ABSTRACT
ObjectiveTo explore the correlation between skeletal muscle mass and metabolic syndrome （MS） disease risk among middle-aged and elderly community residents in Urumqi， and to provide a theoretical basis for understanding the relationship between skeletal muscle mass and MS among middle-aged and elderly community residents in China. MethodsA total of 1 438 community residents ≥ 50 years old were selected as the research subjects from July 2018 to January 2019 in Urumqi. They were selected from a multi-ethnic natural population cohort in Xinjiang. Data were collected through questionnaires， physical examination， bioelectrical impedance analysis （BIA）， laboratory tests， etc. Skeletal muscle mass was evaluated using the limb skeletal muscle mass index （SMI） corrected for body weight； MS was defined as it at least includes three of the following： abdominal obesity， hypertension， hyperglycemia， high triglycerides and low high-density lipoprotein cholesterol. SMI was divided into four quantile arrays of Q1‒Q4. Trend χ2 test was applied to explore whether there was a correlation between SMI changes and MS. A multivariate logistic regression model was used to analyze whether there is a difference in the risk of MS between the higher SMI group （Q2， Q3， Q4） and the reference group Q1. ResultA total of 560 MS patients were detected in this study， with a prevalence rate of 38.94%. Among them， the prevalence rate of MS was 39.16% in males and 38.80% in females. The increase in male SMI grading level is not correlated with the prevalence of MS （trend P>0.05）； After adjusting for confounding factors （model 4）， the increase in SMI was still not related to the prevalence of MS （Ptrend=0.995）. There was no statistical difference in the risk of MS between the lowest quartile group Q1 and the highest quartile group Q4 （OR=1.01， 95%CI： 0.69‒1.78）. The prevalence of MS in women gradually decreased with the increase of SMI grading level （Ptrend<0.001）； After adjusting for confounding factors （model 4）， there was still a correlation between the increase of SMI and the prevalence of MS （Ptrend=0.005）. With the lowest quartile of SMI Q1 as the reference group， the risk of MS in Q2 （OR=0.63， 95%CI： 0.40‒1.00）， Q3 （OR=0.56， 95%CI： 0.34‒0.94）， Q4 （OR=0.42， 95%CI： 0.23‒0.76） decreased. ConclusionAn increase in skeletal muscle mass may be beneficial for preventing MS， especially among middle-aged and elderly female residents. Considering the intensification of aging in China and the close relationship between MS and related comorbidities， managing skeletal muscle mass may contribute to potential MS prevention.
ABSTRACT
Background There is a lack of evidence on whether exposure to PM2.5 and its constituents would affect the relationship between the dietary approaches to stop hypertension (DASH) and central obesity. Objective To investigate the effect of exposure to PM2.5 and its constituents on the correlation between the DASH dietary pattern and the prevalence of central obesity. Methods The data were obtained from the baseline survey of the "Xinjiang Multi-Ethnic Natural Population Cohort Construction and Health Follow-Up Study" in Urumqi. A DASH score was calculated according to intake frequency of 8 food groups, and summed from intake frequency of recommended food groups scored from 1 to 5 from low to high, and intake frequency of restricted food groups scored from 1 to 5 from high to low. A higher DASH score indicates better compliance with the DASH dietary pattern. We estimated exposure using satellite-derived PM2.5 and a chemical transport model (GEOS-Chem) for its constituents, including organic carbon (OC), black carbon (BC), sulfate (SO42−), nitrate (NO3−), ammonium (NH4+), and soil dust. Central obesity was defined by waist circumference: ≥90 cm for men or ≥85 cm for women according to Criteria of weight for adults (WS/T 428—2013). A logistic regression model was used to analyze the effects of the DASH dietary pattern as well as PM2.5 and its constituents on central obesity, and a stratified analysis was used to explore the effects of PM2.5 and its constituents on the association between the DASH dietary pattern and central obesity. Results The study included 9 565 urban residents, aged (62.30±9.42) years, with a central obesity prevalence rate of 60.75%. After adjusting for selected confounders, the DASH score Q5 group had a 17.5% lower risk of central obesity than the Q1 group (OR=0.825, 95%CI: 0.720-0.947). PM2.5 and its constituents OC, BC, SO42−, NH4+, and soil dust were positively associated with the prevalence of central obesity, but no association was observed between constituent NO3− exposure and central obesity. The stratified analysis revealed that the prevalence of central obesity was reduced in the DASH score Q5 group in participants exposed to low concentrations of PM2.5 and its constituents NO3−, NH4+, and soil dust, while the protective effect of the DASH pattern on central obesity disappeared in subjects exposed to high concentrations of PM2.5 and its constituents NO3−, NH4+, and soil dust. Conclusion Exposure to PM2.5 and its constituents NO3−, NH4+, and soil dust could attenuate the protective effect of the DASH pattern on central obesity.
