Timothy Geier, PhD

Publications

• Differences in intestinal bacteria in traumatic injury survivors with and without probable posttraumatic stress disorder.

  (Geier TJ, Atkinson SN, Pan AY, Mantz-Wichman M, Jazinski-Chambers K, Hillard CJ, deRoon-Cassini TA.) J Affect Disord. 2024 Sep 15;361:528-535 PMID: 38914163 SCOPUS ID: 2-s2.0-85196827087 06/25/2024

• Racial discrimination increases the risk for nonremitting posttraumatic stress disorder symptoms in traumatically injured Black individuals living in the United States.

  (Torres L, Geier TJ, Tomas CW, Bird CM, Timmer-Murillo S, Larson CL, deRoon-Cassini TA.) J Trauma Stress. 2024 Aug;37(4):697-709 PMID: 38650107 SCOPUS ID: 2-s2.0-85191185232 04/23/2024

• History of Racial Discrimination by Police Contributes to Worse Physical and Emotional Quality of Life in Black Americans After Traumatic Injury.

  (Geier TJ, Timmer-Murillo SC, Brandolino AM, Piña I, Harb F, deRoon-Cassini TA.) J Racial Ethn Health Disparities. 2024 Jun;11(3):1774-1782 PMID: 37249827 PMCID: PMC10228454 SCOPUS ID: 2-s2.0-85160614189 05/30/2023

• Mental Health and Health-Related Quality of Life After Firearm Injury: A Preliminary Descriptive Study.

  (Timmer-Murillo SC, Melin SJH, Tomas CW, Geier TJ, Brandolino A, Schramm AT, Larson CL, deRoon-Cassini TA.) Ann Intern Med. 2023 Jul;176(7):1010-1012 PMID: 37216663 SCOPUS ID: 2-s2.0-85165222285 05/22/2023

• Comprehensive Framework of Firearm Violence Survivor Care: A Review.

  (Timmer-Murillo SC, Schroeder ME, Trevino C, Geier TJ, Schramm AT, Brandolino AM, Hargarten S, Holena D, de Moya M, Milia D, deRoon-Cassini TA.) JAMA Surg. 2023 May 01;158(5):541-547 PMID: 36947025 SCOPUS ID: 2-s2.0-85159344888 03/23/2023

• Psychiatric comorbidity in emergency general surgery patients: a prospective observational study.

  (Geier TJ, Simske N, Melin S, Trevino C, Murphy P, Schroeder ME, Brandolino A, deRoon-Cassini T, Schramm AT.) Trauma Surg Acute Care Open. 2023;8(1):e001117 PMID: 37622160 PMCID: PMC10445363 SCOPUS ID: 2-s2.0-85169922072 08/25/2023

• Facets of emotion dysregulation differentially predict depression and PTSD symptom severity following traumatic injury.

  (Timmer-Murillo S, Schramm AT, Geier TJ, Mcleod E, Larson CL, deRoon-Cassini TA.) Eur J Psychotraumatol. 2023;14(2):2193524 PMID: 36988588 PMCID: PMC10062211 SCOPUS ID: 2-s2.0-85151312767 03/30/2023

• Exposure to socioenvironmental stress as a predictor of physical and mental health.

  (Halling M, Timmer-Murillo S, Hunt JC, Geier T, Beyer KM, Malecki KM, deRoon-Cassini TA.) J Health Psychol. 2022 Aug;27(9):2091-2103 PMID: 34112016 SCOPUS ID: 2-s2.0-85107627230 06/12/2021

• Relationship Between Decreased Cortisol and Development of Chronic Pain in Traumatically Injured.

  (Trevino CM, Geier T, Morris R, Cronn S, deRoon-Cassini T.) J Surg Res. 2022 Feb;270:286-292 PMID: 34717262 PMCID: PMC8712402 SCOPUS ID: 2-s2.0-85117883809 10/31/2021

• Identification of risk for posttraumatic stress disorder symptom clusters early after trauma.

  (Timmer-Murillo SC, Hunt JC, Geier T, Brasel KJ, deRoon-Cassini TA.) J Health Psychol. 2021 Dec;26(14):2794-2800 PMID: 32538162 SCOPUS ID: 2-s2.0-85105956199 06/17/2020

• A Randomized Trial of Modified Prolonged Exposure to Prevent the Development of Posttraumatic Stress Disorder in Patients Hospitalized With Traumatic Injuries.

  (Larsen SE, Hunt JC, Geier T, Heyrman K, Schumann N, Brandolino A, Timmer-Murillo S, Bergner C, Larson C, deRoon-Cassini TA.) J Trauma Stress. 2021 Feb;34(1):104-115 PMID: 33269808 SCOPUS ID: 2-s2.0-85089460797 12/04/2020

• Validation of Abbreviated Four- and Eight-Item Versions of the PTSD Checklist for DSM-5 in a Traumatically Injured Sample.

  (Geier TJ, Hunt JC, Hanson JL, Heyrman K, Larsen SE, Brasel KJ, deRoon-Cassini TA.) J Trauma Stress. 2020 Jun;33(3):218-226 PMID: 32277772 SCOPUS ID: 2-s2.0-85084151158 04/12/2020