Scott A. Lorch, MD, MSCE

Harriet and Ronald Lassin Endowed Chair in Pediatric Neonatology
Director, Center for Perinatal and Pediatric Health Disparities Research (CPHD)
Director, Neonatal-Perinatal Medicine Fellowship, Division of Neonatology
Deputy Director, Center for Outcomes Research (COR)
The Children's Hospital of Philadelphia
Associate Professor of Pediatrics
Perelman School of Medicine, University of Pennsylvania
Contact Information
The Children's Hospital of Philadelphia
3535 Market Street, Suite 1029
Philadelphia, PA 19104
Phone:  215-590-1714
Fax:  215-590-2378
E-mail:  lorch [at]
Biographical Information

Scott A. Lorch, MD, MSCE holds the Harriet and Ronald Lassin Endowed Chair in Pediatric Neonatology. He is the Director of the Center for Perinatal and Pediatric Health Disparities Research (CPHD) at The Children’s Hospital of Philadelphia, a tenured Associate Professor of Pediatrics and Neonatology at The University of Pennsylvania School of Medicine, with appointments in the Center for Clinical Epidemiology and Biostatistics, and a Senior Fellow of the Leonard Davis Institute of Health Economics at the University of Pennsylvania. Dr. Lorch is also an Attending Neonatologist at The Children’s Hospital of Philadelphia, Director of the Neonatal-Perinatal Fellowship Training Program at CHOP, and Deputy Director at the Center for Outcomes Research (COR). He earned both his Bachelor of Arts in Political Science and his Medical Degree from Northwestern University in 1992 and 1996 respectively. He received his Master of Science degree in Clinical Epidemiology (MSCE) from the Center for Clinical Epidemiology and Biostatistics at the University of Pennsylvania in 2003. As a faculty investigator at both CPHD and COR, he is centrally involved with projects concerning racial and health disparities, perinatal epidemiology, regionalization of care, health economics, and quality of care in perinatal, pediatric, and adult settings. As Director at CPHD, he facilitates engagement of faculty, trainees, and staff across the CHOP and PENN research communities interested in pediatric and perinatal disparities work.

Dr. Lorch is currently the principal investigator on several federally funded projects. These projects include "Parental Trust and Racial Disparities in the Care of Discharged Premature Infants," funded by the National Institute of Child Health and Human Development, a study entitled "Impact of Obstetric Unit Closures on Pregnancy Outcomes," funded by the Agency for Healthcare Research and Quality, and a study funded by the Health Resources and Services Administration entitled "Evaluating Maternal and Neonatal Outcomes in the Provision of Obstetric Care." Dr. Lorch is also an investigator for the national Pediatric Quality Measures Program (PQMP), leading a study of the influence of various enrollment eligibility requirements on changing the assessed quality of states using the first 23 core quality measures for pediatric care published by the Agency for Healthcare Research and Quality (AHRQ).

Dr. Lorch and his research team have the resources to examine large population-based datasets, as well as clinical trial data.  His work has investigated various measures of infant quality of care and analyses of systems for delivering neonatal care, specifically using matching techniques combined with an instrumental variables approach to reduce systematic biases and improve the validity of the results in these types of studies.  His work has also used regression-based mediation analysis to assess the intermediate factors contributing to racial/ethnic disparities in fetal death rates.  Dr. Lorch has extensive experience in quantifying the quality of health care received by pediatric and adult patients, and identifying factors, such as insurance status, that are associated with poorer quality care.  He also has experience using longitudinal cohorts of discharged premature infants to study the role of race/ethnicity on outcomes and health care use.  Additionally, his other R01-funded work investigates the role of the health system on variations in patient outcomes. 

Dr. Lorch received the Best Abstract, Child Health Call for Papers award at the AcademyHealth Annual Meeting in 2012 and the Young Investigator Award at the Perinatal Research Society Meeting in 2003. He routinely receives faculty teaching awards from the Division of Neonatal-Perinatal Medicine and honors associated with the Neonatal-Perinatal Fellowship Training Program, and consistently publishes his work in scholarly journals. 



D'Agostino JA, Passarella M, Saynisch P, Martin AE, Macheras M, Lorch SA. Preterm Infant Attendance at Health Supervision Visits. Pediatrics, 2015 Oct; 136(4): e794-802. PubMed

Jensen EA, Lorch SA. Effects of a Birth Hospital's Neonatal Intensive Care Unit Level and Annual Volume of Very Low-Birth-Weight Infant Deliveries on Morbidity and Mortality. JAMA Pediatr, 2015 Aug; 169(8): e151906. PubMed

Murthy K, Macheras M, Grobman WA, Lorch SA. Hospital of Delivery and the Racial Differences in Late Preterm and Early-Term Labor Induction. Am J Perinatol, 2015 Mar. PubMed

