"The NICHD Data and Specimen Hub (DASH) is a centralized resource that allows researchers to share and access de-identified data from studies funded by NICHD. DASH also serves as a portal for requesting biospecimens from selected DASH studies.". This dataset is associated with the following publication: Deluca, N., K. Thomas, A. Mullikin, R. Slover, L. Stanek, D. Pilant, and E. Hubal. Geographic and demographic variability in serum PFAS concentrations for pregnant women in the United States. Journal of Exposure Science and Environmental Epidemiology. Nature Publishing Group, London, UK, 33(1): 710-724, (2023).

Repository to store and access de-identified data from NICHD funded research studies for purposes of secondary research use. It serves as mechanism for NICHD-funded extramural and intramural investigators to share research data from studies in accordance with NIH Data Sharing Policy and NIH Genomic Data Sharing Policy.

Data cannot be accessed until an agreement has been obtained. This dataset is not publicly accessible because: This manuscript was prepared using National Children’s Study Research Materials obtained from the NCS Vanguard Data and Sample Archive and Access System and the NICHD Data and Specimen Hub (DASH). Data are not available from the authors as they were obtained through Data Use Agreements. It can be accessed through the following means: By signing a Data Use Agreement with NICHD DASH to provide the National Children's Study data. Format: This Manuscript was prepared using National Children’s Study Research Materials and data. This dataset is associated with the following publication: Melnyk, L., T. Luben, J. Donovan, and K. Thomas. Associations Between Food Frequency Checklist Responses and Internal Biomarkers of Exposure to Pesticides and Heavy Metals Among U.S. Pregnant Women. Next Research. Elsevier B.V., Amsterdam, NETHERLANDS, 2(3): 100538, (2025).

Title: cohort name is masked Species: Homo sapiens Number of samples: 597 Number of named analytes: 30 Datasource url: https://dash.nichd.nih.gov/study/424643

NA. This dataset is not publicly accessible because: The data used in this manuscript were obtained under Data Use Agreements with the NCS Vanguard Data and Sample Archive and Access System and the NICHD Data and Specimen Hub (DASH). Because of the requirements of the DUA, we are unable to provide raw data; thus, the summary data are provided that are included in the manuscript. It can be accessed through the following means: The manuscript contains tables of the summary statistics. For the original data, users must have an approved DUA with NICHD DASH. Format: Word file of tables with summary statistics for maternal blood Pb, urine Pb, Pb surface wipe loading and Pb vacuum bag dust. This dataset is associated with the following publication: Stanek, L., N. Grokhowsky, B. George, and K. Thomas. Assessing lead exposure in U.S. pregnant women using biological and residential measurements. SCIENCE OF THE TOTAL ENVIRONMENT. Elsevier BV, AMSTERDAM, NETHERLANDS, (905): 167135, (2023).

Food frequency questionnaire data compared to PFAS measurements in serum of pregnant women enrolled in the National Children's Study. This dataset is not publicly accessible because: Data are not available from the authors as they were obtained through Data Use Agreements. It can be accessed through the following means: Create a Data Use Agreement with NCS Vanguard Data and Sample Archive and Access System and the NICHD Data and Specimen Hub (DASH). Format: This manuscript was prepared using National Children’s Study Research Materials obtained from the NCS Vanguard Data and Sample Archive and Access System and the NICHD Data and Specimen Hub (DASH). This dataset is associated with the following publication: Deluca, N., K. Thomas, T. Luben, and L. Melnyk. Associations between self-reported consumption of foods and serum PFAS concentrations in a sample of pregnant women in the United States. ENVIRONMENTAL RESEARCH. Elsevier B.V., Amsterdam, NETHERLANDS, 276: 121461, (2025).

🇺🇸 미국 English Metadata supporting Wallis et al. 2024 in Environment International. This dataset is not publicly accessible because: EPA cannot release personally identifiable information regarding living individuals, according to the Privacy Act and the Freedom of Information Act (FOIA). This dataset contains information about human research subjects. Because there is potential to identify individual participants and disclose personal information, either alone or in combination with other datasets, individual level data are not appropriate to post for public access. Restricted access may be granted to authorized persons by contacting the party listed. It can be accessed through the following means: Data from the National Children's Study must be accessed through the National Institutes of Health, National Institute of Child Health and Human Development's Data and Specimen Hub (DASH) at https://dash.nichd.nih.gov/. Format: Participant demographic, lifestyle, residence, occupational, and other types of data from questionnaire and observational survey instruments are in .csv and .xlsx files. PFAS measurements in serum and house dust in .csv files. This dataset is associated with the following publication: Wallis, D., K. Miller, N. Deluca, K. Thomas, C. Fuller, J. McCord, E. Cohen-Hubal, and J. Minucci. Understanding prenatal household exposures to per- and polyfluorylalkyl substances using paired Biological and dust measurements with sociodemographic and housing variables. ENVIRONMENT INTERNATIONAL. Elsevier B.V., Amsterdam, NETHERLANDS, 194(December): 109157, (2024).

Title: cohort name is masked Species: Homo sapiens Number of samples: 112 Number of named analytes: 12 Datasource url: https://dash.nichd.nih.gov/study/424675

Title: cohort name is masked
Species: Homo sapiens
Number of samples: 750
Number of named analytes: 70
Datasource url: https://dash.nichd.nih.gov/study/424664

Child language component of TalkBank system. TalkBank is system for sharing and studying conversational interactions. Includes software developed for speech recognition and analysis as well as behavior recognition. Database contains transcript and media data collected from conversations between young children and their playmates and caretakers. Conversations with older children and adults are available from TalkBank. All data are transcribed in CHAT and CA/CHAT formats.

Title: cohort name is masked
Species: Homo sapiens
Number of samples: 237
Number of named analytes: 46
Datasource url: https://dash.nichd.nih.gov/study/424665

Describes the characteristics of HIV-infected pregnant women and their HIV-exposed, uninfected children at clinical sites in Latin America, including the utilization of interventions related to decreasing the risk of mother-to-child transmission. Biospecimens are available for request through DASH. Please navigate to Explore Biospecimens at the top of this page.