Cited by 1,024Statistical Methods in EpidemiologyStatistical Methods in Clinical TrialsProbability and Statistical Research

The DOI matches its Crossref record; 19 of the 20 references it cites were found in a registry or an index.

Sample size estimation and power analysis for clinical research studies

Open access

Suresh, KP, Chandrashekara, S·2012·Journal of Human Reproductive Sciences

DOI 10.4103/0974-1208.97779PMC PMC3409926

Open this paper in CoChat — free account

Abstract

Determining the optimal sample size for a study assures an adequate power to detect statistical significance. Hence, it is a critical step in the design of a planned research protocol. Using too many participants in a study is expensive and exposes more number of subjects to procedure. Similarly, if study is underpowered, it will be statistically inconclusive and may make the whole protocol a failure. This paper covers the essentials in calculating power and sample size for a variety of applied study designs. Sample size computation for single group mean, survey type of studies, 2 group studies based on means and proportions or rates, correlation studies and for case-control for assessing the categorical outcome are presented in detail.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

Integrity signals

Registry

Crossref · 10.4103/0974-1208.97779This paper is marked retracted.

Cites

19 of 19 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Statistical Methods for Rates and Proportions
Fleiss, J. L., Levin, B., & Paik, M. C. (2003) · Wiley Series in Probability and Statistics · doi:10.1002/0471445428 · Cited by 18,646
Practical Statistics for Medical Research.
Walter, S., & Altman, D. G. (1992) · Biometrics · doi:10.2307/2532320 · Cited by 11,666
Practical Statistics for Medical Research
Altman, D. G. (1990) · doi:10.1201/9780429258589 · Cited by 10,668
Categorical Data Analysis
Hapeman, D. E., & Agresti, A. (1991) · Technometrics · doi:10.1080/00401706.1991.10484817 · Cited by 9,407
Organizational research: Determining appropriate sample size in survey research
James, E. B. (2001) · Cited by 2,900
Sample Size Determination in Health Studies: A Practical Manual.
Lachenbruch, P. A., Lwanga, S. K., & Lemeshow, S. (1991) · Journal of the American Statistical Association · doi:10.2307/2290547 · Cited by 2,097
Categorical Data Analysis
(2010) · Sage eBooks · doi:10.4135/9781412961288.n40 · Cited by 2,028
Introduction to sample size determination and power analysis for clinical trials
Lachin, J. M. (1981) · Controlled Clinical Trials · doi:10.1016/0197-2456(81)90001-5 · Cited by 1,012
Statistics review 4: sample size calculations.
Whitley, E., & Ball, J. (2002) · Critical Care · doi:10.1186/cc1521 · Cited by 610
Statistical Power, Sample Size, and Their Reporting in Randomized Controlled Trials
Moher, D. (1994) · JAMA: The Journal of the American Medical Association · doi:10.1001/jama.1994.03520020048013 · Cited by 608

Flagged first, then by citations

Show all 20 references

1 of the 20 references couldn’t be matched to a known paper.

