<![CDATA[ABSTRACT Background: Noise is one of the most common physical hazards in the workplace, particularly in the oil and gas industry. Exposure to excessive noise may cause not only hearing impairment but also non-auditory effects, including increased blood pressure. This study aimed to analyze the relationship between noise intensity and the duration of noise exposure with increased blood pressure among employees of an oil and gas company in Jambi. Methods: This quantitative study used a cross-sectional survey design. The study was conducted in the Central Processing Station (CPS) area of an oil and gas company in Jambi. The study population consisted of 60 employees, all of whom were included using a total sampling technique. Data were collected through questionnaires, blood pressure measurements conducted before and after work, and measurements of workplace noise intensity. Data were analyzed using univariate and bivariate analyses with the Chi-square test at a 95% confidence level. Results: Of the 60 respondents, 31 (51.7%) experienced an increase in blood pressure after work. A total of 32 respondents (53.3%) were exposed to noise intensity above the permissible exposure limit of 85 dBA, while 35 respondents (58.3%) had a duration of noise exposure exceeding 8 hours per day. Statistical analysis showed a significant relationship between noise intensity and increased blood pressure (p = 0.002). However, there was no significant relationship between the duration of noise exposure and increased blood pressure (p = 0.176). Conclusion: Noise intensity was significantly associated with increased blood pressure among employees, whereas the duration of noise exposure was not significantly associated with increased blood pressure. Strengthening workplace noise control through engineering controls, administrative controls, appropriate use of hearing protection devices, and continuous implementation of hearing conservation programs is recommended.]]>
