Uncertainty stress and self-rated health during the early stage of the COVID-19 outbreak.

Objectives: The COVID-19 crisis caused unparalleled uncertainty stress and health-related symptoms among Chinese residents. This study aimed to characterize stress status during the early stage of the pandemic and explore the inner mechanism between uncertainty stress and self-rated health.

Setting/participants: A cross-sectional design was conducted online from February 7 to 14, 2020.

Regional Internet Access and Mental Stress Among University Students: A Representative Nationwide Study of China.

Background: The Internet changed the lives of average citizens in the early part of the twenty-first century, and it has now become an essential part of daily life. Many studies reported that accessibility of Internet use is associated with mental health. However, previous studies examining this association were confined to local and community subpopulations and limited at the individual level, which increases the potential bias from the selection effect at a different level.

Association of Excessive Use with Mental Disorders: A Representative Nationwide Study in China.

Objectives: We examined associations between excessive use and mental disorders at the individual and contextual level.

Methods: We conducted a representative nationwide survey sampling process of 11,283 medical students from 30 universities in China. Mental health status was measured by the Chinese Health Questionnaire.

Predicting the histological invasiveness of pulmonary adenocarcinoma manifesting as persistent pure ground-glass nodules by ultra-high-resolution CT target scanning in the lateral or oblique body position.

Background: Ultra-high-resolution computed tomography (U-HRCT) has improved image quality for displaying the detailed characteristics of disease states and lung anatomy. The purpose of this study was to retrospectively examine whether U-HRCT target scanning in the lateral or oblique body position (protocol G scan) could predict histological invasiveness of pulmonary adenocarcinoma manifesting as pure ground-glass nodules (pGGNs).

Methods: From January 2015 to December 2016, 260 patients with 306 pathologically confirmed pGGNs who underwent preoperative protocol G scans were retrospectively reviewed and analyzed.

Quantifying magnetic resonance imaging features to classify placenta accreta spectrum (PAS) in high-risk gravid patients.

Objective: This study aimed to quantify the magnetic resonance imaging (MRI) features of placenta accreta spectrum (PAS) and to use MRI-based scores to classify them in high-risk gravid patients.

Materials And Methods: The clinical data and MRI features of 65 high-risk gravid patients diagnosed with PAS were retrospectively reviewed. The MRI features of PAS were analysed and compared using the chi-squared test, and the odds ratios (ORs) for significant risk factors for classification of PAS were identified via a multivariate logistic regression model.

Analysis of wedding appeals on cigarette packs in China.

Introduction: Exchanging or gifting cigarettes is a common practice in Chinese culture, often occurring during weddings to connote celebrations and happiness. We examined Chinese cigarette packs for wedding terminology and imagery to assess the extent to which packs are marketed for such occasions.

Methods: Cigarette packs were collected from Beijing, Guangzhou, Shanghai, Kunming and Chengdu in February 2017 using a systematic protocol designed to capture unique packs.

Real-world unassisted quit success and related contextual factors: a population-based study of Chinese male smokers.

Objectives: To examine the association of exposure to secondhand smoke (SHS) and tobacco advertising with unassisted smoking cessation among Chinese male smokers.

Methods: A questionnaire was administered to 6500 male adult smokers from six cities in China selected in a cross-sectional multistage sampling design. The survey collected self-reported demographic characteristics, smoking and cessation status, SHS exposure and tobacco advertising exposure, with 5782 valid questionnaires included in this study.

Violent Injuries Among College Students in China: An Exploration of Gender Mental Stress Model.

The purpose of this study was to explore the gender-specific mental stress model of violent injuries among Chinese college students. A cross-sectional, multistage sampling process was employed to recruit a total of 5025 college students from 22 universities in China. Survey respondents reported their exposure to violent injuries and noted individual and environmental factors that could relate to violent injuries.

Behavioral and psychosocial correlates of road traffic injuries: evidence from a nationwide study on Chinese undergraduates.

The purpose of this study was to investigate the prevalence and behavioral and psychosocial correlates of road traffic injuries (RTIs) among Chinese university students. A cross-sectional survey was conducted among fifty universities in China, using a multi-stage sampling methodology. The participants were asked to report their RTIs in the past year.

Diagnostic value of echocardiography on detecting the various types of anomalous origin of the left coronary artery from the pulmonary artery.

Background: To assess the diagnostic value of echocardiography in detecting the various types of anomalous origin of the left coronary artery from the pulmonary artery (ALCAPA).

Methods: A total of 30 patients with an established diagnosis of ALCAPA were retrospectively analyzed, and classified into infant- (n=20) and adult-type (n=10) groups according to the age of symptom manifestation and the mode of presentation. All patients underwent echocardiography examination.

The Impacts of Uncertainty Stress on Mental Disorders of Chinese College Students: Evidence From a Nationwide Study.

