Muskie School of Public Service

Katherine Ahrens, Ph.D

Assistant Research Professor

Office Location

414 Wishcamper Center, Portland Campus

Phone

207-780-4847

Academic Degrees

  • Boston University, Ph.D Epidemiology, 2012
  • University of Michigan, MPH Epidemiology, 2004
  • Harvard University, AB Biology, 1999

Profile

Dr. Ahrens is an epidemiologist and assistant research professor in the Public Health Program at the USM Muskie School of Public Service. Her research focuses on maternal and child health.

She comes to the Muskie School after serving as a health scientist in the Office of Population Affairs, the federal office that administers the Title X Family Planning Program. Before that, she was a senior service fellow at the National Center for Health Statistics, where she conducted analyses using national datasets.

Dr. Ahrens teaches courses on applied data analysis in the Public Health graduate program at the USM Muskie School of Public Service.

Areas of Expertise

epidemiology, family planning, birth spacing, pregnancy outcomes, children’s health

Recent Publications

Thoma ME, Rossen LM, De Silva DA, Warner M, Simon AE, Moskosky S, Ahrens KA. Beyond birth outcomes: Interpregnancy interval and injury-related infant mortality. Paediatr Perinat Epidemiol. 2019 Sep;33(5):360-370.

Loyola Briceno AC, Ahrens KA, Thoma ME, Moskosky S. Availability of Services Related to Achieving Pregnancy in U.S. Publicly Funded Family Planning Clinics. Womens Health Issues. 2019 Sep 4. pii: S1049-3867(19)30139-2.

Janis JA, Ahrens KA, Ziller EC. Female Age at First Sexual Intercourse by Rural-Urban Residence and Birth Cohort. Womens Health Issues. 2019 Aug 20. pii: S1049-3867(19)30020-9.

Carwile JL, Fleisch AF, Young K, Ahrens KA. Electronic Cigarette Use in US Households With Children: The "New" Secondhand Smoke. JAMA Pediatr. 2019 Jul1;173(7):693-695.

Dianat S, Fox E, Ahrens KA, Upadhyay UD, Zlidar VM, Gallo MF, Stidd RL, Moskosky S, Dehlendorf C. Side Effects and Health Benefits of Depot Medroxyprogesterone Acetate: A Systematic Review. Obstet Gynecol. 2019 Feb;133(2):332-341.

Fowler C, Ahrens KA, Decker E, Gable J, Wong J, Frederiksen B, Loyola Briceño AC, Moskosky B. Patterns and trends in contraceptive use among women attending Title X clinics and a national sample of low-income women. Contraception X, available online March 2019.

Haight SC, Hogue CJ, Raskind-Hood CL, Ahrens KA. Short interpregnancy intervals and adverse pregnancy outcomes by maternal age in the United States. Ann Epidemiol. 2019 Mar; 31:38-44.

Ahrens KA, Hutcheon JA. Introduction to the Supplement: Birth spacing in the United States. Paediatr Perinat Epidemiol. 2019 Jan;33(1):O1-O4.

Ahrens KA, Hutcheon JA, Ananth CV, Basso O, Briss PA, Ferré CD, Frederiksen BN, Harper S, Hernández-Díaz S, Hirai AH, Kirby RS, Klebanoff MA, Lindberg L, Mumford SL, Nelson HD, Platt RW, Rossen LM, Stuebe AM, Thoma ME, Vladutiu CJ, Moskosky S. Report of the Office of Population Affairs expert work group meeting on short birth spacing and adverse pregnancy outcomes: methodological quality of existing studies and future directions for research. Paediatr Perinat Epidemiol. 2019 Jan;33(1):O5-O14.

Hutcheon JA, Moskosky S, Ananth CV, Basso O, Briss PA, Ferré CD, Frederiksen BN, Harper S, Hernández-Díaz S, Hirai AH, Kirby RS, Klebanoff MA, Lindberg L, Mumford SL, Nelson HD, Platt RW, Rossen LM, Stuebe AM, Thoma ME, Vladutiu CJ, Ahrens KA. Good practices for studying the causal effect of short birth spacing on adverse pregnancy outcomes. Paediatr Perinat Epidemiol. 2019 Jan;33(1):O15-O24.

Ahrens KA, Nelson HD, Stidd R, et al. Short interpregnancy intervals and risk of adverse perinatal outcomes: an updated systematic review. Paediatr Perinat Epidemiol. 2019 Jan;33(1):O25-O47.

Hutcheon J, Nelson HD, Stidd R, Moskoksy S, Ahrens KA. Short interpregnancy intervals and risk of maternal morbidity: an updated systematic review. Paediatr Perinat Epidemiol. 2019 Jan;33(1):O48-O59.