Mortality burden from seasonal influenza in Chongqing, China, 2012-2018.

Purpose: To estimate influenza-associated excess mortality rates (EMRs) in Chongqing from 2012 to 2018.

Methods: We obtained weekly mortality data for all-cause and four underlying causes of death (circulatory and respiratory disease (CRD), pneumonia and influenza (P&I), chronic obstructive pulmonary disease (COPD) and ischemic heart disease (IDH)), and influenza surveillance data, from 2012 to 2018. A negative-binomial regression model was used to estimate influenza-associated EMRs in two age groups (<65 years and ≥65 years).

The burden of influenza and pneumonia mortality attributable to absolute humidity among elderly people in Chongqing, China, 2012-2018.

Objective: To examine the association between absolute humidity (AH) and influenza and pneumonia (P&I) mortality, and to quantify P&I mortality burden attributable to non-optimum AHs among elderly people aged ≥65 years in Chongqing, the largest municipality of China.

Methods: Daily data of P&I mortality from 2012 to 2018, and the contemporaneous meteorological data in the study area were collected. Distributed lag non-linear model (DLNM) was applied to estimate the non-linear and delayed effects of absolute humidity (AH) on P&I mortality.

[An investigation on the need, the utilization, and the influencing factors of dental services for pre-school children in selected areas in Chongqing province].

Objective: The aim of this study is to survey the need, the utilization, and the influencing factors of dental services for children in selected areas in Chongqing province by investigating their oral health status. The survey will provide references for preventive oral health care in targeted Chongqing areas, which may improve the level of oral health among pre-school children.

Methods: Random cluster sampling was utilized according to standards of the Fourth National Oral Health Epidemiological sampling survey, and 1 300 children between the ages of three and four years old from 24 kindergartens in 12 subdistricts of three areas in Chongqing were interviewed for free dental checkups and to participate in the survey.

[Effect of comprehensive control and prevention for chronic disease in demonstration plot of Chongqing].

Objective: To evaluate the effect of comprehensive control and prevention for chronic diseases in demonstration plot of Chongqing.

Methods: Residents were enrolled through multi-stage stratified random sampling method from 17 districts or counties which had successfully established demonstration plots and 21 districts or counties which had not established demonstration plots (non-demonstration plot for short) yet on May, 2012. Questionnaire was designed to survey awareness of health knowledge, health behaviors and utilization of health supportive tools.

[A respondent-driven sampling survey on HIV and risk factors among men who have sex with men in Chongqing].

Objective: To examine HIV prevalence and related risk factors among men who have sex with men (MSM) in Chongqing, and to explore the feasibility of using respondent-driven sampling (RDS) in the survey.

Methods: Based on results from formative research, a RDS survey was designed and conducted to collect demographic, behavioral and serologic data. RDSAT was used to calculate point estimation and confidence intervals.

[HIV infections and heterosexual behaviors among men who have sex with men in Chongqing municipality, China].

Objective: To understand the prevalence and risk factors for both HIV infection and prevalence rates of syphilis infection among men who exclusively have sex with men (MSM/M) or with both men and women (MSM/W) in Chongqing municipality, China.

Methods: Cross-sectional studies were conducted in Chongqing. Structured questionnaire-based interviews were conducted to provide information about demographic characteristics, behavior, HIV related health services and sexual transmitted infections (STIs).

[Surveillance on HIV-1 incidence among men who have sex with men in Chongqing, China, 2006 - 2008].

Objective: To estimate HIV-1 incidence among men who have sex with men (MSM) in Chongqing and to provide reasonable evidence for intervention strategy.

Methods: Using "snowballing" and convenient sampling, 2989 MSM were recruited during 2006 - 2008. BED-CEIA was applied to the leftover blood samples to estimate the crude and adjusted HIV-1 incidence rates.

[HIV and syphilis infections among men who have sex with men in Chongqing municipality, China].

Objective: To examine the prevalence and predictors of HIV and syphilis infections among men who have sex with men (MSM) in Chongqing municipality, China.

Methods: Cross-sectional studies were conducted in three districts of Chongqing municipality from July to September, 2006 and 2007, respectively. Questionnaire-based interviews were conducted to provide information on demographic characteristics, behaviors on sex and drug use, and HIV and sexually transmitted diseases (STD) related health services.

[Study on the effect of intervention about acquired immunodeficiency syndrome among men who have sex with men].

Objective: To study the outcomes of AIDS intervention programs and to provide scientific evidence for developing pertinent strategy on intervention among men who have sex with men (MSM).

Methods: MSM were recruited through snowballing and investigated by face to face interview in 2006 and 2007 respectively. SPSS 12.

[HIV prevalence and its associated factors among men who have sex with men in Chongqing].

Objective: To examine HIV prevalence and its associated factors among men who have sex with men (MSM) and provide the evidence for the intervention program among MSM.

Methods: A face-to-face questionnaire interview was conducted among MSM recruited by snowball sampling method in Yuzhong, Jiulongpo and Shapingba district of Chongqing from July to September, 2007. Totally, 1044 MSM were recruited.

[Drug resistance among recent HIV-1 infected men who have sex with men in Chongqing municipality of China].

Objective: To evaluate the situation of HIV prevalence, incidence and drug resistance (DR) among recent HIV infected men who have sex with men(MSM) during the year of 2006.

Methods: A transect investigation was conducted through snowballing to recruite volunteers. HIV infected status was confirmed by ELISA and Western Blot (WB), the recent infected within 155 days were confirmed by BED-Capture ELISA Assay (BED-CEIA), which based on the principle that characteristics of the initial HIV antibody response in recent infections differs from those of established or long-term infections either by antibody titer, proportion, specificity, isotype or avidity.