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1.
BMC Public Health ; 23(1): 658, 2023 04 06.
Article in English | MEDLINE | ID: mdl-37024859

ABSTRACT

BACKGROUND: Nicotine dependence is a significant public health issue, and understanding the factors associated with nicotine dependence in this population is crucial for developing effective interventions. This study examined the association between family functioning and nicotine dependence levels of smoking fathers based on the McMaster model of family functioning (MMFF), providing evidence for future interventions. METHODS: In this study, we selected fathers of first- to fifth-grade students from 10 pilot elementary schools in Qingdao whose families smoked. We used the Fagerstrom test to assess nicotine dependence and the Family Assessment Device to evaluate family functioning. We performed univariate analysis to compare differences among those with different levels of nicotine dependence, and we used an ordinal logistic regression analysis to investigate the influences related to nicotine dependence. RESULTS: This study included 874 smokers, with 78.5% having mild nicotine dependence, 11.7% having moderate dependence, and 9.84% having severe dependence. Univariate analysis showed that smokers with severe dependence had lower education levels, higher prevalence of chronic diseases, more frequent alcohol consumption, and poorer family functioning compared to those with mild to moderate dependence. Ordinal logistic regression analysis showed that poorer general functioning scores (OR = 1.087, 95% CI: 1.008-1.173, P = 0.030), poorer behavioral control (OR = 1.124, 95% CI: 1.026-1.232, P = 0.012), more quit attempts, frequent alcohol consumption, and longer smoking duration may be associated with a higher likelihood of developing severe nicotine dependence. The older age of starting smoking and higher education level may be associated with a lower likelihood of developing severe nicotine dependence. However, it is important to note that the cross-sectional nature of this study precludes the determination of causal relationships. CONCLUSIONS: This study finds that heavy nicotine dependence in smoking fathers is associated with risky behaviors and demographics such as longer smoking duration and frequent alcohol consumption. Targeted smoking cessation interventions are crucial for this group, taking these specific factors into consideration. Family functioning, particularly general functioning and behavioral control, may also be linked to nicotine dependence, indicating the need for further research in this area.


Subject(s)
Smoking Cessation , Tobacco Use Disorder , Humans , Tobacco Use Disorder/epidemiology , Cross-Sectional Studies , Smoking/epidemiology , Tobacco Smoking
2.
Front Pharmacol ; 14: 1072917, 2023.
Article in English | MEDLINE | ID: mdl-36925637

ABSTRACT

Background: Over-the-counter (OTC) drugs facilitates residents self-medication. However, inappropriate self-medications have become a serious problem in China and even all over the world. Objectives: To make an investigation on the current status of Chinese residents' self-medication behaviors and important considerations, and to explore the factors related to the considerations of drug efficacy and safety. Design: A quantitative, cross-sectional study. Methods: Multi-stage sampling was used to conduct a cross-sectional investigation in China 22 provinces, 5 autonomous regions and 4 municipalities directly under the Central Government. State that an interviewer-administrated questionnaire, was used for data collection. The questionnaire that was used in the investigation included demographic sociological characteristics, health literacy scale-short form (HLS-SF), the 10-item Big Five Inventory (BFI-10), the EuroQol-5D visual analogue scale (EQ-5D VAS), self-medication status and important considerations when self-medicating. Descriptive statistics were performed, and the Chi-square test was used for univariate analysis. Log-binomial regression was used for multivariate analysis on whether residents regard drug efficacy or safety as an important consideration. Results: 9256 respondents were included in the data analysis. The self-medication rate of Chinese adults was as high as 99.1%. Paracetamol and other analgesics were the most common types of OTC medication that respondents purchased, followed by vitamins/minerals. Medical staff recommendations, drug safety and efficacy were the top three important considerations. The residents in the east, central and western regions who consider safety is 63.5%, 61.5%, and 66.8% respectively. The proportion of curative effect was 60.2%, 55.7%, and 61.4% respectively. Log-binomial regression showed that western respondents, retired people, those who mainly used ways including basic medical insurance for employees, commercial medical insurance, free medical treatment to cover their medical cost, respondents with high neuroticism, high health literacy were more likely to consider drug safety as an important factor (p < 0.05). Eastern respondents, employed, main way of medical expenses borne was Out-of-pocket Payment, those with chronic disease were more likely to consider drug efficacy as an important factor (p < 0.05). Female, respondents with high levels of agreeableness, conscientiousness, openness, and self-rated health status were more likely to regard both drug safety and efficacy as important considerations (p < 0.05). Conclusion: Self-medication is practiced by most Chinese adults. Whether Chinese adults take drug efficacy or safety as an important consideration is related to their demographic and sociological characteristics, Big Five personality characteristics, health literacy and self-assessed health status. There is a need to strengthen the management of OTC drugs and public education about self-medication.

