Related Experiment Video
Updated: Jun 28, 2025

Using Continuous Data Tracking Technology to Study Exercise Adherence in Pulmonary Rehabilitation
Published on: November 8, 2013
Reporting quality of heart failure randomized controlled trials 2000-2020: Temporal trends in adherence to CONSORT
Mohamed B Jalloh1, Veronica A Bot2, Cristiana Z Borjaille1
1Department of Medicine, McMaster University, Hamilton, ON, Canada.
Insights
Reporting quality in heart failure (HF) randomized controlled trials (RCTs) has improved but remains suboptimal. Adherence to the CONSORT statement for RCT reporting increased over 20 years, yet gaps persist.
Area of Science:
- Cardiology
- Clinical Trials Methodology
- Health Services Research
Background:
- Heart failure (HF) significantly impacts older adults' morbidity and mortality.
- Accurate interpretation of HF randomized controlled trials (RCTs) relies on transparent reporting.
- The CONsolidated Standards Of Reporting Trials (CONSORT) statement guides RCT reporting quality.
Purpose of the Study:
- To evaluate the reporting quality of HF RCTs in high-impact journals.
- To assess adherence to CONSORT guidelines in HF RCTs.
- To examine trends and factors influencing CONSORT adherence over time.
Main Methods:
- Searched MEDLINE, EMBASE, and CINAHL for HF RCTs published 2000-2020 in high-impact journals.
- Assessed adherence to CONSORT criteria (2010 update and original 1996 criteria).
- Used statistical tests (Jonckheere-Terpstra, multivariable linear regression) to analyze temporal trends and influencing factors.
Main Results:
- A total of 221 HF RCTs were analyzed, with suboptimal overall mean adherence (69.7%).
- Adherence significantly increased over the 20-year study period (p < 0.001).
- Factors associated with higher adherence included later publication (post-2010), two-group parallel randomization, and multicenter trials. Higher CONSORT adherence correlated with higher journal impact factors (r=0.312).
Conclusions:
- Reporting quality in HF RCTs has improved but remains suboptimal.
- Continued efforts are needed to enhance adherence to CONSORT guidelines for transparent and accurate reporting of HF research.
Aim:
Heart failure (HF) is a major cause of morbidity and mortality in older adults. Randomized controlled trials (RCTs) inform HF policy and practice, but the accurate interpretation of results is contingent on clear and transparent reporting. The CONsolidated Standards Of Reporting Trials (CONSORT) statement serves as a guide to RCT reporting. We evaluated the quality of reporting in HF RCTs in high-impact journals by assessing their adherence to CONSORT.
Methods And Results:
We searched MEDLINE, EMBASE and CINAHL for HF RCTs published in high-impact journals 2000-2020. We assessed the proportion of CONSORT criteria that individual HF RCTs adhered to, and used the Jonckheere-Terpstra test to examine temporal trends in adherence. Multivariable linear regression explored the association between trial characteristics and adherence to CONSORT. Primary analysis assessed adherence to CONSORT 2010 update. A sensitivity analysis assessed adherence to the original (1996) CONSORT criteria. Among 221 RCTs analysed, the mean (standard deviation [SD]) adherence was suboptimal overall (mean [SD] adherence 69.7 [11.5]%) (5513/7913 criteria), with a temporal increase in adherence over the 20-year period (p < 0.001). Factors associated with adherence included publication after versus during/before 2010 (β = 10.17, 95% confidence interval [CI] 7.64-12.70; p < 0.001); two-group parallel individual-level randomization versus other (including multi-group or cluster randomization) (β = 5.81, 95% CI 2.88-8.73; p < 0.001); and multicentre versus single-centre trials (β = 7.26, 95% CI 3.25-11.27; p < 0.001). There was no difference in trial adherence to the updated CONSORT (2010) versus the original (1996) CONSORT criteria, and temporal trends in adherence to both sets of criteria were similar, likely due to overlap between the two sets of criteria. Trials with greater adherence to CONSORT were published in higher impact factor journals, with a positive correlation (r = 0.312; p < 0.001).
Conclusion:
The quality of reporting in HF RCTs, as measured by CONSORT adherence, has improved over time but remains suboptimal.
More Related Videos
28:13Catheter Ablation in Combination With Left Atrial Appendage Closure for Atrial Fibrillation
Published on: February 26, 2013
05:41Left Anterior Descending Coronary Artery Ligation for Ischemia-Reperfusion Research: Model Improvement via Technical Modifications and Quality Control
Published on: December 16, 2022
Related Concept Videos
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System
Hazard Ratio
For example, in a clinical trial...
Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
Heart Failure Drugs: β-Blockers
Time Course of Drug Effect
Clinical Trials
There are four phases in a clinical trial. A phase one...