The relationship between chronic pain, prehypertension, and hypertension. A population-based cross-sectional survey in Al-Kharj, Saudi Arabia.

Background: Chronic pain and hypertension are highly prevalent in both developing and developed countries. Although they may appear to be two separate phenomena, several studies in developed countries have found them associated at the population level. Studies in developing countries are scarce and association between pain with prehypertension are rarely explored. The objective of this study was to explore the potential association between prehypertension, hypertension, and chronic pain in a Saudi population.Methods: A cross-sectional general population-based study was conducted on a random sample of employees and university students over a period of 6 months from January 2016 to June 2016 in Al Kharj, Saudi Arabia. A total of 1200 general population adults (aged 18 years and above) were invited to participate in the study.Results: With a response rate of 85.9%, 1031 individuals were included in the final analysis. Among the general population of Al-Kharj, statistically significant association was found between age and chronic pain [Odds ratio (OR) = 1.764 [95% C.I. = 1.391-1.927], P < 0.0001] and between hypertension and chronic pain [(OR) = 1.039 [95% C.I. = 1.018-1.060], P < 0.0001], respectively. The association between prehypertension and chronic pain was not statistically significant [(OR) = 1.211 [95% C.I. = 0.879-1.668, P = 0.243].Conclusion: Results of this survey suggests a statistically significant relationship between hypertension (but not prehypertension) and chronic pain. The temporality of the relationship between hypertension and chronic needs to be explored in future longitudinal studies.