ABSTRACT
Objective:To investigate the incidence rate, surgical rate and spontaneous cure of indirect inguinal hernia in children of Xinjiang region.Methods:Children, aged from 4?14 years, coming from 24 kindergartens, 18 primary schools and 9 junior middle schools of 3 countries and 5 cities in Xinjiang Uygur Autonomous Region were recruited to participate as respondents. The survey time for baseline data collection was from May 2013 to June 2014 and the retrospective cross-sectional survey was conducted. Parents of children were investigated by questionnaire, and children were examined on site. Observation indicators: (1) results of questionnaire survey; (2) illness and treatment of children involved in the study; (3) follow-up. Follow-up was conducted using telephone interview. Children who had been diagnosed and not been treated surgically at the time of questionnaire survey were followed up to detect disease progression and treatment in the past 5 years. If the symptoms of a child had disappeared during follow-up, parents of the child should accompany the child to hospital for physical examination and B-ultrasound examination to confirm the diagnosis, and then follow-up was conducted by telephone interview. The follow-up was up to January 2020. Count data were described as absolute numbers and percentages, and compari-son between groups was conducted using the chi-square test. Odds ratio and 95% confidence interval were calculated. Results:(1) Results of questionnaire survey. A total of 19 132 question-naires were distributed, and 19 132 complete questionnaires were recovered. Of the 19 132 children who completed the questionnaire survey, there were 9 670 males and 9 462 females. (2) Illness and treatment of children involved in the study. ① Incidence of indirect inguinal hernia in children with different sexes. Of the 19 132 children, 498 cases were diagnosed as indirect inguinal hernia, including 368 boys and 130 girls, with the prevalence as 3.806%(368/9 670) and 1.374%(130/9 462), respectively. There was a significant difference in the prevalence of indirect inguinal hernia between boys and girls ( χ2=111.54, P<0.05). The proportion of boys and girls in children with indirect inguinal hernia was 73.896%(368/498) and 26.104%(130/498), respectively, with the ratio of 2.8:1. The prevalence of boys was higher than girls ( odds ratio=2.84, 95% confidence interval as 2.32?3.48).② Age of children at first onset. Of the 498 children with indirect inguinal hernia, 59 cases were aged 1?4 years at first onset including 54 boys and 5 girls, 264 cases were aged 5?8 years including 196 boys and 68 girls, 148 cases were aged 9?12 years including 104 boys and 44 girls, 27 cases were aged 13?14 years including 14 boys and 13 girls. There was a significant difference in the age of children at first onset between boys and girls ( χ2=17.33, P<0.05). ③ Pathogenic factors in children with indirect inguinal hernia. Of the 498 children with indirect inguinal hernia, 457 cases had complete family history and crying history, and 41 cases were missing. Family history: of the 457 children with indirect inguinal hernia who had complete family history, there were 175 cases with the family history of indirect inguinal hernia and 282 cases without the family history. Of the 478 healthy children surveyed in the same period, there were 25 cases with the family history and 453 cases without the family history. There was a significant difference in the family history between the 457 children with indirect inguinal hernia and the 478 healthy children ( χ2=515.89, P<0.05). Crying history: of the 457 children with indirect inguinal hernia who had complete crying history, there were 194 cases with obvious crying history and 263 cases without obvious crying history. Of the 496 healthy children surveyed in the same period, there were 99 cases with obvious crying history and 397 cases without obvious crying history. There was a significant difference in the crying history between the 457 children with indirect inguinal hernia and the 496 healthy children ( χ2=56.51, P<0.05). ④ Surgical treatment. Of the 498 children with indirect inguinal hernia, 233 cases underwent surgical treatment including 217 boys and 16 girls, 265 cases were followed up without surgical treatment including 151 boys and 114 girls. The surgical rate for indirect inguinal hernia in boys and girls was 58.967%(217/368) and 12.308%(16/130), respectively, showing a significant difference between them ( χ2=84.01, P<0.05). The operation ratio of boys and girls was 13.6:1, and the surgical rate of boys was higher than girls ( odds ratio=10.24, 95% confidence interval as 5.83?17.98). (3) Follow-up. All the 265 children without surgical treatment for indirect inguinal hernia were followed up for 5 years. During the follow-up, there were 142 of 151 boys with surgical treatment and 9 boys without surgical treatments, showing negative in spontaneous cure. There were 27 of 114 girls with surgical treatment and 87 girls without surgical treatment, showing 55 cases positive in spontaneous cure and 32 cases still with indirect inguinal hernia. There was a significant difference in spontaneous cure between the 151 boys and the 114 girls ( χ2=143.79, P<0.05). Conclusion:In Xinjiang region, the incidence rate and surgical rate of indirect inguinal hernia are lower in girls compared with boys, and the spontaneous cure rate is higher in girls compared with boys.
