Principles of Data Analysis and Interpretation under Clinical Studies: Prompting Points Principles of Data Analysis and Interpretation
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Once accurate data collection is completed under a clinical study, to generate quality evidence regarding informed decisions for clinical/ public health practice, two important questions arise: how to analyse data appropriately?; and how to interpret the analytical results accurately? For this, one has to follow certain basic principles of data analysis and interpretation. Further, sometimes even analytical methods may be same regardless of involved research questions, hypotheses and objectives of the study, but interpretation is mainly guided by study design. The present write-up has briefly described these principles and their related aspects to make the readers aware about them while dealing with data analysis and interpretation under any clinical study.
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1. Dwivedi SN. What are the major research methodology steps under a clinical study? Central India Journal of Medical Research. 2023; 2(2):4-9.
2. WHO. Health Research Methodology (A Guide for Training in Research Methods). 1992. Oxford University Press, Delhi.
3. Dwivedi SN. Understanding of study designs in clinical research: Major prompting points. Central India Journal of Medical Research. 2024; 3(3):12-15.
4. Dwivedi SN. How to Formulate a Research Question, Hypothesis and Objective for a Clinical Study? Central India Journal of Medical Research. 2023; 2(3):1-5.
5. Armitage P, Berry G, Matthews JNS. Statistics in Medical Research. Fourth Edition. Wiley Inter Science. 2008. ISBN: 9780632052578.
6. KR Sundaram, SN Dwivedi, V Sreenivas. Medical Statistics: Principles & Methods. Wolters and Kluwer (Health), New Delhi. 2015 (Second Edition).
7. Altman Douglas G. Practical Statistics for Medical Research. Chapman & Hall/ CRC. 1991. ISBN 0-412- 27630-5.
8. Dwivedi SN. Understanding of scales of measurements and its consideration in clinical research. Central India Journal of Medical Research. 2023; 2(1):13-16.
9. Dwivedi SN. What are the major sampling methods to obtain a representative sample for a clinical study? Central India Journal of Medical Research. 2024; 3(1):6-11.
10. Dwivedi SN. How to deal with sample size exploration and its reporting in clinical research? Central India Journal of Medical Research. 2022; 1(3):2-6.
11. Chandra, Prem, Dwivedi SN, Bal CS, Kumar Ajay, Pandey Arvind. Innovative role of imputation method/analysis in clinical trial on remnant ablation in differentiated thyroid cancer, Statistics in Transition: Journal of Polish Statistical Association, August, 2007, Vol. 8(2), pp.251-272.
12. Dwivedi SN. Biases including confounding and effect size modification in clinical research and their mitigations. Central India Journal of Medical Research. 2024; 3(2):6-12.
13. Dwivedi SN, Singh R. On assessing the child spacing effect of breastfeeding using Cox-proportional hazards models. Demography India. 2003; 32(2): 160-170.
14. Dwivedi SN, Sundaram KR. Epidemiological models and related simulation results for understanding of contraceptive adoption in India. Int J Epidemiol. 2000 Apr;29(2):300-7. doi: 10.1093/ije/29.2.300. PMID: 10817129.
15. STROBE Initiative. The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement: guidelines for reporting observational studies. Bull World Health Organ. 2007;85(11):867-72.
16. Piaggio, G., Elbourne, D. R., Altman, D. G., Pocock, S. J., Evans, S. J. W., for the CONSORT Group, (2006). Reporting of Noninferiority and Equivalence Randomized Trials: An Extension of the CONSORT Statement. JAMA 295: 1152-1160
17. Schulz KF, Altman DG, Moher D, for the CONSORT Group. CONSORT 2010 Statement: updated guidelines for reporting parallel group randomised trials. BMJ 2010;340:c332.
18. Matthew JP et al. The PRISMA 2020 statement: an updated guideline for reporting systematic reviews. BMJ. 2021 Mar 29:372:n71. doi: 10.1136/ bmj . n71
19. Bal C, Chandra P, Kumar A, Dwivedi SN. A randomized equivalence trial to determine the optimum dose of iodine-131 for remnant ablation in differentiated thyroid cancer. Nuclear medicine communications. 2012 Oct 1;33(10):1039-47.
20. Dwivedi R, Ramanujam B, Chandra PS, Sapra S, Gulati S, Kalaivani M, Garg A, Bal CS, Tripathi M, Dwivedi SN, Sagar R. Surgery for drug-resistant epilepsy in children. New England Journal of Medicine. 2017 Oct 26;377(17):1639-47.
21. Pathak M, Dwivedi SN, Deo SVS, Thakur B, Sreenivas V, Rath GK. Effectiveness of Added Targeted Therapies to Neoadjuvant Chemotherapy for Breast Cancer: A Systematic Review and Meta-analysis. Clin Breast Cancer. 2019 Dec;19(6):e690-e700. doi: 10.1016/j.clbc.2019.06.001. Epub 2019 Jun 20. PMID: 31337531.
22. Pathak M, Deo SV, Dwivedi SN, Thakur B, Sreenivas V, Rath GK. Regimens of neo-adjuvant chemotherapy in the treatment of breast cancer: A systematic review & network meta-analysis with PRISMA-NMA compliance. Crit Rev Oncol Hematol. 2020 Sep;153:103015. doi: 10.1016/j.critrevonc.2020.103015. Epub 2020 Jun 5. PMID: 32563131.