246 research outputs found
Selecting informative food items for compiling food-frequency questionnaires: comparison of procedures
The authors automated the selection of foods in a computer system that compiles and processes tailored FFQ. For the selection of food items, several methods are available. The aim of the present study was to compare food lists made by MOM2, which identifies food items with highest between-person variance in intake of the nutrients of interest without taking other items into account, with food lists made by forward regression. The name MOM2 refers to the variance, which is the second moment of the nutrient intake distribution. Food items were selected for the nutrients of interest from 2 d of recorded intake in 3524 adults aged 25–65 years. Food lists by 80 % MOM2 were compared to those by 80 % explained variance for regression on differences between the number and type of food items, and were evaluated on (1) the percentage of explained variance and (2) percentage contribution to population intake computed for the selected items on the food list. MOM2 selected the same food items for Ca, a few more for fat and vitamin C, and a few less for carbohydrates and dietary fibre than forward regression. Food lists by MOM2 based on 80 % of variance in intake covered 75–87 % of explained variance for different nutrients by regression and contributed 53–75 % to total population intake. Concluding, for developing food lists of FFQ, it appears sufficient to select food items based on the contribution to variance in nutrient intake without taking covariance into accoun
A prospective cohort study on Allium vegetable consumption, garlic supplement use, and the risk of lung carcinoma in The Netherlands
The association between the consumption of onions and leeks (vegetables belonging to the Allium genus), garlic supplements, and the risk of lung carcinoma was investigated in a large-scale prospective cohort study on diet and cancer in the Netherlands. The Netherlands Cohort Study was started in 1986 among 120,852 men and women, ages 55-69 years, by collecting information on usual diet and important life-style characteristics. After 3.3 years of follow-up, 550 incident lung carcinoma cases were observed. Information on Allium vegetable consumption was available for 484 lung carcinoma cases and 3123 members of a randomly sampled subcohort. In stratified analysis, a lower lung carcinoma risk was observed in the highest onion intake category [rate ratio (RR) = 0.65; 95% confidence interval, 0.45-0.95] compared to the lowest consumption category. After including other, dietary and nondietary, determinants of lung carcinoma in the multivariable models and using pack years for past and current smoking, instead of using smoking status categorized as never, ex-, and current smoking, the rate ratio in the highest intake category increased to 0.80 and was no longer significantly different from unity (95% confidence interval, 0.52-1.24). Leek consumption was not associated with risk for lung carcinoma (RR = 1.08; 95% confidence interval 0.80-1.45 in the highest intake category, compared to the lowest). No statistically significant trends in the rate ratios associated with increasing consumption of these vegetables were detected for lung carcinoma or the four histological subtypes. A higher lung carcinoma risk was observed for those subjects who used exclusively garlic supplements (RR = 1.78; 95% confidence interval, 1.08-2.92), compared to those not taking dietary supplements. A lower lung carcinoma risk was seen for those using garlic supplements together with any other supplement (RR = 0.93; 95% confidence interval 0.46-1.86) compared to those using any other supplement. In conclusion, we found no evidence of a relation between the consumption of onions or leeks and the risk of lung carcinoma or any of the histological subtypes. Garlic supplement use seems not associated with a lower risk of lung carcinoma
A prospective cohort study on consumption of alcoholic beverages in relation to prostate cancer incidence (The Netherlands).
Department of Epidemiology, Maastricht University, The Netherlands. [email protected] OBJECTIVES: To examine alcohol consumption in relation to prostate cancer incidence in the Netherlands Cohort Study. METHODS: At baseline in 1986, 58,279 men aged 55-69 years completed a self-administered questionnaire on diet, consumption of alcoholic beverages and other risk factors for cancer. For data processing and analyses the case-cohort approach was used. After 6.3 years of follow-up, 680 incident primary prostate cancer cases were available for analysis. RESULTS: In multivariate analyses adjusted for age, socioeconomic status and family history of prostate cancer, no association between total alcohol consumption, alcohol intake from beer and liquor and prostate cancer risk was found. Increased associations were found for alcohol from white wine and fortified wines compared to nondrinkers, but not for red wine. The RRs (95% CI) in the intake category of > or = 15 g/day were 3.3 (1.2-9.2) and 2.3 (1.2-4.7), respectively, after additional adjustment for total alcohol intake. There was, however, no significant trend in risk. Alcohol intake was more strongly related with localized than with advanced prostate tumors. CONCLUSION: Our results do not support an important role for alcohol in prostate cancer etiology. Nevertheless, for specific types of alcoholic beverages, particularly wines, a positive association was suggested which needs examination in further studies