3.
J Aging Soc Policy ; 35(4): 463-485, 2023 Jul 04.
Article in English | MEDLINE | ID: mdl-35969515

ABSTRACT

Holding large conferences and events usually encourages the corresponding government to upgrade the host city. For this process, incorporating additional costs to increase accessibility for the elderly is a feasible means for a city to develop in an age-friendly manner. Providing evidence-based reports to policy makers is conducive to implementing the policies of age-friendly cities. This study used the scenario method to simulate the effect of promoting the "age-friendly cities" strategy on residents' psychological capital and social engagement (SE). We found that promoting the construction of age-friendly cities can significantly improve residents' psychological capital and SE and that residents from all age groups can benefit. This paper provides an economical means to influence policymakers through evidence-based reports in promoting the development of age-friendly cities.


Subject(s)
Policy , Social Participation , Humans , Aged , Cities , World Health Organization , Costs and Cost Analysis
4.
BMC Public Health ; 22(1): 1098, 2022 06 01.
Article in English | MEDLINE | ID: mdl-35650608

ABSTRACT

BACKGROUND: Under the outbreak of Coronavirus disease 2019 (COVID-19), a structural equation model was established to determine the causality of important factors that affect Chinese citizens' COVID-19 prevention behavior. METHODS: The survey in Qingdao covered several communities in 10 districts and used the method of cluster random sampling. The research instrument used in this study is a self-compiled Chinese version of the questionnaire. Of the 1215 questionnaires, 1188 were included in our analysis. We use the rank sum test, which is a non-parametric test, to test the influence of citizens'basic sociodemographic variables on prevention behavior, and the rank correlation test to analyze the influencing factors of prevention behavior. IBM AMOS 24.0 was used for path analysis, including estimating regression coefficients and evaluating the statistical fits of the structural model, to further explore the causal relationships between variables. RESULTS: The result showed that the score in the prevention behavior of all citizens is a median of 5 and a quartile spacing of 0.31. The final structural equation model showed that the external support for fighting the epidemic, the demand level of health information, the cognition of (COVID-19) and the negative emotions after the outbreak had direct effects on the COVID-19 prevention behavior, and that negative emotions and information needs served as mediating variables. CONCLUSIONS: The study provided a basis for relevant departments to further adopt epidemic prevention and control strategies.


Subject(s)
COVID-19 , Asian People , COVID-19/epidemiology , COVID-19/prevention & control , China/epidemiology , Cognition , Humans , Surveys and Questionnaires
5.
Front Public Health ; 10: 1042167, 2022.
Article in English | MEDLINE | ID: mdl-36711410

ABSTRACT

Objective: This study aimed to assess changes in joint range of motion (ROM) and knee joint function between patients who received the mobile health-based intervention and those who received regular care at 2 and 6 weeks after anterior cruciate ligament (ACL) reconstruction to provide better interventions in the future. Methods: Patients who underwent ACL reconstruction were randomized into the experimental [Mobile health-based intervention (MHI); n = 62] and control (CON) groups (n = 63). The CON group underwent home-based rehabilitation exercise following the paper rehabilitation schedule, while the intervention group received additional mobile health-based education at weeks 1-6 after surgery. ROM, thigh circumference difference, and flexion pain were the primary outcomes. The secondary outcomes were the international knee documentation committee knee evaluation form (IKDC) scores and rehabilitation compliance scores. All the outcomes were measured 1 day before surgery as references and at 2 and 6 weeks after surgery. Results: There was no statistical difference in the patients' ROM, thigh circumference difference, and VAS scores at the 2-week follow-up. At the 6-week follow-up, the ROM of the affected leg was (118.1 ± 20.5)° in the CON group and (126.6 ± 20.5)° in the MHI group, and the difference was statistically significant (P = 0.011). The difference in thigh circumference was 3.0 (2.0, 3.5) cm in the CON group and 2.5 (1.0, 3.0) cm in the MHI group. The difference was statistically significant (P < 0.001). The VAS score in the CON group was 3.0 (2.0, 4.0), and the MHI group was 2.5 (1.0, 3.0). The difference was statistically significant (P < 0.05). At the 6-week follow-up, the compliance score of patients in the MHI group was significantly higher than that in the CON group (P = 0.047, ß = 2.243, 95%CI: 0.026-4.459). There is no statistically significant difference in IKDC scores. Conclusion: Mobile health-based intervention positively affected patients undergoing ACL reconstruction surgery, particularly in improving the clinical outcome indicators of the knee joint.


