Stephan Ehrhardt

Research output

Research output per year 2002 2004 2005 2006 2015 2016 2018 2019 2020 2023 2023

• 82 Article
• 8 Review article
• 3 Comment/debate
• 2 Editorial
• 4 More
  • 2 Letter
  • 1 Chapter
  • 1 Short survey

Research output per year

Research output per year

Search results

• 2023

  Monocyte Distribution Width as a Diagnostic Marker for Infection: A Systematic Review and Meta-analysis

  Malinovska, A., Hernried, B., Lin, A., Badaki-Makun, O., Fenstermacher, K., Ervin, A. M., Ehrhardt, S., Levin, S. & Hinson, J. S., Jul 2023, In: CHEST. 164, 1, p. 101-113 13 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Monocytes 100%
  • Sepsis 97%
  • Meta-Analysis 90%
  • Systematic Reviews 88%
  • Infections 57%

• Pilot Trial Characteristics, Postpilot Design Modifications, and Feasibility of Full-Scale Trials

  Ying, X. & Ehrhardt, S., Sep 14 2023, In: JAMA Network Open. 6, 9, p. E2333642

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Cohort Studies 100%
  • PubMed 58%
  • Health Care Outcome Assessment 48%
  • Delivery of Health Care 44%

• Pilot trials may improve the quality of full-scale trials: a meta-research study

  Ying, X. & Ehrhardt, S., Aug 2023, In: Journal of Clinical Epidemiology. 160, p. 117-125 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Meta-Analysis 100%
  • Risk Assessment 55%
  • Publications 55%
  • PubMed 53%
  • Research Personnel 46%

• Re-evaluating the role of pilot trials in informing effect and sample size estimates for full-scale trials: a meta-epidemiological study

  Ying, X., Robinson, K. A. & Ehrhardt, S., Dec 1 2023, In: BMJ Evidence-Based Medicine. 28, 6, p. 383-391 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Sample Size 100%
  • Epidemiologic Studies 93%
  • PubMed 29%
  • Direction compound 27%
  • Logistic Models 24%

• Screening for Resistant Bacteria, Antimicrobial Resistance Genes, Sexually Transmitted Infections and Schistosoma spp. in Tissue Samples from Predominantly Vaginally Delivered Placentae in Ivory Coast and Ghana

  Franz, R., Hahn, A., Hagen, R. M., Rohde, H., Eberhardt, K. A., Ehrhardt, S., Baum, J., Claussen, L., Feldt, T., Hinz, R., Barthel, D., Bindt, C., Tagbor, H., Nguah, S. B., Koffi, M., Köller, T., Warnke, P., Pankok, F., Taudien, S., Frickmann, H., & 1 othersSchoppen, S., Aug 2023, In: Pathogens. 12, 8, 999.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Cote d'Ivoire 100%
  • Schistosoma 99%
  • Ghana 87%
  • Sexually Transmitted Diseases 70%
  • Placenta 66%

• Transfusing Convalescent Plasma as Post-Exposure Prophylaxis Against Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Infection: A Double-Blinded, Phase 2 Randomized, Controlled Trial

  Shoham, S., Bloch, E. M., Casadevall, A., Hanley, D., Lau, B., Gebo, K., Cachay, E., Kassaye, S. G., Paxton, J. H., Gerber, J., Levine, A. C., Naeim, A., Currier, J., Patel, B., Allen, E. S., Anjan, S., Appel, L., Baksh, S., Blair, P. W., Bowen, A., & 36 othersBroderick, P., Caputo, C. A., Cluzet, V., Cordisco, M. E., Cruser, D., Ehrhardt, S., Forthal, D., Fukuta, Y., Gawad, A. L., Gniadek, T., Hammel, J., Huaman, M. A., Jabs, D. A., Jedlicka, A., Karlen, N., Klein, S., Laeyendecker, O., Lane, K., McBee, N., Meisenberg, B., Merlo, C., Mosnaim, G., Park, H. S., Pekosz, A., Petrini, J., Rausch, W., Shade, D. M., Shapiro, J. R., Robinson Singleton, J., Sutcliffe, C., Thomas, D. L., Yarava, A., Zand, M., Zenilman, J. M., Tobian, A. A. R. & Sullivan, D. J., Feb 1 2023, In: Clinical Infectious Diseases. 76, 3, p. E477-E486