Sorted by citations

Items 301–400 of 1,000

Clinical correlation between N-terminal pro-b-type natriuretic peptide and angiographic coronary atherosclerosis
Ribeiro, D. G. L., Silva, R. P., Barboza, D. R. M. M., Lima‐Júnior, R. C. P., & Ribeiro, R. A. (2014) · Clinics · doi:10.6061/clinics/2014(06)07 · Cited by 11
General decision-making style and clinical competence of nurses working in the educational hospitals affiliated to Kermanshah University of Medical Sciences in 2014
Abdi, A., Assadi, P., Mohamadyari, T., & Miri, J. (2015) · Journal of Nursing Education · Cited by 11
Breastfeeding jaundice: how big is the problem?
Xavier, R., Manoj, C., & Cherian, V. J. (2016) · International Journal of Contemporary Pediatrics · doi:10.18203/2349-3291.ijcp20160948 · Cited by 11
Status of oxidant, antioxidantand serum enzymes in thalassaemic children receiving multiple blood transfusions.
Asif, M., Manzoor, Z., Farooq, M. S., Munawar, S. H., Aziz, A., & Khan, I. A. (2015) · PubMed · Cited by 11
Participation of farmers in irrigation water management in Indonesia: a review
Fulazzaky, M. A. (2016) · Irrigation and Drainage · doi:10.1002/ird.2085 · Cited by 11
Outcome of neonatal ventilation: a prospective and cross-sectional study in tertiary care centre
Sharma, R., & Baheti, S. (2017) · International Journal of Contemporary Pediatrics · doi:10.18203/2349-3291.ijcp20173793 · Cited by 11
SAMPLING METHODS AND APPROPRIATE SAMPLE SIZE DETERMINATION: A CONCISE OVERVIEW
Şanlı, S. (2022) · Pamukkale University Journal of Social Sciences Institute · doi:10.30794/pausbed.1117138 · Cited by 12
The emotional and social concerns of mothers of children with cleft palate: A cross-sectional study.
El-Hneiti, M., Shehadeh, J. H., Qatamin, B., & Shaheen, A. (2024) · Journal of pediatric nursing · doi:10.1016/j.pedn.2024.02.024 · Cited by 9
Evaluation of disaster risk perception and influencing factors among hospital personnel using structural equation modeling
Gendeshmin, S. B., Rostamzadeh, S., & Dowlati, M. (2025) · Scientific Reports · doi:10.1038/s41598-025-97747-0 · Cited by 12
Impact of life kinetik training on balance, agility, jumping, proprioception, and cognitive function in preadolescent recreational fencing athletes: a randomized controlled trial
Yarayan, Y. E., Keskin, K., Çelik, O. B., Güder, B. C., Kurtipek, S., Aslan, M., Söğüt, T., Durhan, T. A., Alkhamees, N. H., Sheeha, B. H. B., et al. (2025) · BMC Sports Science Medicine and Rehabilitation · doi:10.1186/s13102-025-01186-3 · Cited by 10
Rationale and design of randomized controlled trial protocol of cardiovascular rehabilitation based on the use of telemedicine technology in the Czech Republic (CR-GPS)
Baťalík, L., Dosbaba, F., Hartman, M., Batalikova, K., & Špinar, J. (2018) · Medicine · doi:10.1097/md.0000000000012385 · Cited by 10
Correlation of knowledge and attitude on the practice of pregnant women’s oral health
Azizah, M. N., Ramadhani, M. N., Suwargiani, A. A., & Susilawati, S. (2021) · Padjadjaran Journal of Dentistry · doi:10.24198/pjd.vol33no1.24845 · Cited by 10
Study of stakeholders’ perceptions of climate change and its impact on mountain communities in central Himalaya, India
Vijhani, A., Sinha, V. S. P., Vishwakarma, C. A., Singh, P., Pandey, A., & Govindan, M. (2023) · Environmental Development · doi:10.1016/j.envdev.2023.100824 · Cited by 10
Association of Nutrient Intake with Non-Alcoholic Fatty Liver Disease and Liver Steatosis in Adult Indian Population –A Case Control Study
Chaturvedi, S., Tripathi, D., Vikram, N. K., Madhusudan, K. S., Pandey, R. M., & Bhatia, N. (2022) · Human Nutrition & Metabolism · doi:10.1016/j.hnm.2023.200188 · Cited by 10
Classification in Para skiing: do better performing skiers have better visual functions?
Stalin, A., & Dalton, K. (2023) · Frontiers in Sports and Active Living · doi:10.3389/fspor.2023.1046318 · Cited by 10
Potential Toxic Elements and Their Carcinogenic and Non-Carcinogenic Risk Assessment in Some Commercially Important Fish Species from a Ramsar Site
Hossain, M. B., Ahmed, M. M., Jolly, Y. N., Nur, A.-A. U., Sultana, S., Akter, S., Yu, Q., Paray, B. A., & Arai, T. (2023) · Biology · doi:10.3390/biology12081072 · Cited by 10
Impact of a Dual-Ring Wound Protector on Outcome After Elective Surgery for Colorectal Cancer
