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Faculty Directory

Joanne Katz, ScD

Associate Chair, Director of Academic Programs


Departmental Affiliation(s):

International Health
Division: Global Disease Epidemiology and Control
Biostatistics (Joint)
Epidemiology (Joint)

Center & Institute Affiliation(s):

Contact Information

615 N. Wolfe Street
Room W5009
Baltimore , Maryland   21205


SciVal Experts Research Profile


ScD , Johns Hopkins University , 1993
MS , Princeton University , 1982
BSc , University of Cape Town , 1978



BSc, Statistics and Economics, University of Cape Town, 1978

MS, Mathematical Statistics, Princeton University, 1982

ScD, International Health, Johns Hopkins University, 1992

My research aims to reduce mortality and morbidity in under-served populations in the United States and abroad. The underlying discipline bases for this research are epidemiology, community randomized trials and biostatistics. Areas of focus include (1) macro and micronutrient deficiencies, (2) neonatal and maternal health, (3) interaction between nutrition and infection, (4) ophthalmic epidemiology and blindness prevention.

Current projects include

1. A randomized trial to assess the impact of newborn massage with mustard seed versus sunflower seed oil on neonatal morbidity and mortality in rural Nepal.

2. A randomized trial to assess the impact of maternal influenza vaccination on respiratory infections in mothers and infants in Sarlahi, Nepal.

3. Pertussis incidence, risk factors and maternal antibody transfer among young infants in rural Nepal.

4. Step wedge trial to assess the impact of improving cook stoves to reduce indoor air pollution and respiratory infections in young children in rural Nepal.

5. Global and regional estimation of the neonatal and infant mortality burden of being born preterm and/or small for gestational age, and maternal risk factors for preterm and/or small for gestational age outcomes through the Child Health Epidemiology Research Group (CHERG).

6. A study to examine whether iron and/or zinc supplementation in utero and/or in early childhood (prior to age 3) has an impact on cognition at age 7-9 years in rural Nepal.



Honors and Awards

2011  Johns Hopkins Alumni Knowledge for the World Award

2011  Global Health Excellence in Advising Award, Johns Hopkins University

2011  Golden Apple teaching Award, Johns Hopkins Bloomberg School of Public Health

Advising, Mentoring and Teaching Recognition Award, Johns Hopkins Bloomberg School of Public Health, 2002, 2005, 2011

2009 Association for Research in Vision and Ophthalmology Fellow

2009 American Academy of Ophthalmology Recognition of Outstanding Service to the Profession of Ophthalmology

Fellow, American College of Epidemiology, 1994

Delta Omega, 1993

epidemiology, biostatistics, community trials, vitamin A, iron, zinc, micronutrients, neonatal and maternal health, adolescent pregnancy, reproductive health, respiratory infections, ophthalmology, blindness and visual impairment, Nepal, Bangladesh.

  • Katz J, Lee ACC, Kozuki N, Lawn JE, Cousens S, Blencowe H, Ezzati M, Bhutta ZA, Marchant T, Willey BA, Adair L, Barros F, Baqui AH, Christian P, Fawzi W, Gonzalez R, Humphrey J, Huybregts L, Kolsteren P, Mongkolchati A, Mullany LC, Ndyomugyenyi R, Nien JK,  Osrin D, Roberfroid D, Sania A, Schmiegelow C, Silveira MF, Tielsch J, Vaidya A, Velaphi SC, Victora CG, Watson-Jones D, Black RE and the CHERG Small-for-Gestational-Age-Preterm Birth Working Group. Mortality risk in preterm and small-for-gestational-age infants in low-income and middle-income countries:  a pooled country analysis.  Lancet 2013;Aug3;382(9890):417-425.  PMID:  23746775

  • Katz J, Wu L, Mullany LC, Lee ACC, Coles C, Kozuki N, Tielsch JM. Prevalence of small-for-gestational-age and its mortality risk varies by choice of birthweight-for-gestation reference population. PloS ONE 2014 March 18; 9(3):e92074.

  • Christian P, Murray-Kolb L, Tielsch JM, Katz J, LeClerq SC, Khatry SK. Associations between preterm birth, small-for-gestational age, and neonatal morbidity and cognitive function among school-age children in Nepal. BMC Pediatr. 2014 Feb 27;14(1):58.  PMID:  24575933

    Black RE, Victora CG, Walker SP,  Bhutta ZA, Christian P, de Onis M,  Ezzati M,  Grantham-McGregor S, Katz J,  Martorell R,  Uauy R  and the Maternal and Child Nutrition Study Group. Maternal and child undernutrition and overweight in low-income and middle-income countries. Lancet 2013;Aug;382(9890):427-451.  PMID: 23746772


  • Lee ACC, Katz J, Blencowe H, Cousens S, Kozuki N, Vogel JP, et al. and the CHERG SGA-Preterm Working Group. Born Too Small:  National and Regional Estimates of Term and Preterm Small-for-Gestational-Age in 138 Low-Middle Income Countries in 2010. Lancet Glob Health 2013; 1: e26–36. PMID:  25103583