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Post-Exposure Prophylaxis 100%
  • Severe Acute Respiratory Syndrome 88%
  • Coronavirus 60%
  • Randomized Controlled Trials 46%
  • Infections 13%

• Transfusion reactions associated with COVID-19 convalescent plasma in outpatient clinical trials

  Huaman, M. A., Raval, J. S., Paxton, J. H., Mosnaim, G. S., Patel, B., Anjan, S., Meisenberg, B. R., Levine, A. C., Marshall, C. E., Yarava, A., Shenoy, A. G., Heath, S. L., Currier, J. S., Fukuta, Y., Blair, J. E., Spivak, E. S., Petrini, J. R., Broderick, P. B., Rausch, W., Cordisco, M. E., & 38 othersHammel, J., Greenblatt, B., Cluzet, V. C., Cruser, D., Oei, K., Abinante, M., Hammitt, L. L., Sutcliffe, C. G., Forthal, D. N., Zand, M. S., Cachay, E. R., Kassaye, S. G., Ram, M., Wang, Y., Das, P., Lane, K., McBee, N. A., Gawad, A. L., Karlen, N., Ford, D. E., Laeyendecker, O., Pekosz, A., Klein, S. L., Ehrhardt, S., Lau, B., Baksh, S. N., Shade, D. M., Casadevall, A., Hanley, D. F., Ou, J., Gniadek, T. J., Ziman, A., Shoham, S., Gebo, K. A., Bloch, E. M., Tobian, A. A. R., Sullivan, D. J. & Gerber, J. M., Sep 2023, In: Transfusion. 63, 9, p. 1639-1648 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Transfusion Reaction 100%
  • Outpatients 56%
  • Clinical Trials 49%
  • Urticaria 17%
  • Hospitalization 16%
• 2022

  Early Outpatient Treatment for Covid-19 with Convalescent Plasma

  Sullivan, D. J., Gebo, K. A., Shoham, S., Bloch, E. M., Lau, B., Shenoy, A. G., Mosnaim, G. S., Gniadek, T. J., Fukuta, Y., Patel, B., Heath, S. L., Levine, A. C., Meisenberg, B. R., Spivak, E. S., Anjan, S., Huaman, M. A., Blair, J. E., Currier, J. S., Paxton, J. H., Gerber, J. M., & 38 othersPetrini, J. R., Broderick, P. B., Rausch, W., Cordisco, M. E., Hammel, J., Greenblatt, B., Cluzet, V. C., Cruser, D., Oei, K., Abinante, M., Hammitt, L. L., Sutcliffe, C. G., Forthal, D. N., Zand, M. S., Cachay, E. R., Raval, J. S., Kassaye, S. G., Foster, E. C., Roth, M., Marshall, C. E., Yarava, A., Lane, K., McBee, N. A., Gawad, A. L., Karlen, N., Singh, A., Ford, D. E., Jabs, D. A., Appel, L. J., Shade, D. M., Ehrhardt, S., Baksh, S. N., Laeyendecker, O., Pekosz, A., Klein, S. L., Casadevall, A., Tobian, A. A. R. & Hanley, D. F., May 5 2022, In: New England Journal of Medicine. 386, 18, p. 1700-1711 12 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Coronavirus 100%
  • Outpatients 59%
  • Random Allocation 17%
  • Disease Progression 14%
  • Hospitalization 13%

• Psychometric properties of the Brief Infant-Toddler Social and Emotional Assessment (BITSEA) in two-year-old Ivorian and Ghanaian children

  on behalf of the International CDS Study Group, 2022, In: Applied Developmental Science. 26, 3, p. 567-577 11 p.

