We aimed to examine the association between dietary Se intake and CVD risk in Chinese adults.

This prospective cohort study included adults above 20 years old in the China Health and Nutrition Survey (CHNS), and they were followed up from 1997 to 2015 (n 16 030). Dietary data were retrieved from CHNS, and a 3-d, 24-h recall of food intake was used to assess the cumulative average intake of dietary Se, which was divided into quartiles. The Cox proportional hazards model was adopted to analyse the association between dietary Se intake and incident CVD risk.

CHNS (1991, 1993, 1997, 2000, 2004, 2006, 2009, 2011 and 2015)

A total of 663 respondents developed CVD after being followed up for a mean of 9·9 years (median 9 years). The incidence of CVD was 4·3, 3·7, 4·6 and 4·0 per 1000 person-years across the quartiles of cumulative Se intake. After adjusting all potential factors, no significant associations were found between cumulative Se intake and CVD risk. No interactions were found between Se intake and income, urbanisation, sex, region, weight, hypertension and CVD risk.

We found no association between dietary Se and CVD.

Preterm birth is a global health problem and associated with increased risk of long-term developmental impairments, but findings on the adverse outcomes of prematurity have been inconsistent.

Data were obtained from the baseline session of the ongoing longitudinal Adolescent Brain and Cognitive Development (ABCD) Study. We identified 1706 preterm children and 1865 matched individuals as Control group and compared brain structure (MRI data), cognitive function and mental health symptoms.

Results showed that preterm children had higher psychopathological risk and lower cognitive function scores compared to controls. Structural MRI analysis indicated that preterm children had higher cortical thickness in the medial orbitofrontal cortex, parahippocampal gyrus, temporal and occipital gyrus; smaller volumes in the temporal and parietal gyrus, cerebellum, insula and thalamus; and smaller fiber tract volumes in the fornix and parahippocampal-cingulum bundle. Partial correlation analyses showed that gestational age and birth weight were associated with ADHD symptoms, picvocab, flanker, reading, fluid cognition composite, crystallized cognition composite and total cognition composite scores, and measures of brain structure in regions involved with emotional regulation, attention and cognition.

These findings suggest a complex interplay between psychopathological risk and cognitive deficits in preterm children that is associated with changes in regional brain volumes, cortical thickness, and structural connectivity among cortical and limbic brain regions critical for cognition and emotional well-being.

Compared with traditional START Triage Method, the Sacco Triage Method is a new way to access death risk in disaster scenes. However, due to the difficulties in disaster medical research, there is still no evidence to prove which one is more effective.

To assess and compare the value of START Triage Method and Sacco Triage Method in the death risk assessment of transport and the one-month death risk assessment of the earthquake mass trauma patients.

A retrospective analysis was conducted on 1,612 patients who were transferred to the West China Hospital by assigning to different triage levels by Sacco Triage Method and START Triage Method respectively. Both of the triage methods were evaluated based on death cases on either during transport or in the emergency department, using the area under the receiver-operator curve.

For death during the transport and in the emergency department, the receiver-operator curve of two groups reflected as 0.721 and 0.649. For death in a consequence, the receiver-operator curve of the two groups was revealed as 0.667 and 0.519.

As an accurate triage method, the Sacco Triage Method may be used in a mass casualty incident. It is a more effective way than the START Triage Method for the evaluation of death risk assessment of the mass trauma patients.

First aid in a short time is the key to saving lives. As undergraduates step into society, they should have enough ability to save others. As a result, first aid knowledge and training are essential for them.

To investigate the cognition level of the first aid knowledge among undergraduates, and to improve the training for undergraduates.

A questionnaire was designed for this study. It includes the basic information of the test subjects, attitude towards first aid, level of first aid knowledge, etc. The subjects of the questionnaire were mainly undergraduates in Sichuan province.

There were 302 valid questionnaires. The percent correct of the first aid basic knowledge quiz was only 47.62%. Using Chi-Square tests to analyze, medical education can make a significant difference in the level of first aid knowledge. (Chi-Square=251.004, P<0.01) Additionally, 78.81% of undergraduates thought it was significant to learn and master first aid knowledge, and the most common way to learn first aid knowledge was through university (81.46%).

Universities should strengthen the training for undergraduates to improve their first aid skills. This is a feasible approach to promote a public level of first aid knowledge.