Tucker Edmonds B, McKenzie F, Macheras M, Srinivas SK, Lorch SA. Morbidity and mortality associated with mode of delivery for breech periviable deliveries. Am J Obstet Gynecol, 2015 Jul;213(1):70.e1-70.e12. PubMed

Lorch SA. The importance of understanding hospital and country-specific case-mix for neonatal patients. J Pediatr (Rio J), 2015 May-Jun; 91(3):207-9. PubMed

Lorch SA. The clinical and policy implications of new measures of premature infant growth. Pediatrics, 2015 Mar;135(3):e703-4. PubMed

Liu Y, Traskin M, Lorch SA, George EI, Small D. Ensemble of trees approaches to risk adjustment for evaluating a hospital's performance. Health Care Manag Sci, 2015 Mar;18(1):58-66. PubMed    

Lorch SA. Ensuring access to the appropriate health care professionals: regionalization and centralization of care in a new era of health care financing and delivery. JAMA Pediatr, 2015 Jan;169(1):11-2. PubMed

Lorch SA, Martin AE, Ranade R, Srinivas SK, Grande, D. Lessons For Providers And Hospitals From Philadelphia’s Obstetric Services Closures And Consolidations, 1997–2012. 2014 Health Aff (Millwood), 33(12), 2162-2169. PubMed

Lorch SA, Passarella M, Zeigler A. Challenges to Measuring Variation in Readmission Rates of Neonatal Intensive Care Patients. Acad Pediatr, 2014 14(5), S47-S53. PubMed

Nakamura MM, Toomey SL, Zaslavsky AM, Berry JG, Lorch SA, Jha AK, Schuster, MA. Measuring Pediatric Hospital Readmission Rates to Drive Quality Improvement. Acad Pediatr, 2014 14(5), S39-S46. PubMed

Yang F, Lorch SA, Small DS. Estimation of causal effects using instrumental variables with nonignorable missing covariates: Application to effect of type of delivery NICU on premature infants. Ann Appl Stat, 2014; 8(1):48-73.

Patrick S, Kaplan H, Passarella M, Davis M, Lorch SA. Variation in treatment of neonatal abstinence syndrome in US children’s hospitals, 2004-2011. J Perinatol, 2014 2014 Nov; 34(11), 867-872. PubMed

Guo Z, Cheng J, Lorch SA, Small DS. Using an instrumental variable to test for unmeasured confounding. Stat Med, 2014 Sep; 33(20), 3528-3546. PubMed

Enlow E, Herbert S, Jovel I,  Lorch SA, Anderson C, Chamberlain L. Neonatal Intensive Care Unit to home: The transition from parent and pediatrician perspectives, a Prospective Cohort Study. J Perinatol, 2014 Oct; 34, 761-766. PubMed

Kozhimannil K, Macheras M, Lorch SA. Trends in childbirth before 39 weeks' gestation without medical indication. Med Care, 2014 Jul; 52(7):649-57. PubMed

Tucker Edmonds B, Ahlberg C, McPherson K, Srinivas S, Lorch S. Predictors and adverse pregnancy outcomes associated with antepartum discharge against medical advice. Matern Child Health J. 2014; 18(3):640-647. PubMed

Rabner M, Meurling J, Ahlberg C, Lorch SA. The impact of growth curve changes in assessing premature infant growth. J Perinatol, 2014 Jan;34(1):49-53. PubMed

Goyal N, Zubizaretta JR, Small DS, Lorch SA. Length of stay and readmission among late preterm infants: An instrumental variable approach. Hosp Pediatr. 2013; 3(1):7-15. PubMed

Ray KN, Lorch SA. Hospitalization of early preterm, late preterm, and term infants during the first year of life by gestational age. Hosp Pediatr. 2013; 3(3):194-203. PubMed

Srinivas SK, Fager C, Lorch SA. Variations in postdelivery infection and thrombosis by hospital teaching status. Am J Obstet Gynecol. 2013; 209(6):567. PubMed

Lorch SA, Srinivas SK, Ahlberg C, Small DS. The impact of obstetric unit closures on maternal and infant pregnancy outcomes. Health Serv Res. 2013; 48(2 Pt 1):455-475. PubMed

Lorch SA. Quality measurements in pediatrics: what do they assess? JAMA Pediatr, 2013 Jan;167(1):89-90. PubMed

Ray KN, Lorch SA. Hospitalization of rural and urban infants during the first year of life. Pediatrics. 2012; 130(6):1084-93. PubMed

Goyal NK, Fiks AG, Lorch SA. Persistence of underweight status among late preterm infants . Arch Pediatr Adolesc Med. 2012; 166(5):424-30. PubMed

Lorch SA Baiocchi M, Ahlberg CE, Small DS. The differential impact of delivery hospital on the outcomes of premature infants. Pediatrics. 2012; 130(2):270-8. PubMed