ABSTRACT
Objective To study the impact of brief intervention on HPV cognition of medical students in Xinjiang, and to provide a reference for the development of HPV related education in medical students. Methods Sudents from 20 classes of a medical university in Xinjiang were randomly selected. The first 10 classes were enrolled into group 1, which was a self-controlled study group evaluating the effect before and after intervention. The other 10 classes were included in group 2, in which students in each class were randomly divided into control group (filling in questionnaires before the intervention) and intervention group (filling in questionnaires after the intervention). Medical students were given a 10 minutes presentation on the intervention of HPV by trained personnel. Results (1) For HPV related knowledge, the difference in the awareness rates between the two groups before and after intervention was statistically significant (P < 0.001), and the awareness rate after intervention was higher than that before intervention. Before the intervention, the awareness rates of medical students in group 1 and group 2 were 18.67% and 17.71%, respectively, which increased to 66.75% and 52.85% after the intervention (P<0.01). (2) Regarding HPV-related attitudes and behavioral content, the differences in the response results of the two groups of students before and after the intervention were statistically significant (P<0.05), showing a more positive state after the intervention. Before the intervention, there were 86.19% and 88.02% of the students in group 1 and group 2 willing to publicize HPV-related knowledge to their relatives and friends, and the numbers increased to 94.12% and 94.82%, respectively, after the intervention (P < 0.05). Conclusion Both self-controlled and parallel-controlled studies demonstrated that brief interventions improved medical students' awareness of HPV.
ABSTRACT
PURPOSE: We aimed to assess if lipid accumulation product (LAP) could outperform body mass index (BMI) as a marker for diabetes diagnosis. METHODS: We analyzed the results of a national physical examination project in Urumqi, China. This project was conducted in 442 community clinics in Urumqi from October 2016 to February 2017. RESULTS: LAP was highly correlated with diabetes. The subjects with higher amounts of LAP had a higher risk of diabetes, and the prevalence of diabetes in the fourth quartile of LAP was dramatically higher than in the first quartile (5.72% vs. 21.76%). The adjusted odds ratios (AOR) associated with diabetes in the fourth quartile of LAP was significantly higher than the AOR associated with diabetes in the first quartile, and when BMI ≥ 28 kg/m2 was compared with BMI < 28 kg/m2 (3.24 (3.11, 3.37) vs. 1.65 (1.60, 1.70)). The LAP's area under the curve (AUC) was significantly higher than the BMI's AUC when based on diabetes (0.655 vs. 0.604). In the normal BMI group, 34% of participants had a LAP value higher than the cutoff point found during ROC analysis. In this subgroup, we observed a significantly higher prevalence of diabetes that was similar to that of the subgroup with a BMI ≥ 28 kg/m2, and both of their LAP values were higher than the cutoff point. CONCLUSION: When use as a tool for diabetes diagnosis, LAP performed better than BMI, implying that LAP could be a preferable anthropometry assessment.