  Research output: Contribution to journal › Article › peer-review

  • Psychometrics 100%
  • psychometrics 91%
  • infant 89%
  • Child 46%
  • Mothers 45%

• Psychomotor development in two-year-old Ivorian and Ghanaian children – Psychometric properties of the Kilifi Developmental Inventory

  International CDS Study Group, Nov 2022, In: British Journal of Developmental Psychology. 40, 4, p. 471-486 16 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Psychometrics 100%
  • psychometrics 91%
  • Equipment and Supplies 63%
  • Child 46%
  • Psychomotor Performance 29%

• Thromboembolic events in deceased patients with proven SARS-CoV-2 infection: Frequency, characteristics and risk factors

  Voigtlaender, M., Edler, C., Gerling, M., Schädler, J., Ondruschka, B., Schröder, A. S., Sperhake, J., Ehrhardt, S., Wang, L., Haddad, M., Kiencke, V., Renné, T., Roedl, K., Kluge, S., Wichmann, D. & Langer, F., Oct 2022, In: Thrombosis research. 218, p. 171-176 6 p.

  Research output: Contribution to journal › Article › peer-review

  • Severe Acute Respiratory Syndrome 90%
  • Thromboembolism 78%
  • Coronavirus 23%
  • Hereditary Thrombophilia 21%
  • Pulmonary Embolism 18%
• 2021

  Association between switching of primary outcomes and reported trial findings among randomized drug trials from China

  Jia, Y., Huang, D., Wen, J., Liang, J., Qureshi, R., Wang, Y., Rosman, L., Chen, Q., Robinson, K. A., Gagnier, J. J., Celentano, D. D. & Ehrhardt, S., Apr 2021, In: Journal of Clinical Epidemiology. 132, p. 10-17 8 p.

  Research output: Contribution to journal › Article › peer-review

  • China 100%
  • Randomized Controlled Trials 83%
  • Pharmaceutical Preparations 51%
  • Registries 39%
  • Bibliographic Databases 33%
  1 Scopus citations

• Dipeptidyl peptidase-4 inhibitor cardiovascular safety in patients with type 2 diabetes, with cardiovascular and renal disease: a retrospective cohort study

  Baksh, S., Wen, J., Mansour, O., Chang, H. Y., McAdams-DeMarco, M., Segal, J. B., Ehrhardt, S. & Alexander, G. C., Dec 2021, In: Scientific reports. 11, 1, 16637.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Dipeptidyl-Peptidase IV Inhibitors 100%
  • Patient Safety 74%
  • Type 2 Diabetes Mellitus 56%
  • Cardiovascular Diseases 54%
  • Cohort Studies 51%

• Effect of redundant clinical trials from mainland China evaluating statins in patients with coronary artery disease: Cross sectional study

  Jia, Y., Wen, J., Qureshi, R., Ehrhardt, S., Celentano, D. D., Wei, X., Rosman, L., Wen, Y. & Robinson, K. A., Feb 2 2021, In: The BMJ. 372, n48.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Hydroxymethylglutaryl-CoA Reductase Inhibitors 100%
  • Coronary Artery Disease 85%
  • China 83%
  • Cross-Sectional Studies 67%
  • Clinical Trials 67%

• Natural vs. programmed cycles for frozen embryo transfer: study protocol for an investigator-initiated, randomized, controlled, multicenter clinical trial

  NatPro Study Group, Dec 2021, In: Trials. 22, 1, 660.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Embryo Transfer 100%
  • Multicenter Studies 74%
  • Research Personnel 60%
  • Randomized Controlled Trials 58%
  • Pre-Eclampsia 46%
• 2020

  Assessment of duplicate publication of Chinese-sponsored randomized clinical trials

  Jia, Y., Huang, D., Wen, J., Qureshi, R., Wang, Y., Rosman, L., Chen, Q., Robinson, K. A., Gagnier, J. J., Ehrhardt, S. & Celentano, D. D., Dec 2 2020, In: JAMA Network Open. 3, 12, e20227104.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Duplicate Publications 100%
  • Randomized Controlled Trials 37%
  • Language 21%
  • Registries 21%
  • Publications 17%
  1 Scopus citations

