This study investigated the relationship between obesity and hypertension from a public health perspective in a small remote island of Okinawa where obesity is prevalent. A cross-sectional study was conducted in 456 residents aged ≥18 years in Yonaguni island who underwent an annual health check-up and the Yonaguni dietary survey in 2022. Each participant responded to our original questionnaire and provided further dietary survey data via the Yonaguni municipal government. The odds ratio for hypertension was calculated in the obese group, using a logistic regression model with the non-obese group serving as the reference. Hypertension was defined as a systolic blood pressure ≥140 mmHg, a diastolic blood pressure ≥90 mmHg measured on an automated sphygmomanometer, and/or taking anti-hypertensive agents, while obesity was defined as a body mass index ≥25 kg/m². The proportion of hypertension associated with obesity among all hypertensive subjects was calculated. The prevalence of obesity and hypertension was 54.3% and 49.0% in the 208 male subjects and 32.3% and 43.6% in the 248 female subjects, respectively. The odds ratio for hypertension in the obese group was 3.73 (95% confidence interval, 1.93–7.20) for men and 4.13 (2.06-8.29) for women after adjusting for age, alcohol drinking habit, behavior for lowering salt intake, and smoking habit. Hypertension in 49.5% (95% confidence interval, 29.4%-63.9%) of males and 37.9% (22.6%–50.2%) of females was associated with obesity in this island. Some areas of Japan could be urgently required to address obesity for preventing cardiovascular disease.

这项研究从公共卫生的角度调查了肥胖盛行的冲绳偏远小岛的肥胖与高血压之间的关系。对与那国岛 456 名年龄≥18 岁的居民进行了一项横断面研究，这些居民在 2022 年接受了年度健康检查和与那国岛饮食调查。每位参与者都回答了我们的原始调查问卷，并通过与那国岛市政府提供了进一步的饮食调查数据政府。使用逻辑回归模型计算肥胖组的高血压比值比，并以非肥胖组作为参考。高血压定义为自动血压计测量的收缩压≥140 mmHg、舒张压≥90 mmHg和/或服用抗高血压药物，而肥胖定义为体重指数≥25 kg/m ²。计算所有高血压受试者中与肥胖相关的高血压比例。208 名男性受试者中肥胖和高血压患病率分别为 54.3% 和 49.0%，248 名女性受试者中肥胖和高血压患病率分别为 32.3% 和 43.6%。调整年龄、饮酒习惯、降低盐摄入量的行为和吸烟习惯后，肥胖组中男性高血压的比值比为 3.73（95% 置信区间，1.93-7.20），女性为 4.13（2.06-8.29） 。在这个岛上，49.5%（95%置信区间，29.4%-63.9%）的男性和37.9%（22.6%–50.2%）的女性的高血压与肥胖有关。日本的一些地区可能迫切需要解决肥胖问题，以预防心血管疾病。