Subject(s)
Anterior Cruciate Ligament Injuries , Anterior Cruciate Ligament Reconstruction , Telemedicine , Humans , Anterior Cruciate Ligament Injuries/surgery , Anterior Cruciate Ligament Injuries/rehabilitation , Treatment Outcome , Knee Joint/surgery , Anterior Cruciate Ligament Reconstruction/rehabilitation
6.
Beijing Da Xue Xue Bao Yi Xue Ban ; 46(2): 242-6, 2014 Apr 18.
Article in Chinese | MEDLINE | ID: mdl-24743814

ABSTRACT

OBJECTIVE: To investigate salt-restriction behavior and explore related determinants among Beijing residents, so as to provide scientific basis for salt-restriction intervention. METHODS: The health belief model (HBM) was applied in designing the questionnaire, in which respondents' demographic characteristics, salt-restriction behavior, knowledge on hypertension, perceived susceptibility to hypertension, perceived severity of hypertension, perceived benefits of salt-restriction, perceived subjective barriers of salt-restriction, perceived objective barriers of salt-restriction, self-efficacy and cues to action were measured. Altogether 799 residentsresponsible for cooking in Xicheng district (396 urban residents) and Shunyi district (403 rural residents) in Beijing were investigated by the questionnaire, salt intake follow up, and 24-hour urinary sodium (24HUNa) determination. RESULTS: In the study, 54.0% (214/396) of urban respondents and 26.3% (106/403) of rural respondents used a salt-restriction-spoon with high frequencies (everyday and often), while 27.5% (109/396) and 12.4% (50/403) used it correctly. The daily salt intake was (5.85±4.17) g and (7.74±4.67) g, and the 24HUNa was (113.70± 72.57) mmoL and (212.18±105.01) mmoL for urban and rural respondents, respectively. Perceived objective barriers of salt-restriction was animportant determinant of salt-restriction behavior for both the rural (OR=0.92; 95%CI: 0.88-0.96; P<0.01) and urban respondents (OR=0.87;95%CI: 0.83-0.91;P<0.01), which was perceived obviously more by rural respondents than by urban ones. Another important determinant of rural respondents' salt-restriction behavior was the owning status of salt-restriction-spoon (OR=2.18;95%CI: 1.04-4.57;P=0.04). CONCLUSION: It is necessary to improve current salt-restriction-spoon, enhance its owning rate,and popularize its correct way of using, especially among rural residents.


Subject(s)
Health Behavior , Health Knowledge, Attitudes, Practice , Rural Population , Sodium, Dietary/administration & dosage , Urban Population , China , Humans , Hypertension/prevention & control , Surveys and Questionnaires
7.
Am J Infect Control ; 42(3): e37-8, 2014 Mar.
Article in English | MEDLINE | ID: mdl-24581027

ABSTRACT

This cross-sectional survey assessed both risk and prevention of health care workers to bloodborne virus transmission in 2 hospitals in Beijing. The identified discrepancy between the high level of occupational blood exposure and suboptimal compliance with standard precautions underscores the urgent need for interventions to enhance occupational safety of health care workers in China.


Subject(s)
Blood-Borne Pathogens , Guideline Adherence/statistics & numerical data , Health Personnel , Infection Control/methods , Occupational Diseases/epidemiology , Occupational Diseases/prevention & control , Occupational Exposure/statistics & numerical data , Adult , China , Cross-Sectional Studies , Female , Humans , Male , Middle Aged , Young Adult
8.
Beijing Da Xue Xue Bao Yi Xue Ban ; 45(6): 933-7, 2013 Dec 18.
Article in Chinese | MEDLINE | ID: mdl-24343077