• Assessment of Language and Indexing Biases among Chinese-Sponsored Randomized Clinical Trials

  Jia, Y., Huang, D., Wen, J., Wang, Y., Rosman, L., Chen, Q., Robinson, K. A., Gagnier, J. J., Ehrhardt, S. & Celentano, D. D., May 28 2020, In: JAMA Network Open. 3, 5, 2020.5894.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Language 100%
  • Randomized Controlled Trials 85%
  • Registries 30%
  • Bibliographic Databases 29%
  • Pharmaceutical Preparations 11%
  5 Scopus citations

• Characteristics of registered clinical trials assessing treatments for COVID-19: A cross-sectional analysis

  Mehta, H. B., Ehrhardt, S., Moore, T. J., Segal, J. B. & Alexander, G. C., Jun 9 2020, In: BMJ open. 10, 6, e039978.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Coronavirus 100%
  • Cross-Sectional Studies 51%
  • Clinical Trials 51%
  • Pandemics 21%
  • Therapeutics 13%
  15 Scopus citations

• Dipeptidyl peptidase-4 inhibitors and cardiovascular events in patients with type 2 diabetes, without cardiovascular or renal disease

  Baksh, S. N., Segal, J. B., McAdams-DeMarco, M., Kalyani, R. R., Caleb Alexander, G. & Ehrhardt, S., Oct 2020, In: PloS one. 15, 10 October, e0240141.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Dipeptidyl-Peptidase IV Inhibitors 100%
  • Type 2 Diabetes Mellitus 56%
  • Cardiovascular Diseases 54%
  • Metformin 40%
  • Kidney 40%

• Perspectives on the future of epidemiology: A framework for training

  Lau, B., Duggal, P., Ehrhardt, S., Armenian, H., Branas, C. C., Colditz, G. A., Fox, M. P., Hawes, S. E., He, J., Hofman, A., Keyes, K., Ko, A. I., Lash, T. L., Levy, D., Lu, M., Morabia, A., Ness, R., Javier Nieto, F., Schisterman, E. F., Stürmer, T., & 4 othersSzklo, M., Werler, M., Wilcox, A. J. & Celentano, D. D., Jul 1 2020, In: American journal of epidemiology. 189, 7, p. 634-639 6 p.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  • Epidemiology 100%
  • Public Health 45%
  • Social Determinants of Health 42%
  • Epidemiologists 42%
  • Health Communication 41%

• Prevention of mother-to-child transmission of hepatitis B virus: protocol for a one-arm, open-label intervention study to estimate the optimal timing of tenofovir in pregnancy

  Bierhoff, M., Nelson, K. E., Guo, N., Jia, Y., Angkurawaranon, C., Jittamala, P., Carrara, V., Watthanaworawit, W., Ling, C., Tongprasert, F., van Vugt, M., Rijken, M., Nosten, F., McGready, R., Ehrhardt, S. & Thio, C. L., Sep 13 2020, In: BMJ open. 10, 9, p. e038123

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Tenofovir 100%
  • Vertical Infectious Disease Transmission 99%
  • Hepatitis B virus 76%
  • Pregnancy 47%
  • DNA 25%
  3 Scopus citations

• Tenofovir for prevention of mother to child transmission of hepatitis B in migrant women in a resource-limited setting on the Thailand-Myanmar border: A commentary on challenges of implementation

  Bierhoff, M., Rijken, M. J., Yotyingaphiram, W., Pimanpanarak, M., Van Vugt, M., Angkurawaranon, C., Nosten, F., Ehrhardt, S., Thio, C. L. & McGready, R., Sep 10 2020, In: International journal for equity in health. 19, 1, 156.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  • Myanmar 100%
  • Tenofovir 90%
  • Vertical Infectious Disease Transmission 90%
  • Thailand 76%
  • contagious disease 69%
  1 Scopus citations
• 2019

  Corrigendum: Epidemiology at a time for unity (International Journal of Epidemiology (2018) 47 (1366-1371) DOI: 10.1093/ije/dyy179)

  Lau, B., Duggal, P. & Ehrhardt, S., Feb 1 2019, In: International journal of epidemiology. 48, 1, p. 321 1 p.