ABSTRACT
BACKGROUND: Human papillomavirus (HPV) infection is common among men who have sex with men (MSM), especially among Human Immunodeficiency Virus (HIV)-infected MSM. The prevalence of HPV among MSM, accounts for the higher incidence of HPV-related cancer observed in this population. It is well known that targeted HPV vaccination is an effective way to prevent HPV infection; an intervention which could be beneficial for a high-risk group such as MSM. The current study aimed to assess the attitudes towards and acceptability of the HPV vaccine among MSM in in Urumqi, China. METHODS: A total of 253 HIV-uninfected and 205 HIV-infected MSM (in Urumqi, China participated in the current cross-sectional study. Information on HPV-related knowledge, willingness to be vaccinated as well as demographic data were collected through a self-administered survey. A logistic regression model was applied to determine the predictors of HPV vaccine acceptability among the population. RESULTS: The survey results indicated that only 218 (47.6%) of MSM questioned were aware of the term HPV, nevertheless, once awareness was established the prevalence of acceptability of free HPV vaccine was recorded at 96.7% of the total MSM sample. However, HIV-uninfected and HIV-infected MSM demonstrated significantly different attitudes in regard to their acceptability of free HPV vaccination (94.9% vs. 99.0%, p < 0.001) as well as their willingness to pay for the HPV vaccination (64.8% vs. 80.5%, p < 0.001), with the HIV-infected group being significantly more receptive towards HPV immunization. A multivariate logistic regression analysis indicated that local residency, employment status, hepatitis B vaccination status, previous awareness of HPV and HIV status were independent predictors of the participants' willingness to pay for HPV vaccination. CONCLUSIONS: Participants in the current study demonstrated poor knowledge of HPV but the majority of MSM were willing to accept HPV vaccine after consultation; with HIV-infected MSM displaying higher acceptability towards a potential HPV vaccination than HIV-uninfected MSM. MSM who were previously aware of HPV were more likely to be willing to pay for HPV vaccine.
Subject(s)
Health Knowledge, Attitudes, Practice , Homosexuality, Male , Papillomavirus Infections/prevention & control , Papillomavirus Vaccines/administration & dosage , Patient Acceptance of Health Care , Vaccination/psychology , Adult , Cross-Sectional Studies , HIV Infections/complications , HIV Infections/epidemiology , Humans , Male , Surveys and QuestionnairesABSTRACT
Objective@#To analyze the influence of the confidence to pre-exposure prophylaxis (PrEP) on the willingness to use PrEP in men who have sex with men (MSM) by using the path analysis model based on structural equation model approach.@*Methods@#A total of 550 MSM were recruited in Urumqi by snowball method and a questionnaire survey was conducted among them. According to the professional knowledge and analysis results of the confidence and willingness to use PrEP, structural equation model (SEM) analysis method was used to construct a path analysis model.@*Results@#A total of 513 MSM participated in the survey. The modified path equation model was well fitted, with the modified fitting index as: GFI=0.993, RMSEA<0.001, and AGFI=0.984. The confidence to PrEP had direct influence on the willingness; the degree of influence from sex partners, the attitude of sex partner to PrEP and the positive emotions not only had direct effects on willingness of PrEP use, but also had indirect effects on willingness of PrEP use by affecting the confidence to it; the role in sexual behavior, AIDS severity, HIV prevention behavior had direct effects on willingness of PrEP use. The proportion of HIV infection in the population had no direct effects on willingness of PrEP use, but had indirect effects on willingness of PrEP use by affecting the confidence to it.@*Conclusions@#The confidence to PrEP had influence on willingness of PrEP use in MSM, therefore targeted activities can be conducted to improve the confidence and willingness of MSM in taking the PrEP and reducing the risk of HIV infection in MSM. Compared with the traditional multiple regression analysis, the path analysis using the structural equation model could better reveal the mediating effect between the independent variables and dependent variables.
