To determine whether the Chinese heart-healthy diet (Sichuan cuisine version) (CHH diet-SC) was more expensive than the conventional Sichuan diet and explore the food groups and nutrients that mainly affected the cost of CHH diet-SC.

Cost analysis of 4-week intervention diets in the Sichuan center representing southwestern China in the CHH diet study.

A multicentre, parallel-group, single-blind, randomised feeding trial evaluating the efficacy of lowering blood pressure with the cuisine-based CHH diet.

Totally, fifty-three participants with hypertension aged 25–75 years in the Sichuan center were randomised into the control group (n 26) or the CHH diet-SC group (n 27).

The CHH diet-SC was more expensive than the control diet (¥27·87 ± 2·41 v. ¥25·18 ± 2·79 equals $3·90 ± 0·34 v. $3·52 ± 0·39, P < 0·001), and the incremental cost-effectiveness ratio for a 1-mm Hg systolic blood pressure reduction was ¥9·12 ($1·28). Intakes and the cost of seafood, dairy products, fruits, soybeans and nuts, whole grains and mixed beans were higher for the CHH diet-SC than for the control diet (P < 0·001). Intakes of vitamin B1, vitamin B6, vitamin C, Mg and phosphorus were positively correlated with the cost (P < 0·05).

The CHH diet-SC costs more than the conventional Sichuan diet, partly due to the high cost of specific food groups. Positive correlations between the intakes of vitamin B1, vitamin B6, vitamin C, Mg, phosphorus and the dietary cost could be a direction to adjust the composition within the food groups to reduce the cost of the CHH diet-SC.

According to the Healthy China 2030 Plan, children under 5 years is the main focus group to achieve universal health and sustainable development of China. To identify the major threats to children’s health, we analyzed and compared the burden of disease and risk factors among children under 5 years in China and other regions.

Indicators were gathered from the Global Burden of Disease 2019, which included the standardized rates and risk factors of mortality and DALYs of children under 5 years in China, Western Europe, North America and the world from 1990 to 2019. Paired t-test or Wilcoxon test were used to compare the rates based on gender. A joinpoint regression model was used to analyze the trend, and the Annual Percent of Change (APC) was calculated and statistically tested.

From 1990 to 2019, the all-cause mortality and DALYs of children under 5 years in China decreased from 1 153.81/100 000 to 160.39/100 000 and 104 426.40/100 000 to 16 479.01/100 000, respectively. The top 3 causes of both death and DALYs were neonatal preterm birth, congenital heart anomalies, lower respiratory infections. The top 3 risk factors of both death and DALYs were low birth weight, short gestation, child wasting. Unintentional injuries, behavioral and environmental risks posed greater threats to children compared with other regions. The rates of mortality and DALYs of the top 15 diseases and injuries in boys and girls showed a downward trend (p<0.05), and most of them were higher in boys than girls (p<0.05).

The burden of diseases among children under 5 years in China has decreased significantly from 1990 to 2019. Compared to other regions, it remains to strengthen the prevention and control of preterm birth, birth defects and unintentional injuries, and to adopt targeted gender-specific interventions. Promoting the parenting behavior and multiple social security may also affects children’s health status.