Interaction of Helicobacter pylori Infection with Waterpipe Tobacco Smoking in the Development of Stomach Cancer in Vietnamese Men.

Objective: This study aims to examine the joint effect of H. pylori infection and tobacco smoking on the development of stomach cancer among Vietnamese men.

Methods: A total of 80 stomach cancer cases and 146 controls were recruited in a case-control study conducted in a general hospital.

Fruit and Vegetable Intake and Stomach Cancer among Male Adults: A Case-Control Study in Northern Viet Nam.

Objective: This study investigated the association between fruit and vegetable intake and stomach cancer, with considering the impacts of Helicobacter pylori (H. pylori) infection and tobacco smoking.

Methods: A case-control study featuring 80 male incident stomach-cancer cases and 146 male controls was conducted in a general hospital in Viet Nam.

Plasma phytoestrogens concentration and risk of colorectal cancer in two different Asian populations.

Background & Aims: To evaluate the relationship between phytoestrogen and colon cancer risk, we quantified plasma isoflavones (Genistein and Daidzein) and lignan (enterolactone) in a Korean nested case-control study and conducted replication study in a Vietnamese case-control study.

Methods: Study populations of 101 cases and 391 controls were selected from the Korean Multicenter Cancer Cohort which was constructed from 1993 to 2004. For replication study, Vietnamese hospital-based case-control subjects of 222 cases and 206 controls were selected from 2003 to 2007.

Evaluation of the Vietnamese A6 Mortality Reporting System: All-Cause Mortality.

There has been no systematic evaluation of Viet Nam's A6 mortality reporting system. An evaluation was undertaken in 3 provinces in Viet Nam. Deaths identified in the A6 system were compared with deaths identified by an independent consensus panel to determine the percentage completeness of the A6 system.

Seasonality in mortality and its relationship to temperature among the older population in Hanoi, Vietnam.

Background: Several studies have established a relationship between temperature and mortality. In particular, older populations have been shown to be vulnerable to temperature effects. However, little information exists on the temperature-mortality relationship in Vietnam.

Urinary 1-hydroxypyrene and 8-hydroxydeoxyguanosine levels among coke-oven workers for 2 consecutive days.

Objectives: This study evaluated the levels of exposure to polycyclic aromatic hydrocarbons (PAHs) and their relationship with oxidative DNA damage among Vietnamese coke-oven workers.

Methods: We collected urine from 36 coke-oven workers (exposed group) at the beginning and end of the shift on 2 consecutive days. We also collected urine from 78 medical staff (control group).

Evaluation of the Vietnamese A6 mortality reporting system: injury as a cause of death.

Background: Despite the fact that the A6 mortality reporting system has been operating for almost 20 years in Vietnam, there has been no systematic evaluation of the system. This study assesses the completeness, sensitivity and positive predictive value of the system in relation to injury related mortality.

Methods: Evaluation of the A6 system was undertaken in three (geographically distributed) provinces in Vietnam.

Cooking temperature, heat-generated carcinogens, and the risk of stomach and colorectal cancers.

Background: Food change due to cooking temperature and unrecognized heat-formed chemical carcinogens may impact on the risk of stomach and colo-rectal cancers. To test this hypothesis a case-control study was performed.

Methods: A total of 670 cases of stomach and colo-rectal cancers matched with 672 hospital controls for sex and -/+5 years age admitted to three hospitals in Hanoi city in the North Viet Nam from October 2006 to September 2007 were the subjects.

Development of a semi-quantitative food frequency questionnaire for dietary studies--focus on vitamin C intake.

The present work aimed to provide a basis for examination of intake of selected food items determined with a semi-quantitative food frequency questionnaire (SQFFQ) and planned-food selection (PFS). From February to July of 2003, ninety one cancer patients and 90 matched (same sex and age within 5 years) non-cancer patients were directly interviewed by trained interviewers using the designed questionnaire at the inpatient-department of Viet Duc hospital, Ha Noi City, Viet Nam. Study subjects consumed more SQFFQ-food items than PFS-food items, so that the latter method might not accurately reflect dietary habits regarding estimation of nutrient intake, especially vitamins.

Gastric and colo-rectal cancer mortality in Viet Nam in the years 2005-2006.