ABSTRACT
Objective@#To study the prevalence of rush poppers use among men who have sex with men (MSM) in Urumqi and to analyze the mediating effect of high-risk sexual behavior between the use of rush poppers and human papillomavirus (HPV) infection.@*Methods@#From January to June 2018, 651 MSM were recruited through network and publicity. Data was collected by using online questionnaire and anal swab were collected from them for HPV genotyping. According to Baron and Kenny's criterion, multivariate logistic regression models was used to analyze the mediation effect of high-risks sexual behaviors (multiple sexual partners, anal intercourse condom use) between rush poppers use and HPV infection.@*Results@#A total of 651 subjects were (32.0±8.0) years old, and 174 subjects (26.7%) had ever used rush poppers in the past 6 months, while 350 subjects (46.9%) had more than 2 sexual partners and 188 subjects (28.9%) did not use anal condom. After adjusting age and marital status, rush poppers use was associated with HPV infection (OR (95%CI) was 2.34 (1.63-3.36), P<0.05), and sexual partners in the past 6 months (OR (95%CI) was 2.72 (1.89-3.93), P<0.05).After adjustment for age, marital status, sexual partners in the past 6 months, and anal condom use, rush poppers use was still associated with HPV infection (OR (95%CI) was 2.21 (1.53-3.19), P<0.05).After adjustment and adjustment of age, marital status, rush poppers use and anal sex condom use, the number of sexual partners at nearly 6 months was still associated with HPV infection (OR (95%CI) was 1.46 (1.05-2.04), P<0.05).@*Conclusion@#Sexual partners in the past 6 months have a mediation effect between rush poppers use and HPV infection in Urumqi. For the prevention of sexually transmitted diseases, we should focus on rush poppers use.
ABSTRACT
<p><b>OBJECTIVE</b>To investigate whether trajectory model can be used to explore the trend of anal human papillomavirus (HPV) infection status among HIV-negative men who have sex with men (MSM).</p><p><b>METHODS</b>HIV-negative MSM were recruited by using the "snowball" method from 1st September 2016 to 30th September 2017 in Urumqi. The subjects were followed-up every six months since enrollment. The cell samples in anal canal were collected and the 37-type HPV test kits were used for identification and classification of HPV infection at both baseline and follow-up visits. Taking the cumulative number of different types of HPV as the dependent variable and follow-up visits as the independent variable, the trajectory model was established for the study subjects who completed baseline, 6 months and 12 months follow-up. The model was used to simulate the trend of HPV infection status when the subjects were divided into 1, 2, 3 and 4 subgroups. Bayesian information criterion (BIC), log Bayes factor and average posterior probability (AvePP) were used to evaluate the fitting effect.</p><p><b>RESULTS</b>A total of 400 HIV-negative MSM were recruited at baseline and 187 subjects completed baseline and two follow-ups. The fitting effect attained best when the variation trend was divided into two subgroups. The first subgroup accounted for 54.5%(102/187) of the total, and the curve of change in HPV infection was decreasing; the second subgroup accounted for 45.5%(85/187) of the total, and the curve of change in HPV infection was increasing.</p><p><b>CONCLUSIONS</b>Trajectory model can effectively distinguish the trend of HPV infection status in HIV-negative MSM to identify the high-risk group of HPV infection.</p>
Subject(s)
Humans , Male , Anal Canal , Bayes Theorem , HIV Infections , Homosexuality, Male , Papillomavirus Infections , Prevalence , Risk Factors , Sexual and Gender MinoritiesABSTRACT
BACKGROUND: Infection with human papillomavirus (HPV) is the most common sexually transmitted infection among men who have sex with men (MSM). Study on prevalence and risk factors of anal HPV infection among HIV-negative MSM in Northwestern China was rare. METHODS: We performed a cross-sectional study of HPV prevalence using anal swab specimens among HIV-negative MSM in Urumqi city of Xinjiang Uyghur Autonomous Region, China between April 1st and October 30th in 2016. Prevalence of any anal HPV infection, high-risk and low-risk HPV infection was estimated. Risk factors associated with any anal HPV infection was analyzed using univariate and multivariate logistic regression models. RESULTS: Among 538 potential participants, 500(92.9%) were recruited in this study. The genotyping results of anal HPV infection were available for all. Of them, 259 (51.8%), 190 (38.0%) and 141(28.2%) were positive for at least one of the targeted 37 HPV genotypes, high-risk HPV genotypes, and any low-risk HPV genotypes. The most prevalent anal HPV genotype was HPV 6(11.8%), followed by HPV 16(11.2%), HPV 11(10.8%), HPV 51(7.0%) and HPV 18(5.4%).Among those infected with at least one of the targeted 37 anal HPV genotypes, 75(29.0%), 155(59.8%) and 191(73.7%) were infected with 2-valent, quadrivalent and 9-valent HPV vaccine-covered genotypes. Receptive anal intercourse in the past year was the only predictor of any anal HPV infection in multivariate logistic regression model. CONCLUSION: Prevalence of any anal HPV infection and high-risk HPV infection among HIV-negative MSM in Urumqi city of Xinjiang is high. The majority of genotypes detected in our study were covered by quadrivalent and 9-valent HPV vaccines. Regular anal exams and early HPV vaccination among MSM may be considered in future HPV prevention programs in Xinjiang, China.
