Clinical Research: Evidence-Based Medicine and Critical Reading

Research Methodology · Clinical Bases

How it begins

Un análisis exhaustivo y de nivel de especialización sobre los pilares epistemológicos, metodológicos, estadísticos y éticos que sustentan la toma de decisiones clínicas. Desde el rigor matemático de los modelos multivariados y las pruebas viscoelásticas del metaanálisis, hasta el desmontaje sistemático de sesgos mediante herramientas estandarizadas como RoB 2, STROBE y el sistema GRADE.

What it covers

1. Evidence-Based Medicine
2. Epistemology of Evidence-Based Medicine and the Scientific Paradigm
3. · 1.1 · Historical Evolution: From Physiopathological Rationalism to Rigorous Empiricism
4. · 1.2 · The Three Pillars of Decision Making in MBE
5. · 1.3 · Surrogate Outcomes vs. Relevant Clinical Outcomes
6. Formulation of Clinical Questions and Advanced Bibliographic Search
7. · 2.1 · The PICO Format and its Methodological Variations
8. · 2.2 · Controlled Language and Indexing Systems: MeSH and DeCS
9. · 2.3 · Biomedical Databases: Sensitivity vs. Search Specificity
10. Hierarchy of Evidence and Taxonomy of Study Designs
11. · 3.1 · Methodological Classification of Research Designs
12. · 3.2 · Historical Limitations of the Traditional Pyramid of Evidence
13. · 3.3 · Evolution of the Paradigm: The GRADE System
14. Randomized Clinical Trials (RCTs): Design, Execution and Variants
15. · 4.1 · Structural Architectures of the ECA
16. · 4.2 · Typology of the Clinical Trial according to its Contrast Goals
17. · 4.3 · Adaptive Designs and Intermediate Analysis
18. Randomization, Masking and Bias Control Methodologies
19. · 5.1 · Methodological Randomization Procedures
20. · 5.2 · Masking Levels and Alternative Designs
21. Principles of Inferential Biostatistics and Hypothesis Testing
22. · 6.1 · Structure of Hypothesis Testing and Decision Errors
23. · 6.2 · Confidence Intervals (95% CI) vs. P values
24. · 6.3 · The Problem of Multiple Comparisons
25. Survival Analysis and Multivariate Regression Models
26. · 7.1 · Censorship and Temporal Interaction
27. · 7.2 · Kaplan-Meier Estimator and Log-Rank Test
28. · 7.3 · Multivariate Regression Models and Confounding Control
29. Metrics of Association, Treatment Effect and Clinical Impact
30. · 8.1 · Relative Risk (RR) vs. Odds Ratio (OR)
31. · 8.2 · Absolute Clinical Impact Metrics: ARR, RRR and NNT / NNH
32. Intention to Treat (ITT) Analysis vs. By Protocol (PP)
33. · 9.1 · The "Once Randomized, Always Analyzed" Principle
34. · 9.2 Analysis by Protocol (PP) and Attrition Bias
35. · 9.3 · Data Loss Attribution Methods
36. Critical Reading of Clinical Trials: CONSORT Guide and Key Biases
37. · 10.1 · Risk of Bias Assessment using the Cochrane RoB 2 Tool
38. · 10.2 · Anatomy of the CONSORT Flowchart
39. Cohort and Case-Control Studies: STROBE Guide and Confusion Control
40. · 11.1 · STROBE Guide as a Quality Standard in Observational Epidemiology
41. · 11.2 · Critical Biases in Case and Control Studies
42. · 11.3 · Temporal Detection Bias in Screening and Cohort Studies
43. · 11.4 · Methodological and Statistical Strategies for Confusion Control
44. Evaluation of Diagnostic Tests: Sensitivity, Specificity and ROC Analysis
45. · 12.1 · Structure of the Contingency Table $2 \times 2$ and Intrinsic Metrics
46. · 12.2 · Extrinsic Dependence of Predictive Values
47. · 12.3 · Likelihood Ratios and Bayes' Theorem
48. · 12.4 · Analysis of ROC Curves and Area Under the Curve (AUC)
49. Systematic Reviews and Meta-Analyses: PRISMA and Heterogeneity Guide
50. · 13.1 · The PRISMA Declaration
51. · 13.2 · The Forest Plot
52. · 13.3 · Statistical Combination Models: Fixed Effects vs. Random Effects
53. · 13.4 · Analytical Quantification of Heterogeneity
54. Publication Bias and Methodological Quality Assessment
55. · 14.1 · Graphic and Statistical Detection Tools
56. · 14.2 · Quality Assessment Tools and Bias by Design
57. The GRADE System: Evaluation of the Certainty of the Evidence
58. · 15.1 · The Four Levels of Certainty of Evidence
59. · 15.2 · The Five Penalty Factors (Downgrading)
60. · 15.3 · The Three Bonus Factors (Upgrading)
61. Ethics in Clinical Research, Malpractice and Reporting Bias (Spin)
62. · 16.1 · Historical Milestones and Ethical Regulation Statements
63. · 16.2 · Conflicts of Interest and Funding Bias (The Funding Bias)
64. · 16.3 · The "Spin" Phenomenon (Results Presentation Bias)
65. · 16.4 · Summary of Key Principles in Critical Reading of Evidence