This study aimed to examine the relationships between the types of stress and students' mental health, to distinguish the effects of stressors on mental health problems, and to explore the important role of uncertainty stress on the development of mental disorders in a nationally representative sample of Chinese college students. A cross-sectional multistage study was conducted. Participants were 11,954 students, who were recruited from 50 Chinese universities located in 43 cities covering 23 provinces, autonomous regions, and municipalities across China.

Susceptibility to smoking and determinants among medical students: A representative nationwide study in China.

Introduction: The rationale behind why the majority of medical students are non-smokers, but some initiate smoking after becoming physicians is not fully understood in China. Exploring factors that may increase susceptibility to smoking initiation among medical students is an essential first step in assessing preventative actions.

Methods: Participants were 11954 students, who were identified through a multistage survey sampling process that included 50 universities in China.

Male smoking reduction behaviour in response to China's 2015 cigarette tax increase.

Objective: This study aims to evaluate Chinese male smokers' responses to China's 2015 6% ad valorem and RMB0.1 specific excise tax increase per cigarettes pack.

Methods: A male population-based cross-sectional survey with multistaged stratified sampling was employed to collect data in six cities in China.

Detection of pulmonary ground-glass opacity based on deep learning computer artificial intelligence.

Background: A deep learning computer artificial intelligence system is helpful for early identification of ground glass opacities (GGOs).

Methods: Images from the Lung Image Database Consortium and Image Database Resource Initiative (LIDC-IDRI) database were used in AlexNet and GoogLeNet to detect pulmonary nodules, and 221 GGO images provided by Xinhua Hospital were used in ResNet50 for detecting GGOs. We used computed tomography image radial reorganization to create the input image of the three-dimensional features, and used the extracted features for deep learning, network training, testing, and analysis.

Association between coronary artery atherosclerosis and plasma glucose levels assessed by dual-source computed tomography.

Background: To assess the association between coronary artery atherosclerosis (CAA) and plasma glucose parameters in a randomly selected cohort of asymptomatic, community-dwelling, Chinese adults by dual-source computed tomography (DSCT).

Methods: We randomly selected participants and classified them into three groups based on their plasma glucose levels: normal glucose regulation (NGR), pre-diabetes, and diabetes mellitus (DM). The participants underwent DSCT, and those identified with CAA were divided into four groups according to the severity of their coronary artery stenosis.

Are overweight people more susceptible to anxiety?

Objectives: This study aimed to investigate anxiety status and its relationship with body mass index (BMI) among empty nesters in China, so as to improve their quality of life and provide direction for further research.

Methods: A cross-sectional survey was conducted among 4901 empty nesters in Shanxi, China. Anxiety, weight, height, depression, socio-demographic variables, attention to daily nutritional health, social activities, and self-care ability were evaluated in the study.

Individual and regional factors affecting stress and problem alcohol use: A representative nationwide study of China.

Objectives: The objective of this study was to examine the association between individual and environmental stressors and problem alcohol use among Chinese university students.

Methods: Participants were 11,942 students, who were identified through a multistage survey sampling process that included 50 universities. Individual information, including feelings of stress and perceptions of problem alcohol use, was obtained by self report.

Regional contextual determinants of internet addiction among college students: a representative nationwide study of China.

Background: Many studies have reported factors associated with internet addiction (IA) but little attention has been paid to contextual influences. The present study examined the association between regional contextual determinants of IA among college students in China.

Methods: Participants comprised 6929 college students, who were identified through a multistage survey sampling process conducted in 28 university/colleges in China.

Individual and regional association between socioeconomic status and uncertainty stress, and life stress: a representative nationwide study of China.

Background: Many studies have examined the association between socioeconomic status (SES) and mental stress. Uncertainty stress is a prominent aspect of mental stress. Yet no research has ever empirically analyzed the impact of SES on uncertainty stress.

Assessment of coronary artery by prospective ECG-triggered 256 multi-slice CT on children with congenital heart disease.

This study aims to investigate the imaging quality and radiation dose of prospective ECG-triggered 256 multi-slice computer tomography (MSCT) in accessing the coronary artery (CA) in children. Coronary arteries of 149 children were evaluated using prospective ECG-triggered 256 MSCT with the same system settings. A four-point scoring system was applied to study the capability of MSCT in detecting CA in these patients.

Contextual influences affecting patterns of overweight and obesity among university students: a 50 universities population-based study in China.

Background: Many studies have examined childhood and adolescent obesity, but few have examined young adults and the effect of their home and current living environments on prevalence rates. The present study explores contextual factors affecting overweight and obesity among university students in China and, in particular, focuses on how the SES-obesity relationship varies across different geographical contexts.

Methods: Participants were 11,673 students, who were identified through a multistage survey sampling process conducted in 50 universities.

Prevalence and regional correlates of road traffic injury among Chinese urban residents: A 21-city population-based study.

Objective: This study estimated the prevalence of road traffic injury among Chinese urban residents and examined individual and regional-level correlates.

Method: A cross-sectional multistage process was used to sample residents from 21 selected cities in China. Survey respondents reported their history of road traffic injury in the past 12 months through a community survey.