A study of self-precaution against the background of the COVID-19 pandemic from the perspective of risk perception attitude theory and social support.

BACKGROUND: In this research, the factors that influence the self-precautionary behavior during the pandemic are explored with the combination of social support and a risk perception attitude framework. METHODS: An online survey was conducted among 429 members to collect information on demographic data, social support, perceptions of outbreak risk, health self-efficacy, and self-precautionary behaviors with the guide of the Social Support Scale, the COVID-19 Risk Perception Scale, the Health Self-Efficacy Scale and the Self-precautionary Behavior Scale. RESULTS: The research shows that among the three dimensions of social support, both objective support and support utilization negatively predict risk perception, while subjective support positively predicts health self-efficacy; health self-efficacy and risk perception significantly predict self-precautionary behavior; the relationship between risk perception and self-precautionary behavior is significantly moderated by health self-efficacy. CONCLUSIONS: The combined influence of social capital and risk perception attitudinal frameworks on self-precautionary behavior is highlighted in this study, with the relationship between the public's risk perception, health self-efficacy, and self-precautionary behavior intentions examined against the background of coronavirus disease 2019 (COVID-19). These findings contribute to understanding the impact of social capital factors on risk perception and health self-efficacy, which provides insight into the current status and influencing factors of the public's precautionary behavior and facilitates early intervention during a pandemic.

Expression and distribution of dendritic cells in nasal polyps.

The aim of the present study was to investigate the expression, distribution and function of dendritic cells (DCs) and to study their role in nasal polyps. The study involved 55 participants, 45 of whom had nasal polyps and were the study group and 10 who had normal inferior turbinates and were the control group. Immunohistochemical staining was used to visualize the expression and distribution of the S-100 protein. A double immunostaining method was used to visualize the CD1a and CD40 expression and the images were analyzed with Axioplan 2 microscopy. The expression level of the S-100 protein in the nasal polyps was higher than that in the normal inferior turbinates with a significant difference (P<0.01). The distribution area, number and density of the double stained cells in the nasal polyps were all greater than in the normal inferior turbinates (P<0.01). The S-100 protein and double stained cells were mainly located in the lamina propria below the mucous membrane. The present study demonstrates that DCs are involved in the pathogenesis of nasal polyps and the presence of CD40-positive DCs suggests that this was related to the reciprocal interaction between the DCs and T lymphocytes.

[Window partial laryngectomy for the treatment of stage T2-3 glottic laryngeal carcinoma].

OBJECTIVE: To investigate the operative effect and value of window partial laryngectomy for the treatment of stage T2-3 glottic laryngeal carcinoma. METHODS: From Oct. 2000 to Dec. 2006, the stage T2-3 glottic laryngeal carcinoma of 48 patients by properly selected were performed with window partial laryngectomy and laryngeal reconstruction. Twenty nine males and 19 females were included. Their ages ranged from 43 to 78 years (median 57.0 years). Before operation and in the 6 months after operation, these targets including auditory mental evaluation of hoarse degree, active degree and symmetry of vocal cord, glottic width in the time of quiet breathing, glottic closing degree in the time of phonating, respiratory function and swallowing function were surveyed. In addition, the things of recurrence and metastasis of tumors together with survival time of patients were following investigated. RESULTS: All patients were decannulated successfully and incisions were healed smoothly. No operative complication occurred. Except active degree of vocal cord (P = 0.343), there were respectively significant difference between two group targets of auditory mental evaluation of hoarse degree (all P <0.01), symmetry of vocal cord (P = 0.000), glottic width in the time of quiet breathing (P = 0. 001), glottic closing degree in the time of phonating (P = 0.001) and respiratory function (P=0.001) those were investigated before operation and after operation. The swallowing function wasn't influenced (P= 0.310). There were laryngostenosis in 1 case, recurrence in 1 case (2.1%), cervical lymph node metastasis in 1 case and hepatic metastasis in 1 case. Two cases died. 3-year and 5-year overall survival rate were respectively 96.9% and 88.9%. CONCLUSIONS: The study showed that window partial laryngectomy was successful for treating stage T2-3 glottic laryngeal carcinoma by properly selected. This operation was effective for reducing surgical invasion and beneficial to resume respiratory and vocal function.

[Diagnosis and treatment of serious pediatric airway obstruction].

OBJECTIVE: To investigate the diagnosis and treatment of serious pediatric airway obstruction. METHODS: Seventy three pediatric cases with serious airway obstruction, admitted to Shantou hospital from 1995 to 2005, were analyzed retrospectively. RESULTS: Among the 73 cases, 28 cases (38.4%) with inflammatory disease and 33 cases (45.2%) with foreign body. In addition, 8 cases of laryngeal papilloma, 3 cases of laryngotracheobronchial spasm and 1 case of pharyngeal dysembryoma were also included in this study. The patients who had endotracheal intubation or tracheotomy were 39 cases (53.4%) and 27 cases (36.9%) respectively. Ten cases received non-surgery treatment. Seventy two cases diagnosis was confirmed and the related serious airway obstruction condition got stable within 12 hours. While serious complications occurred in 23 cases (31.5%) and operative complications occurred in 3 cases (4.1%). Four cases ( 5.5%) died and 68 cases (93.2%) were cured. One case refused to be treated. CONCLUSIONS: The condition of serious pediatric airway obstruction patients is usually critical, the related causes could be complicated, quick diagnosis and timely removal of the obstruction factors are imperative.