  Research output: Contribution to journal › Comment/debate › peer-review

  Open Access

  • Epidemiology 100%
  1 Scopus citations

• Escitalopram for agitation in Alzheimer's disease (S-CitAD): Methods and design of an investigator-initiated, randomized, controlled, multicenter clinical trial

  S-CitAD Research Group, Nov 2019, In: Alzheimer's and Dementia. 15, 11, p. 1427-1436 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Citalopram 100%
  • Clinical Trials 83%
  • dementia 80%
  • Multicenter Studies 69%
  • Alzheimer Disease 62%
  8 Scopus citations

• From epidemiologic knowledge to improved health: A vision for translational epidemiology

  Windle, M., Lee, H. D., Cherng, S. T., Lesko, C. R., Hanrahan, C., Jackson, J. W., McAdams-Demarco, M., Ehrhardt, S., Baral, S. D., D'Souza, G. & Dowdy, D. W., Dec 31 2019, In: American journal of epidemiology. 188, 12, p. 2049-2060 12 p.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  • Ocular Vision 100%
  • Epidemiology 93%
  • Health 58%
  • Population Health 48%
  • Public Health 42%
  2 Scopus citations

• Internalizing symptoms in very low birth weight preschoolers: Symptom level and risk factors from four rating perspectives in a controlled multicenter study

  Helle, N., Barkmann, C., Ehrhardt, S., Wense, A. V. D., Nestoriuc, Y. & Bindt, C., Mar 1 2019, In: Journal of Affective Disorders. 246, p. 74-81 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Very Low Birth Weight Infant 100%
  • Multicenter Studies 70%
  • rating 59%
  • Psychological Distress 40%
  • Postpartum Period 38%
  2 Scopus citations

• Public Comments on the Proposed Common Rule Mandate for Single-IRB Review of Multisite Research

  Taylor, H. A., Ehrhardt, S. & Ervin, A. M., Jan 1 2019, In: Ethics and Human Research. 41, 1, p. 15-21 7 p.

  Research output: Contribution to journal › Article › peer-review

  • public comment 100%
  • institutional review 98%
  • Research Ethics Committees 83%
  • United States Dept. of Health and Human Services 37%
  • Empirical Research 17%
  3 Scopus citations

• When is enough, enough? When are more observational epidemiologic studies needed to resolve a research question: Illustrations using biomarker-cancer associations

  Marrone, M. T., Tsilidis, K. K., Ehrhardt, S., Joshu, C. E., Rebbeck, T. R., Sellers, T. A. & Platz, E. A., Feb 2019, In: Cancer Epidemiology Biomarkers and Prevention. 28, 2, p. 239-247 9 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Tumor Biomarkers 100%
  • Epidemiologic Studies 85%
  • Observational Studies 79%
  • Meta-Analysis 76%
  • Medical Futility 20%
  1 Scopus citations
• 2018

  Characteristics and trends of clinical trials funded by the National Institutes of Health between 2005 and 2015

  Gresham, G. K., Ehrhardt, S., Meinert, J. L., Appel, L. J. & Meinert, C. L., Feb 1 2018, In: Clinical Trials. 15, 1, p. 65-74 10 p.

