1. An investigation and analysis of abnormal menstruation in female nurses in a hospital in Beijing, China
Zihuan WANG ; Zhifeng SUN ; Yan YE ; Li HU ; Guixin YU ; Ligeng SUN ; Wenlan YU ; Jindong CHENG ; Xin SUN ; Zhuang SHEN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2018;36(6):429-432
Objective:
To investigate the status of abnormal menstruation in female nurses in a comprehensive hospital in Beijing, China and related influencing factors.
Methods:
In July 2016, a cross-sectional survey was performed, and a self-administered questionnaire was used to investigate the status of menstruation and occupation in female nurses in a comprehensive hospital in Beijing. The chi-square test and a multivariate logistic regression analysis were used for statistical analysis.
Results:
A total of 892 female nurses were investigated, and among them, 485 experienced abnormal menstruation within the past three months, resulting in an abnormal menstruation rate of 54.37%. The female nurses who were exposed to harmful factors during work, negative life events, or high workload had a significantly higher abnormal menstruation rate than those who were not exposed to such factors (χ2=5.199, 16.186, and 10.227,
2. A meta-analysis of Symptom Checklist-90 assessment results in Chinese nurses
Zihuan WANG ; Yan YE ; Zhuang SHEN ; Ligeng SUN ; Li HU ; Wenlan YU ; Ming XU ; Zhifeng SUN ; Jindong CHENG ; Xin SUN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2018;36(2):129-133
Objective:
To investigate the application of Symptom Checklist-90 (SCL-90) in Chinese nurses.
Methods:
We performed a literature search for articles in Chinese on the mental health of nurses investigated using the SCL-90 that were published from January 2007 to December 2016. A total of 129 articles were included, involving 178 groups of valid samples as well as 36316 subjects in 27 provinces or cities in China. The metafor package of R 3.2.1 software and Excel were used for meta-analysis and data statistics.
Results:
Heterogeneity was identified for the nine factors included in the literature data (Q test:
3. An analysis of the evaluation results of symptom checklist 90 for occupational females in different industries
Zihuan WANG ; Wenlan YU ; Zhuang SHEN ; Yan YE ; Li HU ; Guixin YU ; Ligeng SUN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2017;35(11):840-843
Objective:
To evaluate the mental health of occupational females in different industries.
Methods:
We investigated the psychologic status of Chinese occupational females using symptom checklist 90. And statistical software was applied to analyze results of symptom checklist 90.
Results:
There were 41, 166 effec-tive questionnaires. The number of positive questionnaires was 14 361, and the positive rate was 34.89%. The positive rate of obsessive-compulsive factor was 24.07%. The positive rate of somatization factor was 16.12%. The positive rate of depression was 15.50%. The median positive item number was 20 (IQR: 34) , and the median split of positive symptoms was 2.11 (IQR: 0.37) . There were differences in the positive rate of SCL-90 scale among different age groups, different regions and different industries, the difference was statistically significant (
4. An analysis of the evaluation results of symptom checklist 90 for female medical workers
Zihuan WANG ; Yan YE ; Zhuang SHEN ; Jianguo ZHANG ; Baoping GUO ; Wenlan YU ; Li HU ; Guixin YU ; Ligeng SUN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2018;36(10):745-748
Objective:
To evaluate the mental health of female doctors and nurses.
Methods:
Investigat the psychologic status of female doctors and nurses using symptom checklist 90. And statistical software was applied to analyze results of symptom checklist 90.
Results:
There were differences in the score of SCL-90 between doctor and nurse groups, the difference was statistically significant (
5. Analysis of needlestick injuries and depression among the female medical staff in a city district in 2018
Wenju YUAN ; Ligeng SUN ; Zhi WANG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2019;37(6):443-445
Objective:
To investigate needlestick injuries and depression among the female medical staff in a city district.
Methods:
Using cross-sectional survey methods, female medical staff from selected sixteen hospitals voluntarily participated in questionnaire survey on APP of mobile phone. They Data were uploaded assessment platform, saved by Excel, and analysed by SPSS 22.0 statistical software.
