Investigation of Prenatal Pesticide Exposure and Neurodevelopmental Deficits in Northern Thailand: Protocol for a Longitudinal Birth Cohort Study
BackgroundPrenatal exposure to pesticides has been linked to adverse neurodevelopmental outcomes. Gaps exist in the current literature about the timing and magnitude of exposures that result in these adverse outcomes. ObjectiveThe Study of Asian Women and their Of...
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| Format: | Article |
| Language: | English |
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JMIR Publications
2022-02-01
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| Series: | JMIR Research Protocols |
| Online Access: | https://www.researchprotocols.org/2022/2/e31696 |
| _version_ | 1827858672624074752 |
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| author | Brittney O Baumert Nancy Fiedler Tippawan Prapamontol Panrapee Suttiwan Warangkana Naksen Parinya Panuwet Supattra Sittiwang Chayada Dokjunyam Melissa M Smarr Carmen J Marsit P Barry Ryan Wattasit Siriwong Mark G Robson Dana Boyd Barr |
| author_facet | Brittney O Baumert Nancy Fiedler Tippawan Prapamontol Panrapee Suttiwan Warangkana Naksen Parinya Panuwet Supattra Sittiwang Chayada Dokjunyam Melissa M Smarr Carmen J Marsit P Barry Ryan Wattasit Siriwong Mark G Robson Dana Boyd Barr |
| author_sort | Brittney O Baumert |
| collection | DOAJ |
| description |
BackgroundPrenatal exposure to pesticides has been linked to adverse neurodevelopmental outcomes. Gaps exist in the current literature about the timing and magnitude of exposures that result in these adverse outcomes.
ObjectiveThe Study of Asian Women and their Offspring’s Development and Environmental Exposures (SAWASDEE) cohort was established to investigate the impact of prenatal exposure to pesticides on early indicators of cognitive and motor skills, inhibitory control, emotion regulation, and memory that have been found to be important in the development of subsequent neurobehavioral and neurodevelopmental diseases. The overarching goal is to find earlier predictors of potential adverse neurologic outcomes in order to enable earlier interventions that could result in better outcome prognoses.
MethodsRecruitment of this prospective, longitudinal birth cohort began in July 2017 and was completed in June 2019 in Chom Thong and Fang, 2 farming districts in Chiang Mai Province in northern Thailand. Follow-up of the study participants is ongoing. During pregnancy, 7 questionnaires were administered. Time-resolved biospecimen samples were collected monthly (for urine) and during each trimester (for blood) during antenatal care visits. Medical records were abstracted. Infants were administered the NICU Network Neurobehavioral Scale (NNNS) test at 1 month of age. A total of 322 mother-child pairs completed the NNNS test. All children will be followed until 3 years of age and undergo a series of neurodevelopmental tests. We will complete several additional exposure related analyses.
ResultsA total of 1298 women were screened, and of those, 394 (30.35%) women were enrolled. The mean gestational age at enrollment was 9.9 weeks (SD 2.6). Differences in literacy were observed between Chom Thong and Fang participants. In Fang, about 54 of 105 (51.4%) participants reported being able to read in Thai compared to about 206 of 217 (94.9%) participants in Chom Thong. The percentages were comparable for reporting to be able to write in Thai.
ConclusionsThis longitudinal birth cohort study will inform risk assessment standards for pregnant women in Thailand and other countries. Building awareness of how insecticide exposure during specific windows of pregnancy affects the neurodevelopmental trajectories of children in developing countries is a specific need recognized by the World Health Organization.