ABSTRACT

OBJECTIVE: To explore the effect of sleep duration including napping, night sleep and total sleep duration on cognitive functions among preschoolers. METHODS: The samples consisted of 94 preschoolers, aged from 2.58 to 6.75 years, from Hangzhou and Beijing. Peabody Picture Vocabulary Test-Revised (PPVT-R), Picture Deletion Task for Preschoolers (PDTP) and Spatial Working Memory Test were applied to assess the cognitive functions of these preschoolers. Basic demographic information and sleep information were collected with self-made questionnaires. RESULTS: The results of the present study indicated that among all the participants, there were significant grade differences in napping duration and total sleep duration (F0.05(3, 90)=6.346, P=0.001; F0.05(3, 90)=2.925, P=0.038). The total sleep duration was decreased with age. However, the night sleep duration was not changed significantly with age. The correlations between the night sleep and total sleep duration and the scores of attention and working memory were significantly positive (r=0.202-0.282). No significant correlations were noted between the napping and all the scores of cognitive tests. The regression analysis showed that the total sleep duration especially the night sleep duration could well explain the variance of attention and working memory. CONCLUSION: Total sleep duration, especially night sleep duration may have great impact on preschoolers' cognitive functions, such as attention and working memory. Enough sound night sleep may help to promote the cognitive functions of the target population.


Subject(s)
Cognition/physiology , Sleep/physiology , Attention/physiology , Child , Child, Preschool , Female , Humans , Male , Memory/physiology , Polysomnography , Random Allocation
9.
Zhonghua Yu Fang Yi Xue Za Zhi ; 46(3): 237-40, 2012 Mar.
Article in Chinese | MEDLINE | ID: mdl-22800595

ABSTRACT

OBJECTIVE: This study aims to survey respiratory infectious disease related health literacy (RIDHL) and health behavior (RIDHB) among residents in Fengtai district, Beijing, analyze impact factors of RIDHL , explore the association between RIDHL and RIDHB. METHODS: Multistage sampling was employed and 1100 respondents were surveyed by self-designed questionnaires, which including social-demographic characteristics and evaluation of RIDHL and RIDHB. The survey results were described, the impact factors of RIDHL and the association between RIDHL and RIDHB were analyzed by analysis of variance or covariance. RESULTS: A total of 998 qualified questionnaires were recollected with the effective rate of 90.7%. The respondents aged from 15 to 65, scored (71.3 +/- 19.0) points in RIDHL test. Of those respondents, 25.7% (256/998), 43.2% (432/998) and 31.1% (310/998) were evaluated as low( <60 points), medium (60 - 85 points), and high level ( > 85 points) of RIDHL, respectively. There were significant difference in RIDHL scores between registered and non-registered residents, who scored (74.1 +/- 18.9) and (68.4 +/- 18.8) points, respectively (P < 0.01). RIDHL sections were ranked as audiovisual (77.6%, 4647/5988), internet using (75.2%, 2251/2994), reading (74.6%, 3724/4990), map using (68.3%, 4090/5988) and quantitative (65.5%, 5230/7984) according to the accurate rates from high to low. Analysis of variance or covariance showed that RIDHL scores were significantly different among respondents with different ages, nationalities, educational levels, occupations, and incomes (P < 0.01), yet no significant differences among those with different genders and marital status (P > 0.05). Respondents scored (69.7 +/- 15.5) points in RIDHB test. The RIDHB scores ((64.5 +/- 15.0), (70.4 +/- 15.6), (72.5 +/- 14.9) points, respectively) increased among residents with low, medium and high level of RIDHL (P < 0.01). CONCLUSION: Residents in Fengtai district, Beijing possessed medium level of RIDHL. The non-registered residents showed lower RIDHL than registered residents. Ages, nationalities, educational levels, occupations, and incomes were impact factors of RIDHL. People with higher level of RIDHL also showed a higher level of RIDHB.


Subject(s)
Health Behavior , Health Literacy , Respiratory Tract Infections/prevention & control , Adolescent , Adult , Aged , China/epidemiology , Communicable Diseases/epidemiology , Female , Humans , Male , Middle Aged , Respiratory Tract Infections/epidemiology , Surveys and Questionnaires , Young Adult
10.
Intern Med ; 51(6): 639-42, 2012.
Article in English | MEDLINE | ID: mdl-22449675

ABSTRACT

Myopericytoma is a benign tumor composed of cells that show apparent differentiation towards putative perivascular myoid cells called myopericytes. To date, only a small number of series describing myopericytomas have been reported. Here, we report a case of pulmonary myopericytoma presenting as multiple nodules in a 26-year-old man. Clinical presentation, radiological features and histopathologic findings of the patient are also discussed. The result of the histology combined with the immunohistochemical analysis led to a diagnosis of myopericytomas. To our knowledge, this is the first report of myopericytoma showing pulmonary involvement.