Chen, C., Tsai, H., Huang, C., Yeh, Y., Ma, C., Chang, T., Su, W., & Wang, J. (2019) · Journal of Surgical Research · doi:10.1016/j.jss.2019.06.014 · Cited by 10
Threat Perceptions, Avoidance Motivation and Security Behaviors Correlations
Djatsa, F. (2019) · Journal of Information Security · doi:10.4236/jis.2020.111002 · Cited by 13
Perception and adoption of artificial pollination technology in cocoa production: Evidence from Ghana
Wongnaa, C. A., Kyei, A. B., Apike, I. A., Awunyo‐Vitor, D., & Dziwornu, R. K. (2021) · African Journal of Science Technology Innovation and Development · doi:10.1080/20421338.2021.1977089 · Cited by 10
Investigating the risk factors for seroprevalence and the correlation between CD4+ T-cell count and humoral antibody responses to Toxoplasma gondii infection amongst HIV patients in the Bamenda Health District, Cameroon
Fang, E. E., Nyasa, R. B., Ndi, E. M., Zofou, D., Kwenti, T. E., Lepezeu, E. P., Titanji, V. P. K., & Ndip, R. N. (2021) · PLoS ONE · doi:10.1371/journal.pone.0256947 · Cited by 10
The Effects of Aerobic and Resistance Exercises on the Cognitive and Physical Function of Persons with Mild Dementia: A Randomized Controlled Trial Protocol
Papatsimpas, V., Vrouva, S., Papadopoulou, Μ., Papathanasiou, G., & Bakalidou, D. (2023) · Healthcare · doi:10.3390/healthcare11050677 · Cited by 10
SWORTS: A Scientific Workflow Retrieval Approach by Learning Textual and Structural Semantics
Gu, Y., Cao, J., Qian, S., & Guan, W. (2023) · IEEE Transactions on Services Computing · doi:10.1109/tsc.2023.3315478 · Cited by 10
“Impact of comprehendible learning modes on oral health among visually impaired adults”
Vyas, S., Nagarajappa, S., Dasar, P., & Mishra, P. (2018) · Special Care in Dentistry · doi:10.1111/scd.12313 · Cited by 10
Bullying and victimization in schools: Causal relationship between adolescent disruptive behavior, sleep schedules, and extended school hours
Figueiredo, S. (2023) · Psychology in the Schools · doi:10.1002/pits.23029 · Cited by 12
Both Adjustable and Fixed Loop Hamstring Tendon Graft Fixation Have Similar Clinical and Patient‐Reported Outcomes in Anterior Cruciate Ligament Reconstruction
Heng, C. H. Y., Wong, J. Y. S., & Tan, A. H. C. (2023) · Arthroscopy Sports Medicine and Rehabilitation · doi:10.1016/j.asmr.2023.100775 · Cited by 9
Gender Disparity in Hemodialysis Practices and Mortality: A Nationwide Cross-Sectional Observational Study
Shankar, M., Sankarasubbaiyan, S., Kasiviswanathan, S., Shah, K. D., & Luyckx, V. A. (2024) · Indian Journal of Nephrology · doi:10.25259/ijn_559_23 · Cited by 10
The impact of climate change anxiety on premenstrual syndrome: A cross‐sectional study
Sağlam, H. Y., & Şahin, B. M. (2024) · Journal of Evaluation in Clinical Practice · doi:10.1111/jep.14177 · Cited by 9
Assessing physical literacy and establishing normative reference curves for 8–12-year-old children from South Punjab, Pakistan: The PAK-IPPL cross-sectional study
Hadier, S. G., Ying-hai, L., Long, L., Hamdani, S. D., & Hamdani, S. M. Z. H. (2025) · PLoS ONE · doi:10.1371/journal.pone.0312916 · Cited by 9
Inter-minority Relations: Factors Shaping Cognitive and Affective Intergroup Attitudes between Asian and Black Americans
Nicholson, H. L., Yoo, N., Okazaki, S., Chang, D. F., & Craig, M. A. (2024) · Social Problems · doi:10.1093/socpro/spae075 · Cited by 9
Exploring the mediating role of social support in sports participation and academic burnout among adolescent students in China
Gao, J., Tian, X., & Wu, H. (2025) · Frontiers in Psychology · doi:10.3389/fpsyg.2025.1591460 · Cited by 9
The relationship between self-directed learning ability and clinical competence among nursing students: a cross-sectional descriptive study
Badakhshan, R., Badakhshan, S., Bagheriyeh, F., & Hosseinzadegan, F. (2025) · BMC Medical Education · doi:10.1186/s12909-025-08108-4 · Cited by 9
Abrogation of aberrant glycolytic interactions eliminates senescent cells and alleviates aging-related dysfunctions
Mikawa, T., Kameda, M., Ikari, S., Shibata, E., Liu, S., Miyagawa, S., Ono, K., Ito, T., Yoshizawa, A., Sugimoto, M., et al. (2025) · Signal Transduction and Targeted Therapy · doi:10.1038/s41392-025-02502-6 · Cited by 10
