Background: This study aimed to specify the prevalence of sedentary behavior and depression and investigate the relationship between sedentary behavior and depression among college students majoring in design. Methods: A total of 480 undergraduate and postgraduate students majoring in design were randomly enrolled from a university in Nanjing for a questionnaire that included sociodemographic data, physical health, sedentary behavior and depression. Results: Participants reported that they spent 14.93 (SD = 1.76) hours on sedentary behavior per day and most of the time occurred outside the classroom. There were 161 (39.8%) students who reported depression, with a statistical difference across grades. After adjusting for sociodemographic attributes, physical health and physical activity, binary logistic regression analysis showed that the total sedentary time and time spent on school assignments on weekends were significantly associated with depression. Conclusions: To reduce the risk of depression, students majoring in design should be encouraged to change sedentary behaviors to physical activities in their study and life, such as using non-seating postures to do school assignments, making time for more physical activities and reducing assignments on weekends.
PurposeThe conclusions of studies on the factors correlated with the perceived usefulness of online reviews are inconsistent due to differences in research perspectives, research objects, research methods and data types. This study conducted a meta-analysis to verify a proposed model of perceived usefulness to obtain general conclusions.Design/methodology/approachA meta-analysis was conducted to study the factors correlated with the perceived usefulness of online reviews based on 51 studies.FindingsThe results indicate that, with the exception of negative reviews, the order of relevance for the perceived usefulness of online reviews is as follows: the trust tendency of review readers, review replies, review depth, review pictures, reviewer trustworthiness, positive reviews, reviewer expertise, review time and reviewer information disclosure. Perceived usefulness was significantly positively correlated with purchase intention. Review time, positive reviews and negative reviews were also more significantly correlated with perceived usefulness for search products than for experiential products. Review depth, reviewer trustworthiness, reviewer expertise and purchase intention had greater positive correlations with perceived usefulness for experiential products than for search products.Originality/valueThis study proposes an extended information adoption model based on argument quality and source credibility. The model includes personal factors such as the trust tendency of review readers, constructs a theoretical model of the factors correlated with the perceived usefulness of online reviews and considers the moderating effects of product type.
Background
This study aims to test the efficacy of single‐photon emission computed tomography (SPECT)‐defined active bone marrow‐sparing (ABMS) volumetric‐modulated arc therapy (VMAT) in reducing grade 3+ acute hematologic toxicity (HT) in locally advanced cervical cancer patients treated with chemoradiotherapy.
Methods
This was a prospective, single‐center, open label, randomized clinical trial that enrolled locally advanced cervical cancer patients. Participants were randomized to the 99mTc sulfur colloid SPECT‐defined ABMS VMAT (ABMS group) or control group, who received weekly cisplatin concurrently with VMAT followed by high–dose‐rate intracavitary brachytherapy. The ABMS group additionally received SPECT‐defined ABM dose constraints. The primary end point was the incidence of grade 3+ acute HT.
Results
A total of 192 Federation of Gynaecology and Obstetrics stage IB‐IIIB patients were randomly treated (96 each in the ABMS control groups). The median follow‐up was 24.0 months. The incidence of grade 3+ acute HT in the ABMS group was significantly lower than that in the control group (32.3% vs. 53.1%, p < .01). The number of patients completing five cycles of cisplatin was 88.5% in the ABMS group and 75% in the control group, and the difference was significant (p = .02). There were no differences in planning target value coverage, organs at risk dosimetric parameters, 2‐year progression‐free survival, or 2‐year overall survival between the two groups. Patients in the control group had nonsignificantly worse 2‐year distant metastasis than patients in the ABMS group (17.8% vs. 11.1%, p = .19).
Conclusions
ABMS VMAT significantly reduced grade 3+ acute HT and improved chemotherapy delivery compared with the control treatment. We found weak evidence of the effect of ABMS VMAT on distant metastasis.
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