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Biomedical subjects

A W Pak

Publications and source records attributed to A W Pak.

6 recordsLinked to original sources
PubMed2001

Lessons for surveillance in the 21st century: a historical perspective from the past five millennia.

This paper reviews some major epidemics in the past 5,000 years in human history and derives 12 lessons in the context of epidemiologic surveillance. The corresponding 12 challenges proposed in this paper could be used to guide us in building a better and more comprehensive surveillance system in the 21st century. This will be achieved by: continuing the evolvement and improvement of surveillance; maintaining on an ongoing basis; being systematic; being population-based; including risk and intervention indicators in the data base; more efficient data analysis; stimulating etiologic research; improving forecasting capability; linking to development of intervention; evaluating the intervention; better ways of information dissemination; and dissemination without prejudice.

Data Collection↗
PubMed1996

Health and social costs of tobacco use in Ontario, Canada, 1979 and 1988.

STUDY OBJECTIVE: This study aimed to estimate the health and social costs of tobacco use in Ontario, Canada. DESIGN: This was a cost-benefit analysis based on cross sectional data in 1988, stratified by age and sex, using an attributable risk model. The total cost of the consequences of tobacco use in the society included those costs attributed to extra deaths, disability, hospitalisation, physician visits, and fire losses, from tobacco use. PARTICIPANTS: The general population of Ontario, Canada. MAIN RESULTS: The total cost of tobacco use in Ontario, Canada in 1988 was estimated to be $3.623 billion--$721 million more than the total customer expenditure on tobacco products. Tobacco use was also found to be responsible for 14% of all adult deaths, 5% of all adult disability days, 14% of all days of hospitalisation, and 3% of all physician visits. Compared with previous results for Ontario (1979) the cost of the consequences of tobacco use had increased by about 25% and consumer expenditure by about 35% over the period, while the excess of consequences over expenditure fell slightly by about 3%. CONCLUSIONS: The annual excess of the social costs of tobacco use over total consumer expenditure is staggering. It is suggested that similar cost-benefit analysis of smoking be carried out at regular intervals to monitor smoking trends in the society, to estimate health and social costs, and to provide information for the setting of targets for tobacco control and healthy public policies.

Adolescent↗
PubMed1996

A nested case-control study on alcohol drinking, tobacco smoking, and cancer.

A nested case-control study was conducted to investigate the effect of alcohol consumption and tobacco smoking on cancers of various sites. The study population was based on 887 cases and 1774 controls, selected from a cohort of 17,200 male participants of a gastric mass survey in 1984, who were followed up for 9 years by the Chiba Cancer Registry, Japan. The odds ratio (OR) of colon cancer was significantly elevated in alcohol drinkers of one cup of sake-equivalent (27 ml ethanol) per day (OR = 3.5), and three cups of sake-equivalents per day (OR = 3.2) compared with nondrinkers, but its dose-response was not clear since two cups of sake-equivalents per day had an OR of 1.9, which was nonsignificant. Cancer risk elevation was especially predominant in the proximal colon, again showing no dose-response: OR = 30.7 for one cup of sake-equivalent per day, OR = 12.4 for two or more cups per day. Lung cancer showed a dose-response relationship with alcohol consumption, independent of tobacco smoking. A synergistic effect of alcohol intake and tobacco smoking was observed for upper aerodigestive tract and bladder cancer. Both alcohol drinking and tobacco smoking were found not to be associated with stomach cancer.

Alcohol Drinking↗
PubMed1990

Effects of mailing strategies on response rate, response time, and cost in a questionnaire study among nurses.

We conducted a pilot study to determine the most efficient mailing strategy for a postal questionnaire study among nurses in Ontario, Canada. Five mailing strategies involving types of stamps on the return envelopes were considered: no stamp, business-reply stamp, metered stamp, small regular stamp, and large commemorative stamp. We found that paper stamps, especially large commemorative stamps, on return envelopes increased the response rate and reduced the response time, as compared with other mailing strategies. Business-reply stamps had the lowest cost per response received and a low total cost.

Evaluation Studies as Topic↗