Behavioural risk factors for non-communicable diseases among undergraduates in south western Nigeria: knowledge, prevalence and correlates: a comparative cross-sectional study
Iken, O., Adebayo, A. M., Popoola, O. A., & POPOOLA, O. (2020) · Journal of preventive medicine and hygiene · doi:10.15167/2421-4248/jpmh2020.61.4.1523 · Cited by 9
Use of an automatic needle-free injection device for foot-and-mouth disease vaccination in dairy heifers
Wataradee, S., Boonserm, T., Sangaprakhon, C., Ajariyakhajorn, K., & Inchaisri, C. (2021) · Veterinární Medicína · doi:10.17221/4/2020-vetmed · Cited by 9
A non-interventional study of microcirculation dynamics in allogeneic hematopoietic cell transplantation survivors compared to controls: evidence of impaired microvascular response regardless of conventional cardiovascular risk factors
Gavriilaki, E., Anyfanti, P., Sakellari, I., Batsis, I., Dolgyras, P., Lazaridis, A. A., Nikolaidou, B., Koletsos, N., Gavriilaki, M., Zarifis, I., et al. (2021) · Bone Marrow Transplantation · doi:10.1038/s41409-021-01500-w · Cited by 9
The Effect of Acupuncture on Hand and Wrist Pain Intensity, Functional Status, and Quality of Life in Adults: A Systematic Review
Trinh, K., Zhou, F., Belski, N., Deng, J., & Wong, C. Y. (2022) · Medical Acupuncture · doi:10.1089/acu.2021.0046 · Cited by 9
Vitamin D supplementation improves the therapeutic effect of mometasone on allergic rhinitis
Guo, M. (2023) · Acta Biochimica Polonica · doi:10.18388/abp.2020_6637 · Cited by 9
Relationship between untreated dental caries and dental neglect among mentally handicapped children: A cross-sectional study
Kumar, A., Puranik, M. P., & Sowmya, K. (2015) · Journal of Indian Association of Public Health Dentistry · doi:10.4103/2319-5932.159046 · Cited by 9
Comparison of intubating laryngeal mask airway and fiberoptic bronchoscopy for endotracheal intubation in patients undergoing cervical discectomy
Chalam, K., & Gupta, J. (2016) · Journal of Anaesthesiology Clinical Pharmacology · doi:10.4103/0970-9185.194765 · Cited by 9
MiRNAs for the Diagnostic Screening of Early Stages of Colon Cancer in Stool or Blood*
Ahmed, F., Ahmed, N. C., Gouda, M., & Vos, P. W. (2017) · Surgical Case Reports and Reviews · doi:10.15761/scrr.1000103 · Cited by 9
Hausa translation, cross-cultural adaptation, and assessment of psychometric properties of the motor activity log
Sada, A., Abdullahi, A., & Hassan, A. B. (2019) · Disability and Rehabilitation · doi:10.1080/09638288.2019.1698663 · Cited by 9
Warming blood prior to transfusion using latent heat
Roxby, D. J., Sobieraj‐Teague, M., von Wielligh, J., Sinha, R. K., Kuss, B. J., Smith, A., & McEwen, M. (2020) · Emergency Medicine Australasia · doi:10.1111/1742-6723.13471 · Cited by 9
Psychological impact of the COVID-19 lockdown on Vietnamese community
Gan, C. E. C., Anh, D. L. T., & Nguyen, Q. T. T. (2021) · International Journal of Social Economics · doi:10.1108/ijse-08-2020-0552 · Cited by 9
Efficacy of herbal anti-microbial soap in Tinea corporis: A randomized controlled study
Tabassiya Kowser, R., Bhat, M. D. A., Zaman, R., & Najar, F. A. (2021) · Journal of Ethnopharmacology · doi:10.1016/j.jep.2021.114934 · Cited by 9
Technical note: investigating activity-induced 3d hand entheseal variation in a documented South African sample
Bousquié, L., Karakostis, F. A., Crèvecoeur, I., & Villotte, S. (2022) · Archaeological and Anthropological Sciences · doi:10.1007/s12520-022-01677-1 · Cited by 10
Atletik Zihinsel Enerjiyi Uyku Davranışları Bağlamında Tahmin Etme
Gülşen, D. B. A., Yarayan, Y. E., & YILDIZ, A. B. (2023) · CBÜ Beden Eğitimi ve Spor Bilimleri Dergisi · doi:10.33459/cbubesbd.1261294 · Cited by 11
6-Min walk-test data in healthy North-African subjects aged 16–40years
Bourahli, M.-K., Bougrida, M., Martani, M., Mehdioui, H., & Saad, H. B. (2015) · Egyptian Journal of Chest Diseases and Tuberculosis · doi:10.1016/j.ejcdt.2015.08.003 · Cited by 10
Comparative study between open and laparoscopic ventral hernia repair
Thota, A., Ravishankar, K. S., Rao, K. M., Ramesh, B. H., & Ananda, B. B. (2017) · Journal of Dr. YSR University of Health Sciences. · doi:10.4103/jdrntruhs.jdrntruhs_115_16 · Cited by 9
The effect of intravenous infusion of N-acetyl cysteine in cirrhotic patients undergoing liver resection: A randomized controlled trial