  Research output: Contribution to journal › Article › peer-review

  • National Institutes of Health (U.S.) 100%
  • Clinical Trials 62%
  • Am 580 16%
  • Budgets 12%
  • Biomedical Research 10%
  11 Scopus citations

• Efficacy of introducing a checklist to reduce central venous line associated bloodstream infections in the ICU caring for adult patients

  Wichmann, D., Belmar Campos, C. E., Ehrhardt, S., Kock, T., Weber, C., Rohde, H. & Kluge, S., Jun 8 2018, In: BMC infectious diseases. 18, 1, 267.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Checklist 100%
  • Infections 49%
  • Catheters 40%
  • insulin receptor-related receptor 30%
  • Control Groups 22%
  9 Scopus citations

• Epidemiology at a time for unity

  Lau, B., Duggal, P. & Ehrhardt, S., Oct 1 2018, In: International journal of epidemiology. 47, 5, p. 1366-1371 6 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access
  3 Scopus citations

• Knowledge regarding hepatitis B mother-to-child transmission among healthcare workers in South China

  Chen, Y., Xie, C., Zhang, Y., Li, Y., Ehrhardt, S., Thio, C. L., Nelson, K. E., Chen, Y. & Lin, C. S., May 2018, In: Journal of viral hepatitis. 25, 5, p. 561-570 10 p.

  Research output: Contribution to journal › Article › peer-review

  • Vertical Infectious Disease Transmission 100%
  • Hepatitis B virus 76%
  • Hepatitis B 76%
  • Health Personnel 68%
  • China 63%
  2 Scopus citations

• Microbial Preparations (Probiotics) for the Prevention of Clostridium difficile Infection in Adults and Children: An Individual Patient Data Meta-analysis of 6,851 Participants

  Johnston, B. C., Lytvyn, L., Lo, C. K. F., Allen, S. J., Wang, D., Szajewska, H., Miller, M., Ehrhardt, S., Sampalis, J., Duman, D. G., Pozzoni, P., Colli, A., Lönnermark, E., Selinger, C. P., Wong, S., Plummer, S., Hickson, M., Pancheva, R., Hirsch, S., Klarin, B., & 8 othersGoldenberg, J. Z., Wang, L., Mbuagbauw, L., Foster, G., Maw, A., Sadeghirad, B., Thabane, L. & Mertz, D., Jul 1 2018, In: Infection control and hospital epidemiology. 39, 7, p. 771-781 11 p.

  Research output: Contribution to journal › Article › peer-review

  • Clostridium Infections 100%
  • Probiotics 85%
  • Data Analysis 59%
  • Meta-Analysis 59%
  • Child 34%
  17 Scopus citations

• Postpartum posttraumatic and acute stress in mothers and fathers of infants with very low birth weight: Cross-sectional results from a controlled multicenter cohort study

  Helle, N., Barkmann, C., Ehrhardt, S. & Bindt, C., Aug 1 2018, In: Journal of Affective Disorders. 235, p. 467-473 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Very Low Birth Weight Infant 100%
  • Fathers 79%
  • Postpartum Period 77%
  • Multicenter Studies 70%
  • infant 68%
  14 Scopus citations

• Why public comments matter: The case of the national institutes of health policy on single institutional review board review of multicenter studies

  Ervin, A. M., Taylor, H. A., Ehrhardt, S. & Meinert, C. L., 2018, In: Academic Medicine. 93, 8, p. 1157-1161 5 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • public comment 100%
  • institutional review 98%
  • health policy 74%
  • health 35%
  • knowledge gap 15%
  2 Scopus citations
• 2017

  Knowledge of and attitudes towards hepatitis B and its transmission from mother to child among pregnant women in Guangdong Province, China

  Han, Z., Yin, Y., Zhang, Y., Ehrhardt, S., Thio, C. L., Nelson, K. E., Bai, X. & Hou, H., Jun 2017, In: PloS one. 12, 6, e0178671.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • hepatitis B 100%
  • Hepatitis B virus 92%
  • pregnant women 84%
  • Vertical Infectious Disease Transmission 84%
  • Hepatitis B 64%
  18 Scopus citations

• Trajectories of maternal ante- and postpartum depressive symptoms and their association with child- and mother-related characteristics in a West African birth cohort study

