INTRODUCTION Electronic cigarettes are increasingly popular worldwide, especially among youth. There is growing evidence of the negative health consequences of vaping. Our objective was to assess university students' knowledge and attitudes regarding electronic cigarettes (e-cigarettes), their use, as well as the associated influencing factors for their use. METHODS The study involved an online cross-sectional survey conducted between November 2019 and March 2020 in a university in Hangzhou, China. A total of 563 students completed the questionnaire. Descriptive statistics were used to assess characteristics, knowledge, and attitudes; t-tests, χ 2 -tests and logistic regression models were used to identify factors associated with ever e-cigarette use. RESULTS In all, 59.9% of respondents were female and the average age was 20.38 years (SD=1.32). Only 42.6% of the respondents thought that e-cigarettes contain nicotine, 31.1% thought e-cigarettes are tobacco products, and 8.2% of the students reported being ever e-cigarettes users. In regard to attitude, the average score of the students in the Safety dimension was 3.34 (SD=0.64), followed by the Restriction dimension (Mean=2.66, SD=0.83). Correlates of ever use included regions, friends' and roommates' ever e-cigarette use, and higher attitude score in the Supervision dimension. CONCLUSIONS The university students' level of knowledge regarding e-cigarettes was not high, and their attitudes regarding e-cigarettes were not that supportive. Students' ever use of e-cigarettes at a university in Hangzhou was higher than for university students in other cities in China, but lower than for those in foreign countries.

The Rashba spin splitting of polar group III–VI chalcogenides XABY (A, B = Ga, In; X ≠ Y = S, Se, Te) monolayer is investigated based on the density functional theory.

Background. Extensive studies have been conducted to evaluate the pain relief effect of traditional Chinese medicine (TCM) interventions on patients with low back pain, including in China. However, there is a dearth in the literature documenting the diverse goals of TCM interventions, let alone the overall effect of such interventions. In this study, the goal attainment scaling (GAS) method was adopted to evaluate individualised TCM interventions on chronic low back pain. Methods. A pre-post intervention study was conducted on patients with chronic low back pain who received individualised TCM interventions in community health services. The study was undertaken in three community health centres in Hangzhou of China. A total of 165 eligible patients were invited, and 150 participated in the study, including 136 who completed both pre- and postintervention surveys. Each participant was asked to identify three to five intended goals from a pool of 26 outcome indicators and their corresponding expectations of these goals prior to the TCM interventions. Their conditions were rated against the selected indicators on a self-report five-point Likert scale before and after the TCM interventions, respectively. Gaps between the actual conditions and the expected goals were summed up for each participant and converted into a standardised GAS score, with a higher score indicating higher achievements, and 50 indicting patient expectations were met. Linear regression models were established to determine the factors associated with the pre-post GAS changes after adjustment for variations in other variables. Results. On average, an increase of 14.99 (SD = 9.81) in the GAS scores was achieved. This resulted in a mean GAS score of 48.33 (SD = 9.74) after the TCM interventions, falling slightly short (<2) of patient expectations. The multivariate linear regression models revealed that local residents, the retired, and those who perceived lower professional competency of their attending doctors had a smaller increase in the GAS scores after adjustment for variations in other variables. Conclusion. The individualised TCM interventions can help patients with low back pain to achieve their expected goals as measured by the GAS. Further studies are needed to better understand how patients set up their goals and the professional competency requirements to meet patient expectations.

ObjectiveChina is attempting to establish a voluntary contracting system in primary care. This study aimed to determine the degree of consumer satisfaction with the entitlements of contract arrangements and its associated factors.MethodsA stratified cluster sampling strategy was adopted to recruit study participants from three administrative districts of Hangzhou municipality, each containing six residential communities. In each community, 50 households were recruited. A questionnaire was administered through face-to-face interviews with members of the households who signed a contract with community health centers, to collect data regarding their sociodemographic characteristics, health conditions, and knowledge of and attitudes toward the contract entitlements. Consumer satisfaction was measured using six items rated on a five-point Likert scale ranging from “1=very dissatisfied” to “5=very satisfied” and a summed score was calculated. A mixed linear regression model was established to identify individual predictors of consumer satisfaction after adjustment of the random (intercept) effect of household clusters.ResultsOverall, the respondents reported low levels of awareness and understanding of the contract entitlements, with an average knowledge score of 8.21 (SD = 3.74) out of a maximum possible of 19. The respondents had relatively lower levels of satisfaction (satisfied or very satisfied) with their prioritized entitlements (51.5%) and hospitals at home and telemedicine services (31.3%), compared with the contract and insurance policies (85.5%) and medical services provided (87.0%). Female gender, older age, chronic conditions, and perceived better health were associated with higher levels of satisfaction, while poor awareness and knowledge were associated with lower levels of satisfaction.ConclusionThe study participants perceived limited benefits from the contract arrangements in primary care, which may jeopardize the policy purpose of the arrangements to encourage patients to use primary care as the first contact point in accessing health care services. It is evident that consumer satisfaction with the contract entitlements varies by healthcare needs. Lower levels of satisfaction are associated with poor awareness and knowledge of the entitlements.

Objectives:The present study aimed to explore the social support among community-dwelling older adults with frailty and pre-frailty and to ascertain associated factors.MethodsThe frailty status of the participant was assessed via the Chinese FRAIL Scale. The dependent variable, level of social support, was evaluated using the Social Support Rating Scale (range: 12–66). This study explored the influencing factors from three aspects containing sociodemographic characteristics, family environment, and community environment. Independent-sample t-test, Analysis of Variance, and multiple linear regression analyses were conducted to examine determinants of social support.ResultsThere were significant differences in overall social support between non-frail, pre-frail, and frail participants [38.01 (SD = 6.48) vs. 33.62 (SD = 6.25) vs. 30.50 (SD = 6.68), F = 62.157, p &lt; 0.001]. Older adults with frailty and pre-frailty who were single would have lower levels of overall social support. In the pre-frail group, living alone was associated with lower overall social support. In contrast, the relationship with children and the availability of recreational activities were associated factors for the frail group.ConclusionsThe level of social support among frail and pre-frail community-dwelling older adults was lower than the robust older adults and influenced by different factors according to the frailty category, which suggests taking targeted measures for social support improvement.