Yassen, K. A., Sayed, E., Gaballah, K. M., Younis, E. A., & El-Einen, A. (2017) · Journal of Anaesthesiology Clinical Pharmacology · doi:10.4103/joacp.joacp_70_17 · Cited by 9
Ibuprofen versus paracetamol for treating fever in preschool children in Nigeria: a randomized clinical trial of effectiveness and safety.
Alaje, E. O., Udoh, E. E., Akande, P. A., Odey, F. A., & Meremikwu, M. M. (2020) · PubMed Central · doi:10.11604/pamj.2020.36.350.21393 · Cited by 9
Mirror, mirror - Does the fitness club industry have a body image problem?
Haakstad, L. A. H., Jakobsen, C., Solberg, R. B., Sundgot‐Borgen, J., & Gjestvang, C. (2020) · Psychology of sport and exercise · doi:10.1016/j.psychsport.2020.101880 · Cited by 9
Effect of Burnout and Organizational Commitment on the Turnover Intention of Clinical Laboratory Employees in Florida
Hilton, T. L. (2015) · ScholarWorks (Walden University) · Cited by 9
Unveiling candidate genes for metabolic resistance to malathion in Aedes albopictus through RNA sequencing-based transcriptome profiling
Huang, X., Kaufman, P. E., Athrey, G., Fredregill, C., & Slotman, M. A. (2024) · PLoS neglected tropical diseases · doi:10.1371/journal.pntd.0012243 · Cited by 8
Intravenous drug administration with escape games: A mixed methods study
Köse, A., & Çoban, G. İ. (2024) · Nurse Education in Practice · doi:10.1016/j.nepr.2024.104228 · Cited by 8
Mental wellbeing effects of disclosing life events on social media
Saha, K., Yoo, D. W., Swain, V. D., & Choudhury, M. D. (2025) · Scientific Reports · doi:10.1038/s41598-025-07295-w · Cited by 11
Social Provisions and Young Women’s Health-Related Physical Activity
Ulvick, J. D., & Spink, K. S. (2015) · Women & Health · doi:10.1080/03630242.2015.1061093 · Cited by 8
Analyzing diabetic foot ulcer through Amit Jain’s classification: A descriptive study
Jain, A. K. C., Apoorva, H. C., Kumar, H., Kumar, K., & Rajagopalan, S. (2018) · International Journal of Surgery Science · doi:10.33545/surgery.2018.v2.i4a.43 · Cited by 8
Effects of standing and walking on plantar pressure distribution in recreational runners before and after long-distance running
Zhang, X., Wang, W., Chen, G., Ji, A., & Song, Y. (2021) · Journal of Biomechanics · doi:10.1016/j.jbiomech.2021.110779 · Cited by 8
Factors associated with routine vaccination card retention among children aged 0–59 months in Yaounde-Cameroon: A cross-sectional survey
Yakum, M. N., Funwie, A. D., Ajong, A. B., Tsafack, M., Ze, L. E. E., Ekukole, E. S. R., & Shah, Z. (2022) · PLoS ONE · doi:10.1371/journal.pone.0273515 · Cited by 8
Reduction in avoidance mediates effects of brief behavioral therapy for pediatric anxiety and depression
Baca, S. A., Goger, P., Glaser, D. N., Rozenman, M. S., González, A., Dickerson, J. F., Lynch, F. L., Porta, G., Brent, D. A., & Weersing, V. R. (2023) · Behaviour Research and Therapy · doi:10.1016/j.brat.2023.104290 · Cited by 8
Mindfulness intervention effect on endometriosis-related pain dimensions and its mediator role on stress and vitality: a path analysis approach
Moreira, M. D. F., Gamboa, O. L., & Oliveira, M. A. P. (2023) · Archives of Women s Mental Health · doi:10.1007/s00737-023-01381-6 · Cited by 12
Effect of prepared herbal mouthwash in maintaining the oral health of school children: A single-blind randomised control trial
Fahim, M. F. M., & Zarnigar, P. (2023) · EXPLORE · doi:10.1016/j.explore.2023.12.003 · Cited by 8
Understanding the process of statistical methods for effective data analysis
Omair, A. A. (2014) · Journal of Health Specialties · doi:10.4103/1658-600x.137882 · Cited by 8
Motor Control and Ergonomic Intervention Home-Based Program: A Pilot Trial Performed in the Framework of the Motor Control Home Ergonomics Elderlies' Prevention of Falls (McHeELP) Project
Stasi, S., Τσεκούρα, Μ., Gliatis, J., & Sakellari, V. (2021) · Cureus · doi:10.7759/cureus.14336 · Cited by 8
Complex effects of whole body cryostimulation on hematological markers in patients with obesity
Wyrostek, J., Piotrowska, A., Czerwińska‐Ledwig, O., Zuziak, R., Szyguła, Z., Cisoń, T., Żychowska, M., & Pilch, W. (2021) · PLoS ONE · doi:10.1371/journal.pone.0249812 · Cited by 8
Retinal Microvascular Vessel Density Differences between Adult Athletes and Nonathletes
Uğurlu, A., & İçel, E. (2021) · Optometry and Vision Science · doi:10.1097/opx.0000000000001733 · Cited by 8