  International CDS Study Group, Nov 2017, In: PloS one. 12, 11, e0187267.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Postpartum Period 100%
  • Parturition 72%
  • Cohort Studies 71%
  • Mothers 66%
  • Anxiety 50%
  7 Scopus citations
• 2016

  A targeted door-to-door strategy for sleeping sickness detection in low-prevalence settings in Côte d'Ivoire

  Koffi, M., N'Djetchi, M., Ilboudo, H., Kaba, D., Coulibaly, B., N'Gouan, E., Kouakou, L., Bucheton, B., Solano, P., Courtin, F., Ehrhardt, S. & Jamonneau, V., 2016, In: Parasite. 23, 5, 23.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • African Trypanosomiasis 100%
  • trypanosomiasis 88%
  • African trypanosomiasis 86%
  • Mass Screening 54%
  • screening 33%
  20 Scopus citations

• Is the WHO guide on essential practice of postpartum newborn care used in a district health care facility?

  Klinkott, R., Mushi, V., Komba, G., Krüger, C., Schultz, A., Stich, A., Stüfe, A., Weber, M. & Ehrhardt, S., 2016, In: Journal of tropical pediatrics. 62, 6, p. 436-445 10 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Postnatal Care 100%
  • Nurse Midwives 97%
  • Health Facilities 77%
  • Newborn Infant 56%
  • Delivery of Health Care 44%

• Longitudinal course of ante- and postpartum generalized anxiety symptoms and associated factors in West-African women from Ghana and ZAF

  Barthel, D., Kriston, L., Barkmann, C., Appiah-Poku, J., Te Bonle, M., Esther Doris, K. Y., Carine Esther, B. K., Jean Armel, K. E., Mohammed, Y., Osei, Y., Fordjour, D., Owusu, D., Eberhardt, K. A., Hinz, R., Koffi, M., N'Goran, E., Nguah, S. B., Tagbor, H., Schoppen, S., Ehrhardt, S., & 1 othersBindt, C., Jun 1 2016, In: Journal of Affective Disorders. 197, p. 125-133 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Ghana 100%
  • Postpartum Period 77%
  • Anxiety 58%
  • anxiety 50%
  • Patient Health Questionnaire 16%
  10 Scopus citations

• NIH policy on single-IRB review - A new era in multicenter studies

  Ervin, A. M., Taylor, H. A. & Ehrhardt, S., Dec 15 2016, In: New England Journal of Medicine. 375, 24, p. 2315-2317 3 p.

  Research output: Contribution to journal › Short survey › peer-review
  18 Scopus citations

• Postpartum anxiety and adjustment disorders in parents of infants with very low birth weight: Cross-sectional results from a controlled multicentre cohort study

  Helle, N., Barkmann, C., Ehrhardt, S., Von Der Wense, A., Nestoriuc, Y. & Bindt, C., Apr 1 2016, In: Journal of Affective Disorders. 194, p. 128-134 7 p.

  Research output: Contribution to journal › Article › peer-review

  • Adjustment Disorders 100%
  • Very Low Birth Weight Infant 90%
  • Anxiety Disorders 71%
  • Postpartum Period 69%
  • Multicenter Studies 63%
  20 Scopus citations

• Saccharomyces boulardii to prevent antibiotic-associated diarrhea: A randomized, double-masked, placebo-controlled trial

  for the SacBo Study Groupa, Jan 1 2016, In: Open Forum Infectious Diseases. 3, 1

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Saccharomyces boulardii 100%
  • Diarrhea 51%
  • Placebos 42%
  • Anti-Bacterial Agents 40%
  • Clostridium difficile 37%
  37 Scopus citations
• 2015

  A survey study of pregnant women and healthcare practitioners assessing the knowledge of attitudes and practices of hepatitis B management at a teaching hospital in Kumasi, Ghana, West Africa

  Cheng, A., Jose, J. A., Larsen-Reindorf, R., Small, C., Nde, H., Dugas, L., Ehrhardt, S., Nelson, K., Ezeanolue, E. & Layden, J., Dec 1 2015, In: Open Forum Infectious Diseases. 2, 4, p. 1-3 3 p.