Lorch SA, Kroelinger CD, Ahlberg C, Barfield WD. Factors that mediate racial/ethnic disparities in fetal death rates: United States. Am J Pub Health. 2012; 102(10):1902-10. PubMed

Foglia EE, Lorch SA. Clinical Predictors of Urinary Tract Infection in the Neonatal Intensive Care Unit.  J Neonatal Perinatal Med, 2012 Oct ;5(4):327-333. PubMed

Srinivas SK, Lorch SA. The laborist model of obstetric care: we need more evidence. Am J Obstet Gynecol. 2012; 207(1):30-5. PubMed

Lorch SA, Maheshwari P, Even-Shoshan O. The impact of certificate of need programs on neonatal intensive care units. J Perinatol. 2012; 32:39-44. PubMed (Selected for "Editor's Choice" by the e-Journal of Neonatology)

Pati S, Lorch SA, Lee GE, Sheffler-Collins S, Shah SS. Health insurance and length of stay for children hospitalized with community-acquired pneumonia. J Hosp Med. 2012; 7(4):304-10. PubMed

Lorch SA. Neonatology enters the 21st century for health care oversight: the public reporting of health care outcomes. J Perinatol, 2012 Apr;32(4):245-6. PubMed

Dennis EF, Webb DA, Lorch SA, Mathew L, Bloch JR, Culhane JF. Subjective social status and maternal health in a low income urban population. Matern Child Health J. 2012; 16(4):834-43. PubMed

DeMauro SB, Abbasi S, Lorch S. The impact of feeding interval on feeding outcomes in very low birth-weight infants. J Perinatol, 2011; 31(7), 481-486. PubMed

Shah SS, Aronson PL, Mohamad Z, Lorch SA. Delayed acyclovir therapy and death among neonates with herpes simplex virus infection. Pediatrics. 2011;128(6):1153-60. PubMed

Goyal NK, Fiks AG, Lorch SA. Association of late-preterm birth with asthma in young children: practice-based study. Pediatrics. 2011; 128(4):e830-8. PubMed

Goyal NK, Fager C, Lorch SA. Adherence to discharge guidelines for late-preterm newborns. Pediatrics. 2011; 128(1):62-71. PubMed

Tucker Edmonds B, Srinivas S, Fager C, Lorch S. Predictors of cesarean delivery for periviable neonates. Obstet Gynecol. 2011; 118:49-56. PubMed

Lorch SA, Srinivasan L, Escobar GJ. Epidemiology of apnea and bradycardia resolution in premature infants. Pediatrics. 2011; 128:62-71. PubMed

Kaplan HC, Lorch SA, Pinto-Martin J, Putt M, Silber JH: Assessment of surfactant use in preterm infants as a marker of neonatal intensive care unit quality. BMC Health Serv Res. 2011; 11:22. PubMed

Dukhovny D, Lorch SA, Schmidt B, Doyle LW, Kok JH, Roberts RS, Kamholz KL, Wang N, Mao W, Zupancic JA; Caffeine for Apnea of Prematurity Trial Group. Economic evaluation of caffeine for apnea of prematurity. Pediatrics. 2011; 127(1):e146-55. PubMed

Silber JH, Rosenbaum PR, Brachet TJ, Ross RN, Bressler LJ, Even-Shoshan O, Lorch SA, Volpp KG. The Hospital Compare Mortality Model and the Volume-Outcome Relationship. Health Serv Res. 2010;45(5 Pt 1):1148-67. PubMed

Srinivas SK, Fager C, Lorch SA. Evaluating risk-adjusted cesarean delivery rate as a measure of obstetric quality. Obstet Gynecol. 2010; 115(5):1007-13. PubMed

Glickman SW, Kit Delgado M, Hirshon JM, Hollander JE, Iwashyna TJ, Jacobs AK, Kilaru AS, Lorch SA, Mutter RL, Myers SR, Owens PL, Phelan MP, Pines JM, Seymour CW, Ewen Wang N, Branas CC; 2010 Academic emergency medicine consensus conference Beyond regionalization: Intergrated networks of emergency care. Defining and measuring successful emergency care networks: a research agenda. Acad Emerg Med. 2010; 17(12):1297-305. PubMed

Lorch SA, Myers S, Carr B. The regionalization of pediatric health care. Pediatrics. 2010; 126(6):1182-90. PubMed

Ray KN, Escobar GJ, Lorch SA. Premature infants born to adolescent mothers: health care utilization after initial discharge. Acad Pediatr. 2010; 10(5):302-8. PubMed

Lee GE, Lorch SA, Sheffler-Collins S, Kronman MP, Shah SS. National hospitalization trends for pediatric pneumonia and associated complications. Pediatrics. 2010; 126(2):204-13. PubMed

