Research Article
Associations Between Direct Contact with the Oil and Worsened Health Indicators After Deepwater Horizon Oil Spill: Results From Gulf States Population Survey
Background Oil spills are known to affect human health through exposure to inherent hazardous chemicals. The aim of the study was to examine the associations between direct contact with the oil (DCO) and health indicators among the adult residents in the 25 coastal counties or parishes most directly affected by the Deepwater Horizon oil spill (DHOS) in the Gulf of Mexico.Methods Data were based on the Gulf States Population Survey (GSPS). The GSPS collected survey data from a random sample of households, with the majority of the interviews conducted in the 25 coastal counties or parishes that were most directly affected by the spill. After identifying the confounding variables, associations of DCO with poor quality of life (QoL), poor self-rated health (SRH), psychiatric disorders, asthma, and cardiovascular disease among the adult residents after DHOS were analyzed using logistic regressions.Results The mean age of a total of 5,167 adult residents at the time of questionnaire completion was 53.93 (SD=16.29), ranging from 18 to 95 years. Controlling for confounding variables, DCO was associated with higher odds of poor mental QoL (adjusted odds ratio [aOR]: 1.284; 95% confidence interval [CI]: 1.045-1.578; p=.018), poor SRMH (aOR=1.278; 95%CI: 1.021-1.601; p=.033), anxiety (aOR=1.680; 95%CI: 1.395-2.024; p<.001), depression (aOR=1.182; 95%CI: 0.977-1.430; p=.086), and suicidality (aOR=1.920; 95%CI: 1.411-2.614; p<.001) after DHOS.Conclusions In conclusion, the prevalence of co-occurring poor SRHs, co-existing poor QoL, and concurrent psychiatric disorders was high in adult residents after DHOS. Similarly, DCO was associated with poor mental QoL, poor SRMH, and psychiatric disorders. The empirical findings of this research present managerial implications in the field of environmental health.
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