  Research output: Contribution to journal › Article › peer-review

  Open Access

  • Health Knowledge, Attitudes, Practice 100%
  • Ghana 98%
  • Hepatitis B virus 76%
  • Hepatitis B 76%
  • Teaching Hospitals 73%
  8 Scopus citations

• Breastfeeding while taking lamivudine or tenofovir disoproxil fumarate: A review of the evidence

  Ehrhardt, S., Xie, C., Guo, N., Nelson, K. & Thio, C. L., Jan 15 2015, In: Clinical Infectious Diseases. 60, 2, p. 275-278 4 p.

  Research output: Contribution to journal › Review article › peer-review

  Open Access

  • Tenofovir 100%
  • Lamivudine 94%
  • Breast Feeding 78%
  • Hepatitis B virus 38%
  • Pregnancy 35%
  37 Scopus citations

• Evidence gaps and ethical review of multicenter studies: Empirical research is needed to guide federal policy

  Ervin, A. M., Taylor, H. A., Meinert, C. L. & Ehrhardt, S., Nov 6 2015, In: Science. 350, 6261, p. 632-633 2 p.

  Research output: Contribution to journal › Review article › peer-review

  Open Access
  10 Scopus citations

• Global elimination of mother-to-child transmission of hepatitis B: Revisiting the current strategy

  Thio, C. L., Guo, N., Xie, C., Nelson, K. E. & Ehrhardt, S., Aug 1 2015, In: The Lancet Infectious Diseases. 15, 8, p. 981-985 5 p.

  Research output: Contribution to journal › Comment/debate › peer-review

  • Vertical Infectious Disease Transmission 100%
  • Hepatitis B virus 76%
  • Hepatitis B 76%
  • Hepatitis B Vaccines 28%
  • Income 18%
  57 Scopus citations

• Letters

  Ehrhardt, S., Appel, L. J. & Meinert, C. L., Dec 15 2015, In: JAMA - Journal of the American Medical Association. 314, 23, p. 2566-2567 2 p.

  Research output: Contribution to journal › Letter › peer-review

  Open Access
  57 Scopus citations

• Screening for depression in pregnant women from Côte d'Ivoire and Ghana: Psychometric properties of the Patient Health Questionnaire-9

  Barthel, D., Barkmann, C., Ehrhardt, S., Schoppen, S., Bindt, C., Appiah-Poku, J., Baum, J., Te Bonle, M., Burchard, G. D., Claussen, L., Deymann, S., Eberhardt, K. A., Ewert, H., Feldt, T., Fordjour, D., Guo, N., Hahn, A., Hinz, R., Jaeger, A., Koffi, J. E., & 13 othersKoffi, M., Kra, E., Loag, W., May, J., Mohammed, Y., N'Goran, E., Nguah, S. B., Osei, Y., Posdzich, S., Reime, B., Schlüter, L., Tagbor, H. & Tannich, E., Nov 15 2015, In: Journal of Affective Disorders. 187, p. 232-240 9 p.

  Research output: Contribution to journal › Article › peer-review

  • Patient Health Questionnaire 100%
  • Ghana 98%
  • pregnant women 88%
  • Psychometrics 74%
  • psychometrics 68%
  15 Scopus citations

• Very low birth-weight as a risk factor for postpartum depression four to six weeks postbirth in mothers and fathers: Cross-sectional results from a controlled multicentre cohort study

  Helle, N., Barkmann, C., Bartz-Seel, J., Diehl, T., Ehrhardt, S., Hendel, A., Nestoriuc, Y., Schulte-Markwort, M., Von Der Wense, A. & Bindt, C., Jul 15 2015, In: Journal of Affective Disorders. 180, p. 154-161 8 p.

  Research output: Contribution to journal › Article › peer-review

  • Postpartum Depression 100%
  • Very Low Birth Weight Infant 96%
  • Fathers 76%
  • Multicenter Studies 68%
  • father 61%
  43 Scopus citations