• 2016 – Doctorate in Health Sciences, INSP.
  • 2010 – Master of Health Sciences in Epidemiology, INSP.
  • 2008 – Surgeon, UNAM.

Academic appointments:

  • Researcher in Medical Sciences, National Institute of Public Health.
  • SNI I.
  • Researcher affiliated with CISIDAT.

Research interests:

  • Sexual and Reproductive Health.
  • Gynecology and Obstetrics.


  • Fritz J, Lopez-Ridaura R, Choudhry S, Razo C, Lamadrid-Figueroa H. The association of Native American genetic ancestry and high-density lipoprotein cholesterol: A representative study of a highly admixed population [published online ahead of print, 2020 Apr 24]. Am J Hum Biol. 2020;e23426.
  • Fritz J., Montoya A., Lamadrid-Figueroa H. et al. Training in obstetric and neonatal emergencies in Mexico: effect on knowledge and self-efficacy by gender, age, shift, and profession. BMC Med Educ 20, 97 (2020).
  • Montoya A., Fritz J., Labora A., et al. Respectful and evidence-based birth care in Mexico (or lack thereof): An observational study. Women and Birth. 2020, 1086.
  • Treviño-Siller S, González-Hernández D, Fritz J, et al. Is it possible to incorporate evidence-based professional midwifery practices into public health services in Mexico? Women and Birth. 2019, 977: 1-11
  • Fritz J, Lamadrid-Figueroa H, Angeles G, Montoya A, Walker D. Health providers pass knowledge and abilities acquired by training in obstetric emergencies to their peers: the average treatment on the treated effect of PRONTO on delivery attendance in Mexico. BMC Pregnancy and Childbirth (2018) 18:232
  • Lamadrid-Figueroa H, Montoya A, Fritz J, Ortiz-Panozo E, González-Hernández D, Suárez-López L, et al. (2018) Hospitals by day, dispensaries by night: Hourly fluctuations of Maternal Mortality within Mexican health institutions, 2010-2014. PLoS ONE 13(5): e0198275.
  • Fritz J, Walker DM, Cohen S, Angeles G, Lamadrid-Figueroa H (2017) Can a simulation-based training program impact the use of evidence based routine practices at birth? Results of a hospital-based cluster randomized trial in Mexico. PLoS ONE 12(3): e0172623.
  • Lamadrid-Figueroa H, Montoya A, Fritz J, Olvera M, Torres LM, Lozano R (2016). Towards an Inclusive and Evidence-Based Definition of the Maternal Mortality Ratio: An Analysis of the Distribution of Time after Delivery of Maternal Deaths in Mexico, 2010-2013. PLOS ONE 11: 6. 1-11.
  • Walker DM, Cohen SR, Fritz J, Olvera M, Zelek S, Fahey J, Romero-Martínez M, Montoya-Rodríguez A, Lamadrid-Figueroa H. Impact Evaluation of PRONTO Mexico: A Simulation-Based Program in Obstetric and Neonatal Emergencies and Team Training. Simulation in Healthcare. 2016, 10:4.
  • Walker DM, Cohen SR, Estrada F, Monterroso ME, Jenny A, Fritz J, Fahey J. PRONTO training for obstetric and neonatal emergencies in Mexico. International Journal of Gynecology and Obstetrics. 2012; 116: 128–133.