Lorch SA, Baiocchi M, Silber JH, Even-Shoshan O, Escobar GJ, Small DS. The role of outpatient facilities in explaining variations in risk-adjusted readmission rates between hospitals. Health Serv Res. 2010;45(1):24-41. PubMed

Lorch SA, Millman AM, Shah SS. Impact of congenital anomalies and treatment location on clinical outcomes and health resource use in infants hospitalized with herpes simplex virus. J Hosp Med. 2010;5(3):154-9. PubMed

Lorch SA, Wade KC, Bakewell-Sachs S, Medoff-Cooper B, Silber JH, Escobar GJ. Antibiotic Use in Premature Infants After Discharge From the Neonatal Intensive Care Unit. Clinical Pediatrics. 2010; 49(3):249-57. PubMed

Silber JH, Lorch SA, Rosenbaum PR, Medoff-Cooper B, Bakewell-Sachs S, Millman A, Mi L, Even-Shoshan O, Escobar GJ. Time to send the preemie home? Additional maturity at discharge and subsequent healthcare costs and outcomes. Health Services Research. 2009; 44:444-463. PubMed

Lorch SA, Silber JH, Even-Shoshan O, Millman A. Use of Prolonged Travel to Improve Pediatric Risk Adjustment Models. Health Services Research. 2009; 44:519-541. PubMed

Bakewell-Sachs S, Medoff-Cooper B, Escobar GJ, Silber JH, Lorch SA. Infant functional status: The timing of physiologic maturation of premature infants. Pediatrics. 2009; 123(5):e878-86. PubMed

Wade KC, Lorch SA, Bakewell-Sachs S, Medoff-Cooper B, Silber JH, Escobar GJ. Pediatric care for preterm infants after NICU discharge: high number of office visits and prescription medications. J Perinatol. 2008; 28(10):696-701. PubMed

Hibbs AM, Walsh MC, Martin RJ, Truog WE, Lorch SA, Alessandrini E, Cnaan A, Palermo L, Wadlinger SR, Coburn CE, Ballard PL, Ballard RA. One-year respiratory outcomes of preterm infants enrolled in the Nitric Oxide (to prevent) Chronic Lung Disease trial. J Pediatr. 2008; 153(4):525-9. PubMed

Lorch SA, Millman AM, Zhang X, Even-Shoshan O, Silber JH. The impact of admission day crowding on the length of stay of pediatric hospitalizations. Pediatrics. 2008;121:e718-e730. PubMed

Lorch SA, Wade KC, Bakewell-Sachs S, Medoff-Cooper B, Escobar GJ, Silber JH. Racial differences in the use of respiratory medications in premature infants after discharge from the Neonatal Intensive Care Unit. Journal of Pediatrics. 2007;151:604-610. PubMed

Cohen DM, Lorch SA, King RL, Hodinka RL, Cohn KA, Shah SS. Factors influencing the decision to test young infants for herpes simplex virus infection. Pediatr Infect Dis J. 2007; 26(12):1156-8. PubMed

King RL, Lorch SA, Cohen DM, Hodinka RL, Cohn KA, Shah SS. Routine cerebrospinal fluid enterovirus polymerase chain reaction testing reduces hospitalization and antibiotic use for infants 90 days of age or younger. Pediatrics. 2007; 120(3):489-96. PubMed

Silber JH, Rosenbaum PR, Trudeau ME, Chen W, Zhang X, Lorch SA, Kelz RR, Mosher RE, Even-Shoshan O. Preoperative antibiotics and mortality in the elderly. Annals of Surgery. 2005; 242:107-114. PubMed

Ailawadi M, Lorch SA, Barnhart KT. Cost-effectiveness of presumptively medically treating women at risk for ectopic pregnancy compared with first performing a dilatation and curettage. Fertil Steril. 2005; 83(2):376-82. PubMed

Lorch SA, Zhang X, Rosenbaum PR, Evan-Shoshan O, Silber JH. Equivalent lengths of stay in pediatric patients hospitalized in rural and non-rural hospitals. Pediatrics. 2004; 114:e400-e408. PubMed

Lorch SA, Munson D, Lightfoot R, Ischiropoulos H. Oxygen tension and inhaled nitric oxide modulate pulmonary levels of S-nitrosocysteine and 3-nitrotyrosine in rats. Pediatric Research. 2004; 56:345-352. PubMed

Lorch SA, D'Agosino J, Zimmerman R, Bernbaum J. Benign extra-axial fluid in survivors of neonatal intensive care. Archives of Pediatrics & Adolescent Medicine. 2004; 158:178-182. PubMed

Lorch SA, Cnaan A, Barnhart K. The cost-effectiveness of inhaled nitric oxide for the treatment of persistent pulmonary hypertension of the newborn. Pediatrics. 2004; 114: 417-426. PubMed