Survival Analyses: A Statistical Review for Surgeons
Rebernick, R. J., Bell, H. N., & Wakeam, E. (2022) · Seminars in Thoracic and Cardiovascular Surgery · doi:10.1053/j.semtcvs.2022.01.001 · Cited by 8
The Effects of Zinc and Selenium Supplementation on Body Composition and Thyroid Function in Individuals with Overweight or Obesity: A Systematic Review
Zavros, A., Giannaki, C. D., Aphamis, G., Ρούπα, Ζ., & Andreou, E. P. (2022) · Journal of Dietary Supplements · doi:10.1080/19390211.2022.2072044 · Cited by 12
Health-Promoting Benefits of Exercise Awareness and Exercise Behavior in Older Adults: An Exercise Program Intervention
Huang, W.-Y., & Wu, C.-E. R. (2024) · SAGE Open · doi:10.1177/21582440241263638 · Cited by 11
Sleep clinical record: what differences in school and preschool children?
Villa, M. P., Shafiek, H., Evangelisti, M., Rabasco, J., Cecili, M., Montesano, M., & Barreto, M. (2016) · ERJ Open Research · doi:10.1183/23120541.00049-2015 · Cited by 8
ESTIMATION OF THE CRANIAL CAPACITY IN DRY HUMAN SKULL BONES
Sangeetha, K., & Sathya Murthy, B. (2018) · International Journal of Anatomy and Research · doi:10.16965/ijar.2018.145 · Cited by 8
An avatar‐based education application to improve patients’ knowledge of and response to heart attack symptoms: A pragmatic randomized controlled trial protocol
Tongpeth, J., Du, H., & Clark, R. A. (2018) · Journal of Advanced Nursing · doi:10.1111/jan.13767 · Cited by 8
Overall and Anterior Tooth Size Ratios in a Group of Emiratis
Mohammad, M. G., Naser-ud-Din, S., Khamis, A. H., & Athanasiou, A. E. (2018) · The Open Dentistry Journal · doi:10.2174/1745017901814010655 · Cited by 8
Self-care Behavior and Self-care Agency in Lowering Salt Consumption in Hypertensive Older Patients Based on Orem's Self-Care Theory
Hosseinzadeh, M., Mahdavi, N., Valizadeh, S., Fooladi, M. M., Rahmani, F., Ghanouni, F., & Aghajari, P. (2019) · Asian Journal of Social Health and Behavior · doi:10.4103/shb.shb_7_19 · Cited by 8
Are fitness club members likely to meet the current physical activity recommendations?
Gjestvang, C., Stensrud, T., Hansen, B. H., Kolle, E., & Haakstad, L. A. H. (2019) · Translational Sports Medicine · doi:10.1002/tsm2.120 · Cited by 8
Workplace Ostracism and Counterproductive Work Behaviors among Nurses
Ebrahim, S. A. M., & Eldeep, N. M. (2020) · Egyptian Journal of Health Care · doi:10.21608/ejhc.2020.166531 · Cited by 8
Estimating pedestrian walking speed at street crossings using the YOLOv4 and deep SORT algorithms: Proof of principle
Ghomashchi, H., Paterson, J., Novak, A. C., & Dutta, T. (2024) · Applied Ergonomics · doi:10.1016/j.apergo.2024.104292 · Cited by 9
Placebo Effect of Caffeine on Physiological Parameters and Physical Performance
Ortiz-Sánchez, D., Bravo‐Sànchez, A., Ramírez-delaCruz, M., Abián, P., & Abián‐Vicén, J. (2024) · Nutrients · doi:10.3390/nu16101405 · Cited by 11
Development and validation of spatial disorientation scenarios using virtual reality and motion simulator
Kim, S., Kang, Y., & Lazaro, M. J. (2025) · Applied Ergonomics · doi:10.1016/j.apergo.2024.104457 · Cited by 7
On the effect of flexible adjustment of the p value significance threshold on the reproducibility of randomized clinical trials
Habibzadeh, F. (2025) · PLoS ONE · doi:10.1371/journal.pone.0325920 · Cited by 7
The effect of physical activity on life satisfaction among sports science students: a moderated mediation model of resilience and mindfulness
Seçer, E., Kaçay, Z., Yıldız, N. O., Talaghir, L.-G., Cosoreanu, D. M., & Benţea, C. C. (2025) · Frontiers in Psychology · doi:10.3389/fpsyg.2025.1682469 · Cited by 11
Effects of Eccentric Single-Leg Decline Squat Training Performed With Different Execution Times on Maximal Strength and Muscle Contraction Properties of the Knee Extensor Muscles
Abián‐Vicén, J., Martínez, F. H., Jiménez, F., & Abián, P. (2021) · The Journal of Strength and Conditioning Research · doi:10.1519/jsc.0000000000004063 · Cited by 7
Prognosis of oral epithelial dysplasia in individuals with and without oral lichen planus
Pimolbutr, K., Lim, W. T., Leeson, R., Hopper, C., Kalavrezos, N., Liew, C., Schilling, C., Sinha, D., Jay, A., Agrawal, R., et al. (2023) · Oral Diseases · doi:10.1111/odi.14503 · Cited by 7
