Objective To understand the current situation of smoking and the influencing factors among female students of a medical college in Chongqing .Methods By applying the stratified cluster random sampling method ,992 female students were sam-pled from 5 faculties 3 grades in this college for conducting the smoking questionnaire investigation .Results The smoking rate a-mong female students was 3 .51% and the attempting smoking rate was 9 .18% .Among them ,the higher smoking rate mainly fo-cused on the students from urban area ,which was 9 .30% .The female students without opposite attitude to college student′s smok-ing had the smoking rate of 12 .11% and the female students with peripheral friends smoking had the smoking rate of 28 .22% .The influencing factors of smoking among female students included the place where the students came from ,student′s attitudes to smok-ing ,the smoking status of their peripheral friends ,etc .Conclusion The smoking rate among female students in the medical college is basically consistent to that of the national level of female smoking ,but the total cigarette contact rate is higher .It is necessary to strengthen the frequent smoking control education and intervention on the female students in the medical colleges for effectively re-ducing the smoking rate and decreasing the smoking harm to the female health .

Objective To understand the current situation of smoking among students of a medical college in Chongqing and its influencing factors .Methods By applying the stratified cluster random sampling method ,1 437 students were sampled from 5 facul-ties 3 grades in this college for conducting the smoking questionnaire investigation .Results The smoking rate was 12 .69% ,which in males and females were 32 .59% and 3 .51% ,respectively .Among them ,the nursing faculty and the grade 1 had the lowest smok-ing rates ,which were 4 .02% and 8 .84% respectively ;the smoking rate in the students from different origins had no statistical difference(P>0 .05) .The influencing factors of smoking included male ,faculty ,fresh students ,parents with smoking habit ,drink-ing and the knowledge acquistion frequency of smoking harmful to health ,etc .Conclusion It is imperative to strengthen the fre-quent smoking control education and intervention among the students in the medical colleges ,especially to males and the fresh students ,for effectively reduce the smoking rate .

Objective To understand the smoking intention in future 3-5 years among the students of a medical college in Chongqing .Methods According to the stratified cluster random sampling ,1 457 students from 3 grades in 5 faculties were sampled and performed the questionnaire investigation on the smoking behavior and smoking intention .Results The smoking rate was 12 .69% and the attempting smoking rate was 14 .95% .Among them ,the smoking rate and the attempting smoking rate in males were 32 .59% and 27 .46% ,and which in females were 3 .51% and 9 .18% ,respectively .The proportions of the students with hesi-tation and affirmation for answering the smoking intention in future 3-5 years and the current smoking students were 49 .44% and 23 .89% respectively ;which were 34 .82% and 14 .29% in males and 10 .52% and 1 .65% in females respectively ;which were 10 .24% and 3 .01% in grade 1 ,24 .73% and 7 .44% in grade 2 and 20 .30% and 6 .70% in grade 3 .Conclusion Partial medical students still insist on smoking in future ,and especially the students with the hesitating attitude of smoking in the future occupy a higher proportion .So it is necessary to strengthen the smoking control work in medical college and the antismoking attitude educa-tion .

Objective To investigate the efficacy of laparoscopy for the treatment of rectovaginal septum endometriosis. Methods A totalof 13 patients with rectovaginal septum endometriosis underwent open (5 cases) or laparoscopic (8 cases) operations in our hospital between January 2001 and May 2006.Results In the open surgery group,the operation time ranged from 130 to 200 minutes (mean,187 minutes) ,and the mean intraoperative blood loss was 189 ml (170 to 280).After the operation,the menstrual pain was relieved in 5 cases at 1 month,4 at 3 months,3 at 6 months,and 2 at 12 months.Whereas,in the laparoscopy group,the operation time ranged from 120 to 185 minutes (mean,155 minutes),and the mean blood loss was 135 ml(100 to 190 ml).The menstrual pain was relieved in 8 cases at month 1,8 cases at month 3,7 cases at month 6,and 5 cases at month 12.Conclusions Laparoscopic surgery is effective and safe for patients with rectovaginal septum endometriosis.

