Dr. Adriana Perez |
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University of Louisville School of Public Health & Information Sciences Bioinformatics & Biostatistics Biostatistics Associate ProfessorAppointed: 2007 |  |
Mailing Address555 S Floyd Street Suite 4013A Louisville, Kentucky 40292United States | Contact Information |
Qualifications
Ph.D., Tulane University, Biostatistics, 1995.
M.Sc., Tulane University, Biostatistics, 1994.
B.Sc., National University of Colombia, Statistics, 1991.
Expertise and Research Interests
Dr. Pérez has relevant skills in the areas of management of large data sets, study design, data analysis plan, statistical methods and statistical analysis. Also, she has taught medical and statistician students, as well as graduate and undergraduate students in various subject areas. She has experience in the development, assessment, and application of specific organizational and educational interventions used for collaborative clinical trials.
Dr. Pérez has conducted research using multiple imputation techniques and research estimating of the required sample size in clinical research. Dr Pérez is the principal author of a software which allow researches to calculate the require sample size in their clinical protocols. This software is called 'Tamaño de la Muestra' and is available in Spanish only.
Currently, Dr. Pérez is the Principal investigator of the Statsitical and Economic Analysis Core of the EXPORT grant funded by NIH as well as for the project "Missing Data Imputation at the Survey of Industrial Research and Development" funded by ASA/NSF.
Dr. Pérez has been the principal investigator in several past projects as 'Comparison of several imputation techniques to quantify the severity of disease in admitted patients to intensive care units in Colombia', 'Modeling and simulation of sample size in some health research designs', 'Tamaño de la muestra: a computer program to estimate the required sample size and power in clinical research', 'Longitudinal effects on estimates after imputation at the survey of graduate students and postdoctorates in science and engineering','On the pursuit of Biostatistics Professionals', 'Missing data analysis on the science resource statistics surveys', and 'Diabetes and tuberculosis: the strength of their association and the economic impact in the Lower Rio Grande Valley'.
Dr. Perez has been also a co-investigator in several projects as: 'Assessment of intensive care in Colombia: Health Service, Technology and Quality Evaluation', 'Improvement of parental antibiotic use in a university hospital in Colombia', 'Latin american migraine study (LAMS): a Cross sectional survey of migraine with and without aura, as well as tension type headache in men and women over 15 years of age who lived in the major areas of the participating Latin American countries', the 'WPA/INCLEN International collaborative project on depression in primary care. Development, assessment and application of clinic specific organizational and education interventions for improving the recognition and management of depression in primary care settings in developing countries', 'Emerging MDR Tuberculosis Across the US/Mexico border' and 'Interrelationships of Hormones, Diet, Body Size and Breast Cancer among Hispanic Women' .
Dr. Perez acted as the project manager for a large clinical trial on stomach cancer in Colombia titled 'A chemoprevention trial among persons at high risk of stomach cancer in the Andes Mountains of Colombia'. She coordinated with field team to assure protocol procedures followed and with New Orleans team to design and implement statistical analyses. She advised on and designed statistical procedures for New Orleans team's research on stomach cancer and lifestyle/genetic factors. She has acted as a consultant with other Louisiana State University Medical Center faculty members regarding experimental design and statistical analyses. Also she has acted as a consultant with 'Air pollution and acute respiratory illness in Bogotá'.
Research interests: statistical methods suited to epidemiological research; imputation techniques; design, conduct and analysis of multicenter clinical trials; logistic regression analysis; sample size estimation and modeling strategies.
Dr. Pérez has conducted research using multiple imputation techniques and research estimating of the required sample size in clinical research. Dr Pérez is the principal author of a software which allow researches to calculate the require sample size in their clinical protocols. This software is called 'Tamaño de la Muestra' and is available in Spanish only.
Currently, Dr. Pérez is the Principal investigator of the Statsitical and Economic Analysis Core of the EXPORT grant funded by NIH as well as for the project "Missing Data Imputation at the Survey of Industrial Research and Development" funded by ASA/NSF.
Dr. Pérez has been the principal investigator in several past projects as 'Comparison of several imputation techniques to quantify the severity of disease in admitted patients to intensive care units in Colombia', 'Modeling and simulation of sample size in some health research designs', 'Tamaño de la muestra: a computer program to estimate the required sample size and power in clinical research', 'Longitudinal effects on estimates after imputation at the survey of graduate students and postdoctorates in science and engineering','On the pursuit of Biostatistics Professionals', 'Missing data analysis on the science resource statistics surveys', and 'Diabetes and tuberculosis: the strength of their association and the economic impact in the Lower Rio Grande Valley'.
