Document Type

Capstone Experience

Graduation Date

12-2024

Degree Name

Master of Public Health

Department

Epidemiology

First Committee Member

Dr. Abraham Mengist

Second Committee Member

Dr. Jesse Bell

Third Committee Member

Summer Woolsey

Abstract

Background: Nitrate contamination in drinking water is a public health concern, particularly in agricultural regions. Healthcare professionals often address water quality issues but may lack sufficient knowledge regarding the health effects of nitrate contamination. This study evaluates whether Nebraska healthcare professionals' knowledge and attitudes about nitrate contamination predict their behaviors in addressing this issue.

Methods: A survey was administered to healthcare professionals across Nebraska to assess their knowledge, attitudes, and behaviors regarding nitrate contamination in drinking water. A total of 462 respondents participated. Generalized linear regression analysis was employed to assess the impact of knowledge and attitudes regarding nitrate contamination in drinking water on individuals' practices of sharing information about its health effects with their patients.

Results: The average practice of sharing information about nitrate contamination in drinking water was higher among individuals who reported being more knowledgeable about nitrate health effects compared to those who were less knowledgeable (χ² = 109.40, p < .0001). Additionally, individuals who were more confident in advising patients on nitrate health effects also shared information more frequently than those with lower confidence levels (χ² = 134.66, p < .0001). Knowledge about nitrate contamination in drinking water was not associated with increased proactive behaviors (β = 0.12, p = 0.1846). Similarly, healthcare professionals' attitudes regarding nitrate contamination in drinking water were not associated with practices of sharing information about its health effects with patients (β = -0.03, p = 0.5596). However, the interaction between knowledge and attitudes significantly influenced behaviors (β = 0.08, p = 0.02).

Conclusion: The study highlights the importance of both knowledge and attitudes in shaping healthcare professionals' proactive behaviors related to nitrate contamination and their practices in sharing information with patients. The findings demonstrate that a solid understanding of nitrate-related health risks, combined with a positive attitude, significantly increases healthcare professionals' likelihood of engaging in practices such as advising patients and utilizing resources. These results emphasize the necessity for educational interventions targeting both knowledge gaps and attitude development to improve how healthcare professionals share critical information about nitrate contamination and its health effects.

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