Mental Health Status and Its Influencing Factors among College Students during the Epidemic of Coronavirus Disease 2019:A Multi-center Cross-sectional Study / 中国医学科学院学报

Objective To measure the prevalence of mental health symptoms and identify the associated factors among college students at the beginning of coronavirus disease 2019(COVID-19)outbreak in China. Methods We carried out a multi-center cross-sectional study via snowball sampling and convenience sampling of the college students in different areas of China.The rates of self-reported depression,anxiety,and stress and post-traumatic stress disorder(PTSD)were assessed via the 21-item Depression-Anxiety-Stress Scale(DASS-21)and the 6-item Impact of Event Scale-Revised(IES-6),respectively.Covariates included sociodemographic characteristics,health-related data,and information of the social environment.Data pertaining to mental health service seeking were also collected.Multivariate Logistic regression analyses were performed to identify the risk factors. Results A total of 3641 valid questionnaires were collected from college students.At the beginning of the COVID-19 outbreak,535(14.69%)students had negative emotions,among which 402(11.04%),381(10.49%),and 171(4.90%)students had the symptoms of depression,anxiety,and stress,respectively.Meanwhile,1245(34.19%)college students had PTSD.Among the risk factors identified,male gender was associated with a lower likelihood of reporting depression symptoms(AOR=0.755,P=0.037],and medical students were at higher risk of depression and stress symptoms than liberal arts students(AOR=1.497,P=0.003;AOR=1.494,P=0.045).Family support was associated with lower risks of negative emotions and PTSD in college students(AOR=0.918,P<0.001;AOR=0.913,P<0.001;AOR=0.899,P<0.001;AOR=0.971,P=0.021). Conclusions College students were more sensitive to public health emergencies,and the incidence of negative emotions and PTSD was significantly higher than that before the outbreak of COVID-19.More attention should be paid to female college students who were more likely to develop negative emotions.We should strengthen positive and proper propaganda via mass media and help college students understand the situation and impact of COVID-19.Furthermore,we should enhance family support for college students.The government and relevant agencies need to provide appropriate mental health services to the students under similar circumstances to avoid the deterioration of their mental well-being.

Patient and Care Delays of Breast Cancer in China / Journal of the Korean Cancer Association, 대한암학회지

PURPOSE: This study differentiates patient and care delays of breast cancer and explores the related factors as well as the associations with the prognosis in Guangzhou, a southern city of China. METHODS: A cohort of female incident breast cancer patients (n=1,551) was recruited from October 2008 to March 2012 and followed up until January 1, 2016 (n=1,374) in the affiliated hospitals of Sun Yat-sen University. The factors associated with patient and care delays were analyzed with multivariable logistic models. Cox proportional hazards regression models were constructed to estimate the impacts of the delays on the prognosis. RESULTS: There were 40.4% patient delay (≥3 months) and 15.5% care delay (≥1 month). The patient delay, but not the care delay, was significantly related to the clinical stage and consequently worsened the prognosis of breast cancer (hazard ratio, 1.45; 95% confidence interval, 1.09 to 1.91 for progression-free survival). The factors related to an increased patient delay included premenopausal status, history of benign breast disease, and less physical examination. CONCLUSION: Patient delay was the main type of delay in Guangzhou and resulted in higher clinical stage and poor prognosis of breast cancer. Screening for breast cancer among premenopausal women may be an effective way to reduce this delay.

Interaction of body mass index and a polymorphism in gene of catalytic subunit of glutamate cysteine ligase on breast cancer risk among Chinese women / 中华流行病学杂志

Objective To investigate the interaction of body mass index (BMI) and a single nucleotide polymorphism (SNP,rs17883901) in catalytic subunit of glutamate-cysteine ligase (GCLC) on breast cancer risk.Methods A total of 839 women with incident breast cancer and 863 age-matched controls without cancer were recruited at the same period in three affiliated hospitals of Sun Yat-sen University in Guangzhou from October 2008 to June 2010.GCLC rs17883901 was genotyped by MALDI-TOF-MS.Binary unconditional logistic regression was applied to calculate odds ratios and 95％ confidence intervals.Results The difference of present BMI and BMI at age 20 was not statistically significant between cases and controls,either as the genotypes of GCLC.No association was found between BMI at present and premenopausal or postmenopausal breast cancer risk.But we found that women who had a BMI at age 20 of 18.5 to 22.9 had a marginally decreased risk of premenopausal breast cancer [OR and 95％CI:0.69 (0.48,1.00)].Among women with CT/TT genotypes,whose present BMI was greater than 25 had a increased risk [OR and 95％CI:1.91 (1.09,3.36)] of breast cancer and a decreased risk [OR and 95％CI:0.56(0.31,0.99)] with a BMI at age 20 of 18.5 to 22.9.There was a interaction between GCLC gene (rs17883901)and BMI at present in breast cancer risk (P=0.043),which was not found between rs17883901 and BMI at age 20.Conclusion Our findings indicate BMI at age 20 may be a protective factor of premenopausal breast cancer,while no association appears between GCLC (rs17883901) and breast cancer.Obesity at present may significantly increase the risk of breast cancer among women with CT/TT genotypes of GCLC (rs17883901).

Association between urinary cadmium and clinicopathological characteristics of breast cancer / 中华肿瘤杂志

<p><b>OBJECTIVE</b>The aim of this study was to investigate the association between urinary cadmium and clinicopathological characteristics of breast cancer.</p><p><b>METHODS</b>The clinicopathological characteristics of 240 patients with breast cancer were obtained and urine specimens were collected from October 2009 to July 2010. The concentration of urinary cadmium was determined by inductively coupled plasma mass spectrometry (ICP-MS). χ(2) test and Wilcoxon rank sum test were used to analyze whether urinary cadmium is associated with clinicopathological characteristics of breast cancer.</p><p><b>RESULTS</b>The median concentration of urine cadmium of 240 patients was 1.99 µg/g (25th percentile, 1.32 µg/g; 75th percentile, 2.88 µg/g). HER-2 positive rate, regional/distant metastasis rate, and advanced stage rate in patients with the highest tertile of cadmium concentration were significantly higher than those in the patients with second and lowest Cd tertiles (P = 0.042, P = 0.028 and P = 0.017, respectively), and 28.2% vs. 16.5% for HER-2 and 47.2% vs. 32.0% for regional/distant metastasis, respectively. There were still significant associations between urinary cadmium levels and these clinicopathological parameters after being adjusted in age by unconditional logistic regression model, respectively (P < 0.05).</p><p><b>CONCLUSIONS</b>The results of this study suggest that urinary cadmium levels are associated with the HER-2 status, regional/distant metastasis status and stages of breast cancer, respectively. Cadmium may induce highly aggressive breast cancer in humans.</p>