A Weighted Goal Programming Model for the DASH Diet Problem: Comparison with the Linear Programming DASH Diet Model

A Linear Programming DASH diet model for persons with hypertension has previously been formulated and daily minimum cost diet plans that satisfy the DASH diets’ tolerable intake level of the nutrients for 1500 mg a day Sodium level and different daily calorie levels were obtained using sample foods from the DASH diet eating plan chart. But the limitation in the use of linear programming model in selecting diet plans to meet specific nutritional requirements which normally results in the oversupply of certain nutrients was evident in the linear programming DASH diet plan obtained as the nutrient level of the diet plans obtained had wide deviations of from the DASH diets’ tolerable upper and lower intake level for the given calorie and sodium levels. Hence the need for a model that gives diet plans with minimized nutrients’ level deviations from the DASH diets’ tolerable intake level for different daily calorie and sodium level at desired cost. A weighted Goal Programming DASH diet model that minimizes the daily cost of the DASH eating plan as well as deviations of the diets’ nutrients content from the DASH diet’s tolerable intake levels is hereby presented in this work. The formulated weighted goal programming DASH diet model is further illustrated using chosen sample foods from the DASH food chart as used in the work on the linear programming DASH diet model for a 1500 mg sodium level and 2000 calories a day diet plan as well as for 1800, 2200, 2400, 2600, 2800 and 3000 daily calorie levels. A comparison of the DASH nutrients’ composition of the weighted Goal Programming DASH diet plans and those of the linear programming DASH diet plans were carried out at this sodium level and the different daily calorie levels. It was evident from the results of the comparison that the weighted goal programming DASH diet plans has minimized deviations from the DASH diet’s tolerable intake levels than those of the linear programming DASH diet plans.

DASH饮食模式与多囊卵巢综合征患者睡眠质量关系的多中心研究

目的探究DASH饮食模式与多囊卵巢综合征(PCOS)患者睡眠质量的关系。方法选取2021年3月至6月崇左市的4所二级甲等医院及1所三级甲等医院收治的200例PCOS患者作为研究对象。收集患者的基线资料,包括一般情况、睡眠质量情况、膳食情况等。通过二元Logistic回归分析和分层多元线性回归分析探讨DASH饮食模式与PCOS患者睡眠质量的关系。结果共发放200份问卷,有效回收187份,回收率为93.5%。将187例患者分成睡眠质量优组(n=104)和睡眠质量劣组(n=83)。两组在体重指数、家庭人均月收入、家庭/社会压力大、过度焦虑、睡前电子产品使用时长、DASH评分等方面比较,差异具有统计学意义(P<0.05)。二元Logistic回归分析结果显示,DASH评分(OR=0.377,95%CI:0.264~0.538)与PCOS患者睡眠质量正相关。分层多元回归分析中,控制协变量,最终模型仅增加了DASH评分后,△R^(2)=0.252,△F=123.568,差异具有统计学意义(P<0.001)。结论DASH饮食模式与PCOS患者睡眠质量存在线性相关,积极推广健康教育,普及DASH膳食模式,对改善PCOS患者睡眠质量具有重要意义。