Reducing plastic waste in the workplace: a program evaluation
Mathew, A., Isbanner, S., & Rundle-Thiele, S. R. (2024) · Journal of Social Marketing · doi:10.1108/jsocm-05-2023-0115 · Cited by 8
Caries experience and its relationship with oral health related quality of life among orphanage children in Bengaluru City: A cross-sectional study
Pratap, R., Puranik, M. P., & Uma, S. (2016) · Journal of Indian Association of Public Health Dentistry · doi:10.4103/2319-5932.195834 · Cited by 7
Incidence of Active Tuberculosis and Cohort Retention Among Adolescents in Western Kenya
Nduba, V., Hoog, A. H. V., Mitchell, E. M. H., Borgdorff, M. W., & Laserson, K. F. (2017) · The Pediatric Infectious Disease Journal · doi:10.1097/inf.0000000000001685 · Cited by 7
Mindfulness, Self-Compassion, and Athletic Performance in Student-Athletes
Tıngaz, E. O., & Çakmak, S. (2021) · Journal of Rational-Emotive & Cognitive-Behavior Therapy · doi:10.1007/s10942-021-00434-y · Cited by 7
Impact of Educational Nursing Intervention on Compression Therapy Adherence and Recurrence of Venous Leg Ulcers: A Quasi-Experimental Study
Behairy, A. S., & Masry, S. E. (2021) · Ocular Oncology and Pathology · doi:10.1159/000521054 · Cited by 7
Efficacy of Jawarish Shahi a herbal formulation in irritable bowel syndrome: An open-labeled single-arm clinical trial
Moazzam, S. W., Mobeen, A., & Siddiqui, M. A. (2022) · Journal of Traditional and Complementary Medicine · doi:10.1016/j.jtcme.2022.04.004 · Cited by 7
The effects of psychosocial and economic factors on the quality of life of patients with end-stage renal disease and their caregivers in Klang Valley, Malaysia: protocol for a mixed-methods study
Ibrahim, N., Chu, S. Y., Siau, C. S., Amit, N., İsmail, R., & Gafor, A. H. A. (2022) · BMJ Open · doi:10.1136/bmjopen-2021-059305 · Cited by 7
MODELLING THE COMMUNITY ADAPTIVE BEHAVIOUR TOWARDS AIR POLLUTION: A CONFIRMATORY FACTOR ANALYSIS WITH PLS-SEM
Sahrir, S., Ponrahono, Z., & Sharaai, A. H. (2022) · PLANNING MALAYSIA · doi:10.21837/pm.v20i22.1139 · Cited by 7
Outcomes from integrating anti-cervical cancer teachings into the curriculum of high schools in a South-Eastern Nigerian State
Ifediora, C., Veerman, L. J., Azuike, E. C., Ekwochi, U., & Obiozor, W. E. (2022) · BMC Public Health · doi:10.1186/s12889-022-14231-4 · Cited by 7
Does length of common limb influence remission of diabetes? Short-term results
Gupta, R. N., Chamany, T., & Makam, R. (2015) · Journal of Minimal Access Surgery · doi:10.4103/0972-9941.152104 · Cited by 8
Left Ventricular Diastolic Dysfunction (LVDD) & Cardiovascular Autonomic Neuropathy (CAN) in Type 2 Diabetes Mellitus (DM): A Cross-Sectional Clinical Study
Mythri, S. (2015) · JOURNAL OF CLINICAL AND DIAGNOSTIC RESEARCH · doi:10.7860/jcdr/2015/10509.5497 · Cited by 7
Predicting EEG Sample Size Required for Classification Calibration
Mao, Z., Jung, T., Lin, C., & Huang, Y. (2016) · Lecture notes in computer science · doi:10.1007/978-3-319-39955-3_6 · Cited by 7
Automation of CT-based haemorrhagic stroke assessment for improved clinical outcomes: study protocol and design
Chinda, B., Medvedev, G., Siu, W. W. Y., Ester, M., Arab, A., Gu, T., Moreno, S., D’Arcy, R. C. N., & Song, X. (2018) · BMJ Open · doi:10.1136/bmjopen-2017-020260 · Cited by 7
Twin pregnancy, the study of maternal and perinatal outcome: what being a twin is like?
Smitha, K., & Jasiya Afreen, M. H. (2019) · International Journal of Reproduction Contraception Obstetrics and Gynecology · doi:10.18203/2320-1770.ijrcog20194875 · Cited by 7
Healthcare professionals’ knowledge and practice of and attitudes towards pharmacovigilance in Alexandria, Egypt: a cross-sectional survey
Elkhwsky, F., Sayed, I. E., Yassine, O. G., Abdelmonem, S., & Salama, M. M. (2021) · Drugs & Therapy Perspectives · doi:10.1007/s40267-020-00798-8 · Cited by 7
A Systematic Review on the Effect of Saffron Extract on Lipid Profile in Hyperlipidaemic Experimental Animal Models
Rahim, I. N. A., Kasim, N. A. M., Isa, M. R., & Nawawi, H. M. (2022) · Malaysian Journal of Medical Sciences · doi:10.21315/mjms2022.29.4.3 · Cited by 7
Tekanan untuk makan dengan kejadian picky eater pada anak usia 2-3 tahun
Cerdasari, C., Helmyati, S., & Julia, M. (2017) · Jurnal Gizi Klinik Indonesia · doi:10.22146/ijcn.24169 · Cited by 7