Subject(s)
Alphapapillomavirus/isolation & purification , Anus Diseases/epidemiology , HIV Seronegativity , Homosexuality, Male , Sexual Partners , Tumor Virus Infections/epidemiology , Adult , Alphapapillomavirus/classification , Alphapapillomavirus/genetics , Anus Diseases/virology , China/epidemiology , Cross-Sectional Studies , Genes, Viral , Humans , Male , Prevalence , Regression Analysis , Risk Factors , Tumor Virus Infections/transmission , Tumor Virus Infections/virologyABSTRACT
Objective To understand the human papilloma virus (HPV) infection status in men who have sex with men (MSM) recruited from gay bathhouses and HIV voluntary counseling and testing (VCT) clinics in Urumqi,Xinjiang Uygur autonomous region,and identify the associated risk factors.Methods A total of 200 MSM aged ≥≥ 18 years were recruited by using the "snowballing" sampling method from gay bathhouses and VCT clinics in Urumqi during March-May,2016.The MSM recruited completed questionnaires after filling in the informed consent form.The information about their demographic characteristics and sexual behaviors were collected,and anal swabs were collected from them for HPV genotyping.Results The overall HPV infection rate was 54.0％.The HPV infection rate was 66.7％(74/111) in MSM from gay bathhouses and 38.2％(34/89) in MSM from VCT clinics and the high risk type HPV infection rate was 39.6％ (44/111) in MSM from gay bathhouses and 14.6％(13/89) in MSM from VCT clinics,the differences were significant (x2=16.112,P＜0.05;x2=15.190,P＜0.05).Multiple logistic regression analysis indicated that the major risk factors for HPV infection included activity in gay bathhouse (OR=3.732,95％CI:1.950-7.141) and anal sexual behavior (OR=2.555,95％ CI:1.329-4.912).Conclusion The prevalence of HPV in MSM from gay bathhouses was higher than that in MSM from VCT clinics,indicating that close attention should be paid to the behavior intervention in MSM.
ABSTRACT
Objective To understand the human papilloma virus (HPV) infection status in men who have sex with men (MSM) recruited from gay bathhouses and HIV voluntary counseling and testing (VCT) clinics in Urumqi,Xinjiang Uygur autonomous region,and identify the associated risk factors.Methods A total of 200 MSM aged ≥≥ 18 years were recruited by using the "snowballing" sampling method from gay bathhouses and VCT clinics in Urumqi during March-May,2016.The MSM recruited completed questionnaires after filling in the informed consent form.The information about their demographic characteristics and sexual behaviors were collected,and anal swabs were collected from them for HPV genotyping.Results The overall HPV infection rate was 54.0％.The HPV infection rate was 66.7％(74/111) in MSM from gay bathhouses and 38.2％(34/89) in MSM from VCT clinics and the high risk type HPV infection rate was 39.6％ (44/111) in MSM from gay bathhouses and 14.6％(13/89) in MSM from VCT clinics,the differences were significant (x2=16.112,P＜0.05;x2=15.190,P＜0.05).Multiple logistic regression analysis indicated that the major risk factors for HPV infection included activity in gay bathhouse (OR=3.732,95％CI:1.950-7.141) and anal sexual behavior (OR=2.555,95％ CI:1.329-4.912).Conclusion The prevalence of HPV in MSM from gay bathhouses was higher than that in MSM from VCT clinics,indicating that close attention should be paid to the behavior intervention in MSM.