Dr. Perez has been also a co-investigator in several projects as: 'Assessment of intensive care in Colombia: Health Service, Technology and Quality Evaluation', 'Improvement of parental antibiotic use in a university hospital in Colombia', 'Latin american migraine study (LAMS): a Cross sectional survey of migraine with and without aura, as well as tension type headache in men and women over 15 years of age who lived in the major areas of the participating Latin American countries', the 'WPA/INCLEN International collaborative project on depression in primary care. Development, assessment and application of clinic specific organizational and education interventions for improving the recognition and management of depression in primary care settings in developing countries', 'Emerging MDR Tuberculosis Across the US/Mexico border' and 'Interrelationships of Hormones, Diet, Body Size and Breast Cancer among Hispanic Women' .
Dr. Perez acted as the project manager for a large clinical trial on stomach cancer in Colombia titled 'A chemoprevention trial among persons at high risk of stomach cancer in the Andes Mountains of Colombia'. She coordinated with field team to assure protocol procedures followed and with New Orleans team to design and implement statistical analyses. She advised on and designed statistical procedures for New Orleans team's research on stomach cancer and lifestyle/genetic factors. She has acted as a consultant with other Louisiana State University Medical Center faculty members regarding experimental design and statistical analyses. Also she has acted as a consultant with 'Air pollution and acute respiratory illness in Bogotá'.
Research interests: statistical methods suited to epidemiological research; imputation techniques; design, conduct and analysis of multicenter clinical trials; logistic regression analysis; sample size estimation and modeling strategies.
Other Expertise
Journal Reviewer:
- Biometrical Journal
- Revista Colombiana de Estadística
- Acta Medica Colombiana
- Medicas UIS
- American Journal of Public Health
- Quality of Life Research
- Journal of Gastroenterology and Hepatology
- Computational statistics and data analysis
- Journal of Statistical Computation and Simulation
- HIV Clinical Trials
- British Medical Journal
- Biomedical Central Series
- Current Index of Statistics (Editorial Assistant)
Consultancy:
- Statistical Consultant: Grant: S.A.L.U.D. Health Literacy Project. Brownsville Community Health Center. 2002
- Statistical Consultant: Air pollution and acute respiratory illness in Bogotá. 1999-2001
- Statistical Consultant: Evaluation of the Changing Process of Public Hospitals in Health Government Programs in Bogotá. 1997-1999
- Biometrical Journal
- Revista Colombiana de Estadística
- Acta Medica Colombiana
- Medicas UIS
- American Journal of Public Health
- Quality of Life Research
- Journal of Gastroenterology and Hepatology
- Computational statistics and data analysis
- Journal of Statistical Computation and Simulation
- HIV Clinical Trials
- British Medical Journal
- Biomedical Central Series
- Current Index of Statistics (Editorial Assistant)
Consultancy:
- Statistical Consultant: Grant: S.A.L.U.D. Health Literacy Project. Brownsville Community Health Center. 2002
- Statistical Consultant: Air pollution and acute respiratory illness in Bogotá. 1999-2001
- Statistical Consultant: Evaluation of the Changing Process of Public Hospitals in Health Government Programs in Bogotá. 1997-1999
Keywords
COS Keywords:
Applied Statistics, Biometry, Biostatistics, Data Management or Analysis (Medical), Epidemiology, Health Care, Mathematical Modeling, Mathematical Modeling (Medical), Statistics, Vital Statistics.Additional Terms:
Biostatistician, Biostatistics, Data Analysis, Health Care, Mathematical Modeling, Statistical Methods Missing Data.Languages
(Reading, Writing, Speaking)
English: (Fluent, Fluent, Fluent)
Spanish: (Fluent, Fluent, Fluent)
French: (Functional, Basic, Basic)
Memberships
American Statistical Association
Asociacion Colombiana de Biometria
Asociacion Colombiana de Epidemiologia
International Biometric Society
International Clinical Epidemiology Network
International Society of Clinical Biostatistics
Honors and Awards
2002-2005,
Council Member,
International Biometric Society,