We reported a clinical caseof gas gangrene in the lower back and buttocks due to local intramuscular injection. A 43-year-old male was treated by local private clinic for low back pain. He underwent local intramuscular injection in his lower back and buttocks. 5 or 6 hours after the treatment,he felt worsen of low back pain (VAS 5 points)with a fever. After one day of treatment, the lower back pain was even worse(VAS 8 points). And he had soy-sauce urine and a high fever. The results of laboratory examination and clinical manifestation suggested multiple organ failure within a short period of time. Imaging (CT) suggested large area of gas and muscle necrosis in the lower back and buttocks. Considering the progress of the disease, emergency surgery on lumbar back and right buttocks was performed after hospitalization. Rapid bacterial smear reported gram-positive coarse bacteria. Anaerobic culture suggested clostridium perfringens. Aerobic culture result did not show any bacterial growth. According to the clinical manifestation, imaging (CT), intraoperative judgment and postoperative anaerobic culture results, the clinical diagnosis was gas gangrene. Gas gangrene is a special infectious disease in clinic, which can be characterized by low morbidity, difficult early diagnosis,rapid disease progression and high mortality. Sinceintramuscular injection leaded to this disease in our case, the importance of standardized aseptic procedures should be emphasized.

OBJECTIVETo analyze the correlation between population characteristics and work ability of employees with a multilevel model, to investigate the important influencing factors for work ability, and to provide a basis for improvement in work ability.

METHODSWork ability index (WAI)was applied to measure the work ability of 1686 subjects from different companies (n=6). MLwi N2.0 software was applied for two-level variance component model fitting.

RESULTSThe WAI of employees showed differences between various companies (χ2=3.378 6, P=0.0660); working years was negatively correlated with WAI (χ2=38.229 2, P=0.0001), and the WAI of the employees with 20 or more working years was 1.63 lower than that of the employees with less than 20 working years; the work ability of manual workers was lower than that of mental-manual workers (χ2=8.2726, P=0.0040), and the work ability showed no significant difference between mental workers and mental-manual workers (χ2=2.086 0, P=0.148 7).

CONCLUSIONFrom the perspective of probability, the multilevel model analysis reveals the differences in work ability of employees between different companies, and suggests that company, work type, and working years are the important influencing factors for work ability of employees. These factors should be improved and adjusted to protect or enhance the work ability of employees.

Humans ; Models, Theoretical ; Multilevel Analysis ; Occupations ; Probability ; Work ; Work Capacity Evaluation

OBJECTIVETo assess the impact of work-related musculoskeletal disorders (WRMDs) on work ability among workers.

METHODSA total of 1686 workers in various occupations, such as administration and education, were enrolled as subjects using the random cluster sampling method. The WRMDs and work ability of all subjects were evaluated using standardized Nordic questionnaires for the analysis of musculoskeletal symptoms and the Work Ability Index (WAI) scale, respectively. Comparison of work ability and its classification between the disease group and the non-disease group was performed by paired t test, RxC table χ2 test, and the Wilcoxon rank-sum test. The relationship between work duration and work ability was analyzed by the Spearman correlation test and a multi-level model.

RESULTS(1). The work ability of workers in the disease group was significantly lower than that in the non-disease group (P<0.0 1). (2) There were significant differences in work ability between workers with different work durations (<10 years, 10-20 years, and ≥20 years) (F=22.124, P< 0.01). With the increase in work duration, the work ability of workers declined in both groups, and the work ability of workers in the disease group (Spearman coefficient rs=-0. 172, P<0.01) had a more significant decline than that in the non-disease group (Spearman coefficient rs=-0.104, P<0.01). WRMDs were important risk factors for the decrease in work ability among workers. (3) There were significant differences in constituent ratios and levels of work ability classification between the disease group and the non-disease group (χ2=121.097, P<0.01; Z=-10.699, P<0.01). The proportions of workers with poor and medium work ability in the disease group were significantly higher than those in the non-disease group, while the proportion of works with excellent work ability in the disease group was significantly lower than that in the non-disease group. The similar characteristics in constituent ratios and levels of work ability classification could be found between the disease group and the non- disease group in various occupations (P<0.01).

CONCLUSIONWRMDs have a harmful effect on the work ability of workers, and the work ability of workers substantially declines with the increase in exposure time (work duration).

Humans ; Musculoskeletal Diseases ; physiopathology ; Occupational Health ; Occupations ; Risk Factors ; Surveys and Questionnaires ; Work Performance

OBJECTIVETo characterize the distribution of work-related musculoskeletal disorders (WRMD) among the occupational population.

