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Male:Female Birth Ratios and Phthalate Levels

NCT00903318 · Status: COMPLETED · Type: OBSERVATIONAL · Enrollment: 300

Last updated 2017-02-13

No results posted yet for this study

Summary

Objective 1: To assess environmental exposure to chemicals/toxins, including phthalates, among rural and urban Mexican American men and women (n=300), aged 18 to 40, in urban Baytown, TX and rural Rio Grande Valley (Hidalgo County) communities along the Texas-Mexico border region via survey.

Objective 2: To determine generational sex ratio trends in urban Baytown, TX and along the rural Rio Grande Valley (Hidalgo County) utilizing vital statistics data from the Texas Department of Health and the Center for Health Statistics.

Objective 3: To measure urinary phthalate levels and self-reported phthalate exposure in Mexican American men and women from urban Baytown, Texas and rural communities along the lower Rio Grande Valley (Hidalgo County) on theTexas-Mexico border. To conduct an optional procedure, chromosomal sex determination, among a subgroup of 50 persons (13 men + 12 women in each community) from participants who complete the survey in Objective 1.

Conditions

  • Endocrine Diseases

Interventions

BEHAVIORAL

Questionnaire

Questionnaire about family's characteristics taking about 30-35 minutes to complete.

Sponsors & Collaborators

  • National Institute on Minority Health and Health Disparities (NIMHD)

    collaborator NIH

  • M.D. Anderson Cancer Center

    lead OTHER

Principal Investigators

  • Richard A. Hajek, PHD, MS, BA · M.D. Anderson Cancer Center

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2009-05-15
Primary Completion
2017-02-09
Completion
2017-02-09

Countries

  • United States

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT00903318 on ClinicalTrials.gov