Biometry
2002, Travel Award
International Clinical Epidemiogy Network
2000-2001,
President,
Colombian Group,
International Biometric Society
2000, Conference Award Scientist,
International Society for Clinical Biostatistics
2000, Travel Award
International Biometric Society
1999, Travel Award
International Clinical Epidemiology Network
1999, Medicine National Academic Award
Colombian National Academy of Medicine,
Clinical Area
1999, Travel Award,
INCLEN,
University of North Carolina at Chapel Hill,
Workshop on Multicenter Studies
1997-1998,
President,
Colombian Group,
International Biometric Society
1997, Travel Award
International Biometric Society
1996-1997,
Young Researcher,
Colciencias
1996, Travel Award
International Clinical Epidemiology Network
1993-1994,
Scholarship
Tulane University,
Ph.D. in Biostatistics
1992-1993,
Best Statistician Student,
Department of Mathematics and Statistics,
National University of Colombia,
Statistics
Previous Positions
2001-2007, Assistant Professor,
University of Texas Health Science Center at Houston,
School of Public Health,
Biostatistics
1996-2001, Assistant Professor,
National University of Colombia,
Sciences,
Mathematics and Statistics
1993-1994, Instructor,
Louisiana State University,
Medicine,
Pathology
1992-1993, Teaching Assistant,
Tulane University,
Graduate School,
Biostatistics
1992-2003, Associate Professor,
Pontificia Universidad Javeriana - Bogotá,
Medicine,
Clinical Epidemiology and Biostatistics
1991-1992, Statistician,
Colombian National Bureau of Statistics (DANE)
Patents
Tamaño de la Muestra. V 1.1,
Patent Number: Libro 13 Tomo 7 Partida 063,
2001,
PUJ,
Colombia.
Funding Received
- Colciencias: Modeling and simulation of sample size in some health research designs. Grant #124-2000, $7,100, Oct 1, 2000 to Oct 1, 2001.
- Fundación para la Promoción de la Investigación y la Tecnología: Modeling and simulation of sample size in some health research designs. Grant #986, $6,800, Nov 1, 1999 to Feb 1, 1999.
- American Statistical Association/National Science Foundation: Missing data analysis on the science resource statistics surveys, $39,457, May 5, 2003 to May 4, 2004.
- International Clinical Epidemiology Network: Tamaño de la muestra: A computer program to estimate the required sample size and power in clinical research, $5,700, Jan 1, 1997 to Dec 31, 1999.
- National Institutes of Health (NIH). National Center on Minority Health and Health Disparities (NCMHD): Creation of an Hispanic Health Research Center in the Lower Rio Grande Valley. Statistical and Economic Analysis Core, $109,695, Feb 1, 2003 to Jan 31, 2008.
- Colciencias: Comparison of several imputation techniques to quantify the severity of disease in admitted patients to intensive care units in Colombia. Grant #080-99, $5,000, Apr 1, 1999 to Apr 1, 2000.
- American Statistical Association/National Science Fundation: Missing Data Imputation at the Survey of Industrial Research and Development., $67,560, 2006 to 2007.
- American Statistical Association/National Science Foundation: Longitudinal effects on estimates after imputation at the survey of graduate students and postdoctorates in science and engineering, $39,089, 2005 to 2006.
- National Institutes of Health (NIH): Diabetes and tuberculosis: the strength of their association and the economic impact in the Lower Rio Grande Valley (LRGV), $51,080, 2003 to 2004.
Publications
- Perez, A (2007) Using the fractional imputation methodology to evaluate variance due to hot deck imputation in survey data, Journal of Modern Applied Statistical Methods, In Press
- Perez, A, Hoelscher, D.M. (2007) Differences in Food Consumption and Meal Patterns in Texas School Children by Grade, Preventing Chronic Disease, In Press
- Vela-Acosta, M.S.,, Sanderson, M. (2007) Health Risk Behaviors and Work Injury among Hispanic Adolescents, Journal of Agricultural Safety and Health, In Press
- Perez, A. (2006) Physical Activity and Overweight Among Adolescents on the Texas-Mexico Border, Pan American Journal of Public Health, 19 (4), 244-252
- Perez, A (2006) Association between tuberculosis and diabetes in the Mexican border and non-border regions of Texas, American Journal of Tropical Medicine and Hygiene, 74 (4), 606-611