METHODSA total of 1686 people of various occupations were recruited with random cluster sampling. Standardized Nordic questionnaires for the analysis of musculoskeletal systems were used to evaluate WRMD at the neck, shoulder, or lower back in the past one year. The annual prevalence of WRMD was determined. Difference analysis was performed with t-test, ANOVA, or chi-square test. The relationship between personal characteristics and WRMD was analyzed by unconditional logistic regression.

RESULTS(1) WRMD were most frequently observed at the neck, followed by the lower back, and was least observed at the shoulder (P < 0.05). The prevalence of WRMD among mental workers was significantly higher than those among physical workers and mental-physical workers (P < 0.01). The prevalence of WRMD among female workers was significantly higher than that among male workers (P < 0.05). (2) In general, the prevalence of WRMD significantly rose with the increases in age (<30, 30∼, 40∼, and ≥ 50 years) or working years (<10, 10∼, and ≥ 20 years) (P < 0.05). (3) In the face of sickness or injury, physical workers and mental workers showed a relatively high absence rate but a relatively low medical visiting rate (13.05%). (4) Unconditional logistic regression analysis showed that mental work, gender, and working year were the main influential factors for WRMD among workers.

CONCLUSIONWorkers of different types of occupation, genders, ages, and working years have different risks of WRMD at the neck, shoulder, and lower back.

Adult ; Female ; Humans ; Logistic Models ; Male ; Middle Aged ; Musculoskeletal Diseases ; epidemiology ; Occupational Diseases ; epidemiology

Objective: To investigate the effects of parental feeding practices on anemia in children aged 0-6 years in the minority area of the plateau, and to provide evidence for anemia intervention. Methods: A total of 1 726 children aged 0-6 years in 4 counties of Gannan Tibetan Autonomous Prefecture were selected by stratified random cluster sampling to measure hemoglobin level. Parental feeding practices were evaluated. Results: The anemia prevalence rate among children aged 0-6 years was 50.3%. The prevalence of anemia was higher in those with younger age, Tibetan ethnic, rural residence, low parents education level and family income(χ2=156.95，899.51，148.17，8.18，16.36，11.03，P<0.05). Parentl awareness rates on feeding knowledge were 10.0%-53.7%. The report rates of distraction and force-feeding were 51.4% and 36.1%, respectively. Logistic regression analysis showed that parents incorrect feeding knowledge and compulsive feeding behaviors were positively associated with anemia in children(P<0.05). Conclusion Improvement of parents health literacy and feeding behavior is an important intervention to reduce anemia in children aged 0-6 years.

Objective To explore the effect of total parathyroidectomy (PTX) with forearm autograft on the anemia and cardiac function in uremic patients with secondary hyperparathyroidism (SHPT).Methods The clinical data of 130 uremic patients who received PTX with forearm autograft in the First Affiliated Hospital of Zhejiang University from October 2010 to December 2015 were retrospectively analyzed.The changes of anemia and echocardiogram before and after operation were compared.According to the presence of left ventricular hypertrophy (LVH) before operation,the patients were divided into LVH group and non-LVH group.Echocardiographic indexes before and one year after operation of the two groups were compared.Results (1) Three months and one year after operation,hemoglobin and hematocrit increased while erythropoietin average usage decreased significantly (P＜0.01).(2) Compared with preoperative period,the dry weight was significantly increased one year after operation,and the cardiac function indexes including left ventricular end diastolic diameter (LVDd),interventricular septum end diastolic thickness (IVSd),left ventricular posterior wall end diastolic thickness (LVPWd),interventricular septum systolic thickness (IVSs),left ventricular systolic diameter (LVDs),left ventricular myocardial mass (LVM),and left ventricular myocardial mass index (LVMI) decreased significantly (P ＜ 0.05).(3) In the non-LVH group,only IVSs decreased one year after operation (P ＜ 0.05).In the LVH group,LVDs,LVDd,LVPWd,LVM,LVMI and IVSs were decreased significantly one year after operation than those in preoperative period (P ＜ 0.05).Conclusions PTX with forearm autograft is an effective treatment for uremic patients with SHPT significantly improving anemia and left ventricular structure and function,especially for patients with ventricular hypertrophy in preoperative.