Subject(s)
Lung Neoplasms/diagnosis , Neoplasms, Multiple Primary/diagnosis , Pericytes/pathology , Soft Tissue Neoplasms/diagnosis , Actins/analysis , Adult , Antigens, CD34/analysis , Biomarkers, Tumor/analysis , Biopsy , Diagnosis, Differential , Humans , Lung Neoplasms/chemistry , Lung Neoplasms/diagnostic imaging , Lung Neoplasms/pathology , Lung Neoplasms/surgery , Magnetic Resonance Imaging , Male , Neoplasms, Multiple Primary/chemistry , Neoplasms, Multiple Primary/diagnostic imaging , Neoplasms, Multiple Primary/pathology , Neoplasms, Multiple Primary/surgery , Platelet Endothelial Cell Adhesion Molecule-1/analysis , Pneumonectomy , Soft Tissue Neoplasms/chemistry , Soft Tissue Neoplasms/diagnostic imaging , Soft Tissue Neoplasms/pathology , Soft Tissue Neoplasms/surgery , Tomography, X-Ray Computed , Vimentin/analysis
11.
Beijing Da Xue Xue Bao Yi Xue Ban ; 43(3): 386-90, 2011 Jun 18.
Article in Chinese | MEDLINE | ID: mdl-21681269

ABSTRACT

OBJECTIVE: To explore the characteristics of resilience of urban migrant children and rural left-behind children of Chinese farmer workers and to figure out the discrepancy between them. METHODS: The samples consisted of 1 391 primary students and middle school students from Chengdu, Guangyuan, Yibin, and Mianyang in Sichuan Province. The revised version of the Healthy Kids Resilience Assessment was used for the measurement of resilience. And ANOVA was performed for data analysis. RESULTS: The results of the present study indicated that among all the junior high students, urban migrant children got a significantly lower score of resilience (128.11±21.70) than rural left-behind children (135.61±22.77) and the control group (132.87±23.22), F(0.05 (2, 884))=8.076, P<0.001. And migrant children got lower scores on three external protective factors of resilience-family, school, community as well as on resilience traits than left-behind children and the control group (Family: F(0.05(2, 884))=7.820, P<0.001; School: F(0.05(2, 884))=5.041, P=0.007; Community: F(0.05(2, 884))=9.261, P<0.001; Resilience traits: F(0.05(2, 884))=3.510, P=0.030). No significant difference was noted between left-behind children and control group. Gender difference and grade difference were noted for each group. CONCLUSION: The resilience of migrant children was not so good as non-migrant children. Migrant children were enjoying less intimate interpersonal relationship in their schools, their families as well as their community, and they could get less psychological support from the external environment, so that migrant children could not develop some resilience traits to promote the sound development of themselves. Suggestions for intervention were also discussed.


Subject(s)
Health Status , Interpersonal Relations , Rural Population/statistics & numerical data , Transients and Migrants/psychology , Adolescent , Child , Child Care , China , Codependency, Psychological , Female , Humans , Male , Parent-Child Relations , Psychological Tests , Social Support , Socioeconomic Factors
12.
Beijing Da Xue Xue Bao Yi Xue Ban ; 42(3): 330-4, 2010 Jun 18.
Article in Chinese | MEDLINE | ID: mdl-20559411