International Registered Report Identifier (IRRID)DERR1-10.2196/31696 |
| first_indexed | 2024-03-12T12:57:29Z |
| format | Article |
| id | doaj.art-5cb308dff6534c6f971705d5e705ad91 |
| institution | Directory Open Access Journal |
| issn | 1929-0748 |
| language | English |
| last_indexed | 2024-03-12T12:57:29Z |
| publishDate | 2022-02-01 |
| publisher | JMIR Publications |
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| series | JMIR Research Protocols |
| spelling | doaj.art-5cb308dff6534c6f971705d5e705ad912023-08-28T20:43:35ZengJMIR PublicationsJMIR Research Protocols1929-07482022-02-01112e3169610.2196/31696Investigation of Prenatal Pesticide Exposure and Neurodevelopmental Deficits in Northern Thailand: Protocol for a Longitudinal Birth Cohort StudyBrittney O Baumerthttps://orcid.org/0000-0003-1220-8557Nancy Fiedlerhttps://orcid.org/0000-0001-8606-4352Tippawan Prapamontolhttps://orcid.org/0000-0001-7132-3235Panrapee Suttiwanhttps://orcid.org/0000-0002-3300-0280Warangkana Naksenhttps://orcid.org/0000-0002-3765-3131Parinya Panuwethttps://orcid.org/0000-0001-9519-1687Supattra Sittiwanghttps://orcid.org/0000-0003-0204-9484Chayada Dokjunyamhttps://orcid.org/0000-0003-4770-629XMelissa M Smarrhttps://orcid.org/0000-0002-4347-405XCarmen J Marsithttps://orcid.org/0000-0003-4566-150XP Barry Ryanhttps://orcid.org/0000-0001-5579-4256Wattasit Siriwonghttps://orcid.org/0000-0003-2780-1214Mark G Robsonhttps://orcid.org/0000-0001-5702-4781Dana Boyd Barrhttps://orcid.org/0000-0002-5566-2138 BackgroundPrenatal exposure to pesticides has been linked to adverse neurodevelopmental outcomes. Gaps exist in the current literature about the timing and magnitude of exposures that result in these adverse outcomes. ObjectiveThe Study of Asian Women and their Offspring’s Development and Environmental Exposures (SAWASDEE) cohort was established to investigate the impact of prenatal exposure to pesticides on early indicators of cognitive and motor skills, inhibitory control, emotion regulation, and memory that have been found to be important in the development of subsequent neurobehavioral and neurodevelopmental diseases. The overarching goal is to find earlier predictors of potential adverse neurologic outcomes in order to enable earlier interventions that could result in better outcome prognoses. MethodsRecruitment of this prospective, longitudinal birth cohort began in July 2017 and was completed in June 2019 in Chom Thong and Fang, 2 farming districts in Chiang Mai Province in northern Thailand. Follow-up of the study participants is ongoing. During pregnancy, 7 questionnaires were administered. Time-resolved biospecimen samples were collected monthly (for urine) and during each trimester (for blood) during antenatal care visits. Medical records were abstracted. Infants were administered the NICU Network Neurobehavioral Scale (NNNS) test at 1 month of age. A total of 322 mother-child pairs completed the NNNS test. All children will be followed until 3 years of age and undergo a series of neurodevelopmental tests. We will complete several additional exposure related analyses. ResultsA total of 1298 women were screened, and of those, 394 (30.35%) women were enrolled. The mean gestational age at enrollment was 9.9 weeks (SD 2.6). Differences in literacy were observed between Chom Thong and Fang participants. In Fang, about 54 of 105 (51.4%) participants reported being able to read in Thai compared to about 206 of 217 (94.9%) participants in Chom Thong. The percentages were comparable for reporting to be able to write in Thai. ConclusionsThis longitudinal birth cohort study will inform risk assessment standards for pregnant women in Thailand and other countries. Building awareness of how insecticide exposure during specific windows of pregnancy affects the neurodevelopmental trajectories of children in developing countries is a specific need recognized by the World Health Organization. International Registered Report Identifier (IRRID)DERR1-10.2196/31696https://www.researchprotocols.org/2022/2/e31696 |
| spellingShingle | Brittney O Baumert Nancy Fiedler Tippawan Prapamontol Panrapee Suttiwan Warangkana Naksen Parinya Panuwet Supattra Sittiwang Chayada Dokjunyam Melissa M Smarr Carmen J Marsit P Barry Ryan Wattasit Siriwong Mark G Robson Dana Boyd Barr Investigation of Prenatal Pesticide Exposure and Neurodevelopmental Deficits in Northern Thailand: Protocol for a Longitudinal Birth Cohort Study JMIR Research Protocols |
| title | Investigation of Prenatal Pesticide Exposure and Neurodevelopmental Deficits in Northern Thailand: Protocol for a Longitudinal Birth Cohort Study |
| title_full | Investigation of Prenatal Pesticide Exposure and Neurodevelopmental Deficits in Northern Thailand: Protocol for a Longitudinal Birth Cohort Study |
| title_fullStr | Investigation of Prenatal Pesticide Exposure and Neurodevelopmental Deficits in Northern Thailand: Protocol for a Longitudinal Birth Cohort Study |
| title_full_unstemmed | Investigation of Prenatal Pesticide Exposure and Neurodevelopmental Deficits in Northern Thailand: Protocol for a Longitudinal Birth Cohort Study |
| title_short | Investigation of Prenatal Pesticide Exposure and Neurodevelopmental Deficits in Northern Thailand: Protocol for a Longitudinal Birth Cohort Study |
| title_sort | investigation of prenatal pesticide exposure and neurodevelopmental deficits in northern thailand protocol for a longitudinal birth cohort study |
| url | https://www.researchprotocols.org/2022/2/e31696 |
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