Authors: Suresh, K., & Chandrashekara, S.
Affiliations: National Institute of Animal Nutrition and Physiology (IN)
Department of Immunology and Reumatology, ChanRe Rheumatology and Immunology Center and Research, Bangalore, India
ORCID: Suresh, KP
Chandrashekara, S
Venue: Journal of Human Reproductive Sciences
Publisher: Ovid Technologies (Wolters Kluwer Health)
Published: 2012-01
Volume: 5
Issue: 1
Pages: 7-13
ISSN: 0974-1208 (ISSN-L)
1998-4766
DOI: 10.4103/0974-1208.97779
PMC: PMC3409926
OpenAlex: W2038287973
Cited by: 1,024
References: 20
Citations by year: 2026: 47 · 2025: 94 · 2024: 115 · 2023: 98 · 2022: 127 · 2021: 118 · 2020: 85 · 2019: 65 · 2018: 62 · 2017: 56 · 2016: 52 · 2015: 67 · 2014: 31 · 2013: 6
FWCI: 31.52
Type: journal article
Language: en
Status: Retracted
Update notices: retraction (2015-07-01)
Open access: diamond
doi.org
Licence: cc-by-nc-sa
Locations: Journal of Human Reproductive Sciences (publishedVersion, cc-by-nc-sa)
Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-sa)
PubMed Central (publishedVersion, cc-by-nc-sa)
PubMed (publishedVersion)
DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics: Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Epidemiology
Physical Sciences › Mathematics › Statistics and Probability › Statistical Methods in Clinical Trials
Physical Sciences › Mathematics › Statistics and Probability › Probability and Statistical Research
Keywords: sample size determination, statistical power, clinical research design, two-group comparison, proportion, rates, correlation, case-control study, categorical outcomes, survey studies

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review

Sample size estimation and power analysis for clinical research studies

Abstract

Overview

Integrity signals

Verification

Claims the paper makes

Claims other papers make about this one

Self-check

Citations

Cites

Cited by

Related

Metadata

Record

About these checks