Clinical Focus


  • Fellow

Honors & Awards


  • Resident Research Travel (RRT) Program Grant, UCSF (2023)
  • HONORS (Hematology Opportunities for the Next Generation of Research Scientists) Award, American Society of Hematology (2022)
  • Pediatric Oncology Student Training (POST) Grant, Alex's Lemonade Stand Foundation (2017)

Professional Education


  • Pediatrics Residency, UCSF Benioff Children's Hospital Oakland (2023)
  • MD, University of California San Diego School of Medicine (2020)
  • BA, Rice University, Biochemistry and Cell Biology; Psychology (2016)

Graduate and Fellowship Programs


  • Pediatric Hem/Onc (Fellowship Program)

All Publications


  • Social Determinants of Health and Informed Consent Comprehension for Pediatric Cancer Clinical Trials. JAMA network open Aristizabal, P., Nataraj, S., Ma, A. K., Kumar, N. V., Perdomo, B. P., Martinez, M. E., Nodora, J., Liu, L., Lee, E., Thornburg, C. D. 2023; 6 (12): e2346858

    Abstract

    Ensuring valid informed consent (IC) prior to enrollment in clinical trials is a fundamental ethical right.To assess whether social determinants of health (SDOH) and related sociocontextual factors are associated with parental IC comprehension in therapeutic childhood cancer clinical trials.This cross-sectional study prospectively enrolled 223 parents of children with newly diagnosed cancer at Rady Children's Hospital San Diego, a large quaternary academic center in California, from October 1, 2014, to March 31, 2021. Linear mixed effects models were used to assess whether IC comprehension overall and by domain (purpose, procedures, and randomization; risks and benefits; alternatives; and voluntariness) were associated with SDOH and sociocontextual factors. Data were analyzed from January 1, 2022, to July 31, 2023.Informed consent for a therapeutic childhood cancer clinical trial.The primary outcome of interest was IC comprehension and its associations with SDOH (marital status, language, educational attainment, employment, insurance type, socioeconomic status, and health literacy) and sociocontextual factors (ethnicity, satisfaction with informed consent, and cancer type).Of 223 parents, 172 (77.1%) were aged 18 to 44 years, 111 (49.8%) were Hispanic, 152 (68.2%) were women, and 163 (73.1%) were married. In terms of race, 2 (0.9%) were American Indian or Alaska Native, 22 (9.9%) were Asian or Pacific Islander, 8 (3.6%) were Black, 149 (66.8%) were White, and 42 (18.8%) were more than 1 race. In multivariable linear mixed-effects analyses, limited vs adequate health literacy was associated with lower comprehension of informed consent overall (mean [SD], 68.28 [11.81] vs 79.24 [11.77]; β estimate, -9.02 [95% CI, -12.0 to -6.07]; P < .001) and with lower comprehension of the purpose, procedures, and randomization (mean [SD], 65.00 [12.64] vs 76.14 [11.53]; β estimate, -7.87 [95% CI, -10.9 to -4.85]; P < .001); risks and benefits (mean [SD], 62.84 [20.24] vs 73.14 [20.86]; β estimate, -10.1 [95% CI, -15.6 to -4.59]; P < .001); alternatives (mean [SD], 54.27 [43.18] vs 82.98 [34.24]; β estimate, -14.3 [95% CI, -26.1 to -2.62]; P  .02); and voluntariness (mean [SD], 76.52 [24.33] vs 95.39 [13.89]; β estimate, -9.14 [95% CI, -14.9 to -3.44]; P = .002) domains. Use of Spanish vs English language for medical communication was associated with lower comprehension overall (mean [SD], 66.45 [12.32] vs 77.25 [12.18]; β estimate, -5.30 [95% CI, -9.27 to -1.34]; P = .01) and with lower comprehension of the purpose, procedures, and randomization (mean [SD], 63.33 [11.98] vs 74.07 [12.52]; β estimate, -4.33 [95% CI, -8.43 to -0.23]; P = .04) and voluntariness (mean [SD], 70.83 [24.02] vs 92.54 [17.27]; β estimate, -9.69 [95% CI, -16.8 to -2.56]; P = .009) domains.In this cross-sectional study including parents of children with newly diagnosed cancer who provided IC for their child's participation in a therapeutic clinical trial, limited health literacy and use of Spanish language for medical communication were associated with lower comprehension of IC. These findings suggest that, in this setting, parents with limited health literacy or those who use Spanish language for medical communication may not fully comprehend IC and therefore may not make truly informed decisions. These findings support the investigation of interventions, across pediatric disciplines, tailored to the participant's language and health literacy level to improve IC comprehension, particularly in racial and ethnic minority populations.

    View details for DOI 10.1001/jamanetworkopen.2023.46858

    View details for PubMedID 38079173

    View details for PubMedCentralID PMC10714248

  • Prevalence of Adverse Childhood Experiences in a Sample of Children with Sickle Cell Disease American Society of Pediatric Hematology/Oncology Conference Nataraj, S., Vissa, M., Cavazos, J., Ghosh, S., Treadwell, M. 2023

    View details for DOI 10.1002/pbc.30390

  • Parental Informed Consent Comprehension in Childhood Cancer Clinical Trials: Associations with Social Determinants of Health American Society of Clinical Oncology Annual Meeting Aristizabal, P., Nataraj, S., Martinez, M., Nodora, J., Thornburg, C. 2022
  • A Case of Congenital Thrombotic Thrombocytopenic Purpura with Plasma Prophylactic Treatment and COVID-19 Viral Exacerbation Western States Regional Hemophilia Network Conference Nataraj, S., Unpingco, K., Matsunaga, A. 2022
  • Idiopathic Pulmonary Hemosiderosis in Two Young Pre-Menarchal Females with Iron Deficiency Anemia American Society of Pediatric Hematology/Oncology Conference Nataraj, S., Ferrerosa, L., Unpingco, K., Matsunaga, A. 2022
  • A Single Center Retrospective Review of Lemierre Syndrome and Related Anticoagulation Trends American Society of Pediatric Hematology/Oncology Conference El-Haj, N., Nataraj, S., Unpingco, K., Matsunaga, A. 2021
  • Successful Treatment of Pediatric FIRES With Anakinra PEDIATRIC NEUROLOGY Yang, J. H., Nataraj, S., Sattar, S. 2021; 114: 60-61
  • Contextual Factors Contributing to Psychosocial Distress in Caregivers of Children with Newly Diagnosed Cancer American Society of Pediatric Hematology/Oncology Conference Nataraj, S., Perdomo, B., Durali, N., Reineke, A., Zhang, Y., Thornburg, C., Aristizabal, P. 2019