ABSTRACT

OBJECTIVE: To explore the relationship between lifestyle, self-esteem and life satisfaction among Chinese adolescents. METHODS: 10 899 adolescents in middle schools and colleges from 9 provinces in China were investigated by using Chinese Adolescent Lifestyle Scale (CALS), Rosenberg Self-Esteem Scale (SES). RESULTS: The distribution of adolescents in the four groups divided by lifestyle and life satisfaction scores were different regarding the area and grade of these students(chi(2)=248.93, P<0.01;chi(2)=568.53, P<0.01). A high percentage of adolescents in cities (58.9%) reported a healthy life style with high life satisfaction while most adolescents in rural areas (58.9%) reported poor life styles with little satisfaction. A high percentage of junior high school students (61.8%) reported a healthy life style with high life satisfaction, but this percentage among senior high school and college students was down to 48.5% and 21.3% respectively. About 7.6% of senior high school students reported a healthy life style but poor satisfaction, a little higher than that of junior high school students (4.1%) and college students (3.6%). Moreover, there were 71.6% college students reported that they lead a poor life style with little satisfaction. The lifestyle is significantly correlated with self-esteem (r=0.472, P<0.01) and life satisfaction(r=0.636, P<0.01), and self-esteem is also significantly correlated with life satisfaction (r=0.450, P<0.01). self-esteem was the mediator of the other two parameters. CONCLUSION: The lifestyle predicts life satisfaction through self-esteem. Area and grade differences have to be taken into consideration when introducing programs on health promotion, and attention should be attached to the influence of psychological factors.


Subject(s)
Life Style , Mental Health/statistics & numerical data , Personal Satisfaction , Self Concept , Surveys and Questionnaires , Adolescent , Child , China , Female , Humans , Male , Rural Population , Sampling Studies , Students , Urban Population , Young Adult
13.
Beijing Da Xue Xue Bao Yi Xue Ban ; 41(2): 129-34, 2009 Apr 18.
Article in Chinese | MEDLINE | ID: mdl-19377616

ABSTRACT

OBJECTIVE: To establish and validate a new model of health belief model(HBM) combined with theory of planned behavior(TPB). METHODS: Path analysis was applied to set up a new model predicting iron-fortified soy sauce consumption behavior using baseline survey data among women in rural and urban areas in Beijing, and the model was validated in follow-up survey. RESULTS: It was proved that health values had powerful direct effect on behavior identity and had relatively strong direct effect on attitudes towards behavior; behavior identity had strong effect on behavior barriers, mostly in a direct way, and on behavior intention in a direct or indirect way; control belief was an important external factor influencing behavior intention; behavior intention was the most direct and most important one of factors influencing actual behavior; and convenience to buy was an important external factor influencing actual behavior. CONCLUSION: The integrated model of TPB and HBM explains behavior better and may be attempted in other similar researches.


Subject(s)
Health Knowledge, Attitudes, Practice , Health Promotion/methods , Models, Psychological , China , Female , Health Education , Humans , Iron, Dietary/administration & dosage , Social Behavior
14.
Beijing Da Xue Xue Bao Yi Xue Ban ; 39(2): 132-5, 2007 Apr 18.
Article in Chinese | MEDLINE | ID: mdl-17440585

ABSTRACT

OBJECTIVE: To expose the vulnerability of HIV/AIDS infection among youth out of schools in a holistic view through understanding lifestyle, peer relations, awareness of HIV/AIDS, and HIV/AIDS prevention service of the youth. METHODS: A cross-sectional survey based on the collective random sampling was conducted among 584 youth out of schools with or without a job in Anshan City, Liaoning Province in October 2005. RESULTS: The awareness rate of HIV/AIDS among youth out of schools was 58.9%, and 65.6% of the subjects never accepted any health service related to HIV/AIDS prevention. 42.6% of the respondents had sexual experience, and the rate of having sexual experience among males (62.3%) was higher than that of females (37.7%). And 30.5% of the youth seldom or never used a condom, 51.2% of the youth having sex didn't use a condom in his/her last sex. 28.2% of the youth having sex were ever involved in commercial sex relations. 22 of the respondents (3.8%) had the experience of drug substance, the rate of having sex experience among youth who used the substance was higher than that of the youth who never used the substance. Smoking, alcohol abusing, visiting recreation places, high month consumption were the risk factors of pre-marital sex, and high awareness of HIV/AIDS was the protective factor of pre-marital sex. CONCLUSION: The youth out of schools were vulnerable in sexual behavior, substance use, peer influencing, social environment, and HIV/AIDS prevention service in terms of HIV/AIDS infection.


Subject(s)
Condoms/statistics & numerical data , HIV Infections/epidemiology , Health Knowledge, Attitudes, Practice , Sexual Behavior/statistics & numerical data , Acquired Immunodeficiency Syndrome/epidemiology , Acquired Immunodeficiency Syndrome/psychology , Adolescent , Adult , China/epidemiology , Cross-Sectional Studies , Female , HIV Infections/psychology , Humans , Male , Risk Assessment , Sexual Partners/psychology , Substance-Related Disorders
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