mortality benefit from screening for abdominal aortic aneurysm. Ann Intern Med (2007) 3.27
Meta-analysis of individual patient data from randomized trials: a review of methods used in practice. Clin Trials (2005) 3.19
Rapid-learning system for cancer care. J Clin Oncol (2010) 3.13
Abdominal aortic aneurysm expansion: risk factors and time intervals for surveillance. Circulation (2004) 3.07
Extending DerSimonian and Laird's methodology to perform multivariate random effects meta-analyses. Stat Med (2010) 3.07
Endovascular or open repair strategy for ruptured abdominal aortic aneurysm: 30 day outcomes from IMPROVE randomised trial. BMJ (2014) 2.98
Loss of tolerance and overdose mortality after inpatient opiate detoxification: follow up study. BMJ (2003) 2.80
Bias modelling in evidence synthesis. J R Stat Soc Ser A Stat Soc (2009) 2.74
Adjusting for partially missing baseline measurements in randomized trials. Stat Med (2005) 2.70
Effectiveness of screening and brief alcohol intervention in primary care (SIPS trial): pragmatic cluster randomised controlled trial. BMJ (2013) 2.68
How should variable selection be performed with multiply imputed data? Stat Med (2008) 2.65
Methodological challenges in online trials. J Med Internet Res (2009) 2.64
Predicting the extent of heterogeneity in meta-analysis, using empirical data from the Cochrane Database of Systematic Reviews. Int J Epidemiol (2012) 2.58
Quantifying the impact of between-study heterogeneity in multivariate meta-analyses. Stat Med (2012) 2.52
Factors that promote or inhibit the implementation of e-health systems: an explanatory systematic review. Bull World Health Organ (2012) 2.51
Applying community-oriented primary care methods in British general practice: a case study. Br J Gen Pract (2002) 2.46
Mediation and moderation of treatment effects in randomised controlled trials of complex interventions. Stat Methods Med Res (2009) 2.43
Poorer self assessed health in a prospective study of men with screen detected abdominal aortic aneurysm: a predictor or a consequence of screening outcome? J Epidemiol Community Health (2004) 2.42
Consultations about changing behaviour. BMJ (2005) 2.37
Mendelian randomization analysis with multiple genetic variants using summarized data. Genet Epidemiol (2013) 2.34
When smokers are resistant to change: experimental analysis of the effect of patient resistance on practitioner behaviour. Addiction (2005) 2.31
Structure based drug design: development of potent and selective factor IXa (FIXa) inhibitors. J Med Chem (2010) 2.28
Review of statistical methods for analysing healthcare resources and costs. Health Econ (2010) 2.27
Internet-based interactive health intervention for the promotion of sensible drinking: patterns of use and potential impact on members of the general public. J Med Internet Res (2007) 2.23
Training practitioners to deliver opportunistic multiple behaviour change counselling in primary care: a cluster randomised trial. BMJ (2013) 2.22
Regression dilution methods for meta-analysis: assessing long-term variability in plasma fibrinogen among 27,247 adults in 15 prospective studies. Int J Epidemiol (2006) 2.22
Meta-analysis of studies of alcohol and breast cancer with consideration of the methodological issues. Cancer Causes Control (2006) 2.17
Group art therapy as an adjunctive treatment for people with schizophrenia: multicentre pragmatic randomised trial. BMJ (2012) 2.17
Computer-based diabetes self-management interventions for adults with type 2 diabetes mellitus. Cochrane Database Syst Rev (2013) 2.16
Distinct clinical and prognostic features of infiltrating lobular carcinoma of the breast: combined results of 15 International Breast Cancer Study Group clinical trials. J Clin Oncol (2008) 2.14
Multivariable Mendelian randomization: the use of pleiotropic genetic variants to estimate causal effects. Am J Epidemiol (2015) 2.14
How primary care networks can help integrate academic and service initiatives in primary care. Ann Fam Med (2006) 2.12
A quantitative meta-analysis of population-based studies of premorbid intelligence and schizophrenia. Schizophr Res (2011) 2.09
Dietary fiber and colorectal cancer risk: a nested case-control study using food diaries. J Natl Cancer Inst (2010) 2.07
Use of allele scores as instrumental variables for Mendelian randomization. Int J Epidemiol (2013) 2.06
Immunomodulatory drugs stimulate natural killer-cell function, alter cytokine production by dendritic cells, and inhibit angiogenesis enhancing the anti-tumour activity of rituximab in vivo. Br J Haematol (2007) 2.05
Interactive computer-based interventions for sexual health promotion. Cochrane Database Syst Rev (2010) 2.04
Can stand-alone computer-based interventions reduce alcohol consumption? A systematic review. Addiction (2010) 1.97
Economics of smoking cessation. BMJ (2004) 1.97
Patients' views and feelings on the community-based teaching of undergraduate medical students: a qualitative study. Fam Pract (2002) 1.95
Randomised controlled trial of acute mental health care by a crisis resolution team: the north Islington crisis study. BMJ (2005) 1.94
Methods for assessing the cost-effectiveness of public health interventions: key challenges and recommendations. Health Policy (2009) 1.94
Endovascular repair of aortic aneurysm in patients physically ineligible for open repair. N Engl J Med (2010) 1.92
Internet interventions for long-term conditions: patient and caregiver quality criteria. J Med Internet Res (2006) 1.89
Clustering by health professional in individually randomised trials. BMJ (2005) 1.85
Understanding the normalization of telemedicine services through qualitative evaluation. J Am Med Inform Assoc (2003) 1.85
Brief interventions in routine health care: a population-based study of conversations about alcohol in Sweden. Addiction (2011) 1.78
Second-trimester maternal serum levels of alpha-fetoprotein and the subsequent risk of sudden infant death syndrome. N Engl J Med (2004) 1.78
Mode of delivery and the risk of delivery-related perinatal death among twins at term: a retrospective cohort study of 8073 births. BJOG (2005) 1.76
The state of primary-care research. Lancet (2004) 1.76
Imputation methods for missing outcome data in meta-analysis of clinical trials. Clin Trials (2008) 1.76
Avoiding bias from weak instruments in Mendelian randomization studies. Int J Epidemiol (2011) 1.75
Better services and more choice in the NHS. BMJ (2006) 1.72
Development of a psychologically enhanced interactive online intervention for hazardous drinking. Alcohol Alcohol (2008) 1.71
Use of Mendelian randomisation to assess potential benefit of clinical intervention. BMJ (2012) 1.70
Correcting for optimistic prediction in small data sets. Am J Epidemiol (2014) 1.69
Outcomes of crises before and after introduction of a crisis resolution team. Br J Psychiatry (2005) 1.68
The effect of measurement error in risk factors that change over time in cohort studies: do simple methods overcorrect for 'regression dilution'? Int J Epidemiol (2005) 1.66