- Perez, A (2006) Predicting the Length of Stay of Patients Admitted for Intensive Care Using a First Step Analysis., Health Services and Outcomes Research Methodology, In Press
- Sanderson, M (2006) A Multilevel Analysis of Socioeconomic Status and Prostate Cancer Risk., Annals of Epidemiology, In Press
- Restrepo, B.I (2006) Type 2 diabetes and tuberculosis in a dynamic binational border population, Epidemiology and Infection, In Press
- * Pérez, A. (2006) Journal of Clinical Epidemiology, A Colombian survey found intensive care mortality ratios were better in private vs. public hospitals, 59 (1), 94-101
- Perez A, Anzaldua M, McCormick J, Fisher-Hoch S, High frequency of chronic end-stage liver disease and hepatocellular
carcinoma in a Hispanic population, Journal of Gastroenterology and Hepatology, 19(3), 289-95, March 2004
- Perez A, Dennis RJ, Rodriguez B, Castro AY, Delgado V, Lozano JM, Castro MC, An interrupted time series analysis of parenteral antibiotic use in
Colombia, Journal of Clinical Epidemiology, 56(10), 1013-20, October 2003
- Cadena J, Vinaccia S, Perez A, Rico MI, Hinojosa R, Anaya JM, The Impact of Disease Activity onthe Quality of Life, Mental Health Status and Family Dysfunction in Colombian Patients with Rheumatoid Arthritis, Journal of Clinical Rheumatology, 9(3), 142-150, 2003
- Perez A, Dennis RJ, Gil JF, Rondon MA, Lopez A, Use of the mean, hot deck and multiple imputation techniques to predict
outcome in intensive care unit patients in Colombia, Statistics in Medicine, 21(24), 3885-96, December 2002
- Dennis RJ, Perez A, Rowan K, Londono D, Metcalfe A, Gomez C, McPherson K, [Factors associated with hospital mortality in patients admitted to the
intensive care unit in Colombia], Archivos De Bronconeumologia, 38(3), 117-22, March 2002
- Castañeda, J.A., Pérez, A., Gil, J.F.A, Sample size required to estimate the arithmetic mean of a lognormal distribution, Revista Colombiana de Estadistica, 25(1), 31-41, 2002
- Rosselli D, Otero A, Heller D, Calderon C, Moreno S, Perez A, [Estimating the supply of medical specialists in Colombia by using the capture-recapture method], 9(6), 393-8, June 2001
- Gil JFA, Perez A, Castañeda JA, Empirical Power from Existing Sample Size Formulae for Logistic Regression, 2001
- Dennis R, Perez A, Rowan K, Londoño D, Metcalfe A, Gómez C, McPherson K, Factores Asociados con Mortalidad Hospitalaria en Pacientes admitidos a Cuidado Intensivo en Colombia (Associated factors to hospital mortality in admitted patients to intensive care units in Colombia, Acta Medica Colombiana, 25(5), 294, 2000
- Dennis RJ, Metcalfe A, Perez A, Londoño D, Gómez C, McPherson K, Rowan K, Cuidado Intensivo en Colombia. Recurso Humano y Tecnológico (Intensive Care in Colombia: Human and technology assessment in a middle-income country), Acta Medica Colombiana, 25(5), 211-217, 2000
- Castañeda, J.A., Perez, A., Gil, J.F.A, Sample size required for survival analysis, Revista Colombiana de Estadistica, 23(2), 46-64, 2000
- Perez A, Rodríguez N, Gil JFA, Ramírez GA, Tamaño de la Muestra. A computer program to estimate the required sample size and power in clinical research, Journal of Clinical Epidemiology, 52(Supplement 1), 38S, 1999
- Perez A, Caceres CA, El sistema de manejo de datos en los estudios de investigación: métodos y guías. (Data management system in research: Methods and Guidelines), Revista Colombiana de Neumologia, 11, 126-133, 1999
- Perez A, Lefante JJ, Sample Size Determination and the Effect of Censoring When Estimating the Arithmetic Mean of a Lognormal Distribution, Communications in Statistics: Theory and Methods, 26(11), 2779-2801, 1997
- Perez A, Lefante JJ, How Much Sample Size is Required to Estimate the True Arithmetic Mean of a Lognormal Distribution?, 1996 Proceedings of the Section on Statistics and the Environment, 111-115, 1997
- Fontham ET, Ruiz B, Perez A, Hunter F, Correa P, Determinants of Helicobacter pylori infection and chronic gastritis, American Journal of Gastroenterology, 90(7), 1094-101, July 1995
- Ruiz B, Correa P, Fontham ET, Rood JC, Malcom GT, Torrado J, Perez A, Ramakrishnan T, Hunter FM, Ascorbic acid, Helicobacter pylori and Lewis phenotype among blacks and whites in New Orleans, Cancer Letters, 83(1-2), 323-9, 1994
Profile Details
Last Updated: 5/1/2008
COS Expertise ID #1001753
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