Background: The International Collaborative Epidemiological Study of Host and Environmental Factors for Stomach and Colorectal Cancers in Southeast Asian Countries (SEACs) has been conducted in Viet Nam from 2003 to 2008 on a case-control basis. For further effective primary prevention, we examined gastric and colorectal cancer mortality nationwide in eight regions of Viet Nam in 2005-06.

Methods: Both demographic data and lists of all deaths in 2005-06 were obtained from all 10,769 commune health stations in Viet Nam.

Population-based cancer survival in sites in Viet Nam.

Background: Very few population-based cancer survival studies have been performed in Viet Nam. The aim of the present study was to estimate observed and relative cancer survival rates in populations of Phu Tho, Hanoi and Hue city.

Methods: A retrospective-cohort study was performed for all 12 districts of Phu Tho province (semi-highland area in the north), eight districts of Hanoi city (Capital) and four districts of Hue city in central area).

Cancer mortality pattern in Viet Nam.

Background: Health information in general and cancer information in particular in Viet Nam is an basic data for decisions related to health planning prevent against cancer. However, very limited database of cancer information bas been available to date. The aim of the present study was to examine cancer mortality pattern nationwide in Viet Nam.

Anti-smoking initiative and decline in incidence rates of lung cancer in Viet Nam.

Viet Nam had the highest reported male smoking prevalence rate (72.8-74.3%) in the world in the 1990s.

Development of population-based cancer mortality registration in the North of Viet Nam.

Background: Regional cancer distributions provide useful pointers to potential environmental risk factors. Cancer death registration data are also basic for checking completeness of population-based registration of cancer incidence. The aim of the present project was to develop population-based cancer mortality registration in various regions in the North of Viet Nam.

Cancer mortality in a Hanoi population, Viet Nam, 1996-2005.

Background: Hitherto, cancer mortality data have not been available in Viet Nam, so that the real public health problem with this disease has yet to be addressed and recognized in the country with a population of over 80 million in South East Asia. The aim of the present pilot study was to examine cancer mortality in a commune population of Hanoi city, 1996-2005.

Methods: Cancer data was accessed from the database of the population-routine-based death registration performed by medical workers at commune health stations based on the guidelines of the Ministry of Health at Hanoi city.

Grand challenges in global health and the practical prevention program? Asian focus on cancer prevention in females of the developing world.

In response to the request for 'Breakthrough Questions' for 'Grand Challenges in Global Health' recently published in Nature, the Asian Pacific Organization for Cancer Prevention should focus its attention on what projects are of the highest priority for integration with its Practical Prevention Program (PPP). The most common female cancers in most of the countries of Asia are carcinoma of the breast, followed by the uterine cervix. While the incidences of breast adenocarcinomas are still generally lower than in the Western world they are rapidly increasing, and squamous cell carcinomas of the cervix are a major problem.

Estimate of the Incidence of Hepatocellular Carcinoma Among Carriers of HBsAg (+) in the General Population of Hanoi, Viet Nam from 1991-93.

Background: The estimated number of carriers of HBsAg (+) in the world significantly increased from 120 to 350 million from the 1970s to the 1990s. Eighty per cent of liver cancers are estimated to be due to chronic HBV infection. However, only limited data are available regarding liver cancer rates among carriers of HBsAg (+).

Pattern and Time Trends of Stomach Cancer in Asia from 1950-99.

Background: As there is a lack of data on stomach cancer disease in Asia, the aim of the present study was to examine patterns and time trends for this neoplasm in Asian countries. Methods: A descriptive study was designed to examine the cancer pattern and time trend and to calculate the annual change in mortality and incidence of stomach cancer at 5-year intervals. Data were derived from the WHO Mortality Database, and Cancer Incidence in Five Continents.

Estimates of cancer mortality in Hanoi and Ho Chi Minh City, Viet Nam in the 1990s.

As cancer mortality data is not available, a study regarding the real problem of cancer mortality is timely and urgent in Viet Nam. Therefore the aim of the present study was to calculate cancer mortality in the city of Hanoi and Ho Chi Minh. The correlation between cancer mortality to incidence ratios and relative survival probabilities for 23 cancer sites was estimated according to SEER (1973-97), then cancer mortality was calculated from the cancer incidence and cancer survival for 25 cancer sites in each city.