ABSTRACT
Objective Knowledge-motivation-psychological model was set up and tested through structural equation model to provide evidence on HIV prevention related strategy in Men who have Sex with Men (MSM).Methods Snowball sampling method was used to recruit a total of 550 MSM volunteers from two MSM Non-Governmental Organizations in Urumqi,Xinjiang province.HIV prevention related information on MSM was collected through a questionnaire survey.A total of 477 volunteers showed with complete information.HIV prevention related Knowledge-motivationpsychological model was built under related experience and literature.Relations between knowledge,motivation and psychological was studied,using a ‘structural equation model’ with data from the fitting questionnaires and modification of the model.Results Structural equation model presented good fitting results.After revising the fitting index:RMSEA was 0.035,NFI was 0.965 and RFI was 0.920.Thereafter the exogenous latent variables would include knowledge,motivation and psychological effects.The endogenous latent variable appeared as prevention related behaviors.The standardized total effects of motivation,knowledge,psychological on prevention behavior were 0.44,0.41 and 0.17 respectively.Correlation coefficient of motivation and psychological effects was 0.16.Correlation coefficient on knowledge and psychological effects was-0.17 (P＜0.05).Correlation coefficient of knowledge and motivation did not show statistical significance.Conclusion Knowledge of HIV and motivation of HIV prevention did not show any accordance in MSM population.It was necessary to increase the awareness and to improve the motivation of HIV prevention in MSM population.
ABSTRACT
Objective Knowledge-motivation-psychological model was set up and tested through structural equation model to provide evidence on HIV prevention related strategy in Men who have Sex with Men (MSM).Methods Snowball sampling method was used to recruit a total of 550 MSM volunteers from two MSM Non-Governmental Organizations in Urumqi,Xinjiang province.HIV prevention related information on MSM was collected through a questionnaire survey.A total of 477 volunteers showed with complete information.HIV prevention related Knowledge-motivationpsychological model was built under related experience and literature.Relations between knowledge,motivation and psychological was studied,using a ‘structural equation model’ with data from the fitting questionnaires and modification of the model.Results Structural equation model presented good fitting results.After revising the fitting index:RMSEA was 0.035,NFI was 0.965 and RFI was 0.920.Thereafter the exogenous latent variables would include knowledge,motivation and psychological effects.The endogenous latent variable appeared as prevention related behaviors.The standardized total effects of motivation,knowledge,psychological on prevention behavior were 0.44,0.41 and 0.17 respectively.Correlation coefficient of motivation and psychological effects was 0.16.Correlation coefficient on knowledge and psychological effects was-0.17 (P＜0.05).Correlation coefficient of knowledge and motivation did not show statistical significance.Conclusion Knowledge of HIV and motivation of HIV prevention did not show any accordance in MSM population.It was necessary to increase the awareness and to improve the motivation of HIV prevention in MSM population.
ABSTRACT
<p><b>OBJECTIVE</b>To understand the distributions of waist circumference and waist-to-height ratio (WHtR) in Han and Uygur ethnic children aged 3-9 years in Xinjiang Uygur Autonomous Region (Xinjiang) and discuss their values in obesity screening in children.</p><p><b>METHODS</b>Stratified cluster random sampling was conducted to select Han and Uygur ethnic children from kindergartens and primary schools in four areas of Xinjiang in April 2014. The children's standing height, body weight and waist circumference were measured by trained investigators according to standard protocol. WC>or=P80 and WHtR>or=0.48 were used as the cutoff value for abdominal obesity screening in children with normal BMI. The association between overweight/obese prevalence rate and obesity related indicators, such as BMI, WC, WHtR, were analyzed.</p><p><b>RESULTS</b>A total of 4024 Han and Uygur ethnic children were investigated, in which 2461 were in Han ethnic group, 1563 were in Uygur ethnic group. The WC and WHtR at P50 and P80 were differed significantly. In both Han and Uygur ethnic groups, there were some children with WC>or=P80 or WHtR>or=0.48, although they had normal BMI. This proportion decreased with age.</p><p><b>CONCLUSIONS</b>The WC and WHtR are similar in Han and Uygur ethnic children aged 3-9 years. WC and WHtR have values in obesity screening for children with normal BMI which suggested to use it as the supplementation of BMI in obesity screening in preschool aged children.</p>