Results:
The lasted year, Incidence of needlestick injuries was 11.28%. Incidence of needlestick injuries was respectively 5.2%, 9.1% and 16.3% in Class-I hospital, Second-class Hospital and three levels of hospitals(χ2=28.900,
6. Prevalence of reproductive system diseases among female workers in a city and related occupational influencing factors: an analysis of 9944 cases
Li HU ; Liyan FANG ; Zhuang SHEN ; Yingdi REN ; Zihuan WANG ; Yijie XIONG ; Guixin YU ; Ligeng SUN ; Yan YE
Chinese Journal of Industrial Hygiene and Occupational Diseases 2018;36(2):118-121
Objective:
To investigate the prevalence of reproductive system diseases among female workers in a city and related occupational influencing factors.
Methods:
From June to September, 2016, a cross-sectional survey was used to select 9 944 female workers from six districts of Beijing and then a face-to-face questionnaire survey was performed. Univariate analysis using chi-square test and multivariate logistic regression analysis were used to investigate the risk factors for reproductive system diseases.
Results:
The age of 9944 female workers ranged from 18 to 65 years (mean 35.53±9.52 years) , and among them, 7 351 (73.92%) were married. The overall prevalence rate of reproductive system diseases among these 9944 female workers during the past three months was 28.29%, and the prevalence rates of hyperplasia of mammary glands, vaginitis, and hysteromyoma were 15.54%, 11.25%, and 6.77%, respectively. After adjustment for age, marital status, education level, and annual family income, the multivariate logistic regression analysis showed that frequent overtime work (odds ratio[
7.Finite element analysis of optimal fixation method for femoral neck fracture with different reduction conditions
Biao HAN ; Ji LI ; Bin LI ; Bo SUN ; Shuangle ZONG ; Hongrun WANG ; Dongmei LI ; Ligeng LI ; Bin WANG
Chinese Journal of Tissue Engineering Research 2024;28(12):1810-1814
BACKGROUND:The traditional fixation method for femoral neck fractures is three hollow screws inverted triangle fixation,and the optimal fixation method for femoral neck fractures that have not achieved anatomical reduction is inconclusive. OBJECTIVE:To compare the biomechanical properties of cannulated screws internal fixation for sub-capitated femoral neck fracture with different reduction qualities based on finite element analysis. METHODS:The three-dimensional digital model was reconstructed using CT data of the proximal femur from a healthy male volunteer.The femur was modeled to sub-capitated femoral neck fractures.Fracture models were divided into anatomical reduction group,coxa vara group,and coxa valgus group.All fracture model groups were transferred using the standard group,screw depression group,and screw elevation group.A vertical downward stress of 1 400 N was applied to the femoral head at the top of the acetabulum.The displacement and stress distribution of the femur and internal fixator under different fixation methods were observed,and the maximum stress and displacement of the femur and fixator were compared. RESULTS AND CONCLUSION:(1)For anatomical reduction femoral neck fracture,the peak stress of fixation in the standard group,screw depression group and screw elevation group was 41.35,31.27 and 43.32 MPa,respectively.The maximum peak stress of the femur was found on the screw elevation group(28.58 MPa),and the standard group had the maximum peak displacement.(2)During hip varus,the stresses in the three subgroups were relatively dispersed and even.The peak stress of the femur in the standard group was the smallest,but the peak displacement was the largest.The stability of fixation might be poor.The peak displacement of the femur in the screw depression group was the smallest.(3)In the hip valgus,obvious screw stress concentration appeared in the screw depression group,and the peak displacement was the largest among the three subgroups,and an in-out-in phenomenon appeared.The peak stress of the screws in the screw elevation group was the largest among the three subgroups,but the peak displacement was the smallest.(4)It is concluded that for sub-capitated femoral neck fractures that are completely anatomically reduced,it is recommended to use standard inverted triangular nails for fixation.When the hip varus and hip valgus occur within the allowable range of the reduction standard,it is recommended to use the inverted triangle screw to fix it by rotating the corresponding angle in the same direction as the hip varus or valgus.
8. Influence of environmental factors on the two-species biofilm formed by Streptococcus oligofermentans and Streptococcus mutans
Fei WU ; Mengci LI ; Cuicui SUN ; Ying LIU ; Ligeng WU
Chinese Journal of Stomatology 2019;54(7):456-462
Objective:
To study the influence of environmental factors on the two-species biofilm formed by the combinations of