Anthropometry and Pancreatic Cancer Risk: An Illustration of the Importance of Microscopic Verification
Using data collected of a large population-based cohort study, we studied the association between anthropometric factors and the risk of pancreatic cancer. Furthermore, we investigated whether these associations differ among microscopically confirmed pancreatic cancer (MCPC) cases and non-MCPC (NMCPC) cases. The Netherlands Cohort Study on Diet and Cancer started in 1986 (120,852 men and women) and uses the case-cohort methodology. After 13.3 years of follow-up, 446 pancreatic cancer cases (of which 65% was microscopically confirmed) and 4,774 subcohort members were available for analysis. The multivariable incidence rate ratio of MCPC of men was 1.10 per increment of 1 kg·m-2 (95% confidence interval, 1.04-1.18). Women had a rate ratio of MCPC of 1.08 (95% confidence interval, 1.03-1.13). Obese men [body mass index (BMI) ≥30 kg·m-2] had a 2.6-fold increased risk of MCPC compared with men with BMI 23 to 25 kg·m-2. For women, this increase in risk was 1.7-fold. Change in BMI between age 20 years and baseline was also associated with MCPC in both men and women. In men and women, none of these associations were observed for NMCPC, with the exception of the increased risk for pancreatic cancer in obese men. We observed statistically significant associations between both BMI, gain in BMI, and pancreatic cancer risk. These associations are observed only in MCPC and not in NMCPC. If MCPC and NMCPC had been considered as one group, the reported associations would not have been detected. These findings stress the need to evaluate heterogeneity among pancreatic cancer cases in etiologic studies. Copyright © 2007 American Association for Cancer Research
Alcohol consumption, cigarette smoking, and endometrial cancer risk: results from the Netherlands Cohort Study
OBJECTIVE: To examine the association between alcohol consumption, cigarette smoking, and endometrial cancer. METHODS: In 1986, the Netherlands Cohort Study was initiated. A self-administered questionnaire on dietary habits and other cancer risk factors was completed by 62,573 women. Follow-up for cancer was established by record linkage to the Netherlands Cancer Registry. RESULTS: After 11.3-years of follow-up, 280 incident endometrial cancer cases were available for analyses. In multivariate analysis, the rate ratio (RR) for alcohol users versus non-users was 1.06 (95% Confidence Interval (95% CI) = 0.78–1.43). There were neither dose-dependent trends nor associations with different types of beverages. The RR for former and current smokers versus never-smokers was 0.83 (95% CI = 0.58–1.20) and 0.59 (95% CI = 0.40–0.88), respectively. These estimates did not change significantly when body mass index (BMI) and age at menopause were added to the models. CONCLUSIONS: There is no association between alcohol consumption and endometrial cancer. Current smoking is associated with a reduced risk of endometrial cancer. This association is neither mediated by BMI nor by age at menopause
Anthropometry in relation to prostate cancer risk in the Netherlands Cohort Study
In the Netherlands Cohort Study, the authors investigated whether anthropometry is associated with prostate cancer risk. At baseline in 1986, 58,279 men aged 55-69 years completed a self- administered questionnaire on diet, anthropometry, and other risk factors for cancer. After 6.3 years of follow-up, 681 cases were available with complete data on height and weight at baseline, and for 523 cases, there were data for weight at age 20 years. In both age-adjusted and multivariate case-cohort analyses (adjusted for age, family history of prostate cancer, and socioeconomic status), height, body mass index (BMI; kg/m2), and lean body mass (kg) at baseline were not associated with prostate cancer risk. The rate ratios of prostate cancer for men with a BMI at age 20 of less than 19, 19-20.9, 21-22.9, 23-24.9, and 25 or greater were 1.00 (reference), 1.06, 1.09, 1.39, and 1.33, respectively (p for trend = 0.02). For gain in BMI from age 20 years to age of the cohort at baseline, an inverse trend in risk was found (p for trend = 0.01), which did not persist after additional adjustment for BMI at age 20 (p for trend = 0.07). In subgroup analyses, no clear associations between anthropometry and advanced prostate cancer were found. Our findings suggest that body composition in young adulthood may already exert an effect on later risk of prostate cancer
A case-cohort study on prostate cancer risk in relation to family history of prostate cancer.
We investigated the risk of prostate cancer in relation to a family history of prostate cancer in 58,279 men ages 55-69 years. We found 704 incident cases after 6.3 years of follow-up. Rate ratios and 95% confidence intervals for having an affected vs nonaffected father and brother were, respectively 1.44 (0.80-2.58) and 5.57 (1.61-19.26). We found no evidence for an increasing risk with an increasing percentage of affected family members. The associations we observed were stronger for cases diagnosed before age 70 compared with cases diagnosed after age 70 and for advanced compared with localized tumors
Совершенствование региональных целевых программ – инструмента управления социально-экономическим развитием Одесского региона и его конкурентоспособностью
Розглянуто регіональні цільові програми розвитку Одеського регіону; виявлено недоліки діючого підходу до розробки й оцінки програм на регіональному рівні; подано рекомендації щодо загальних підходів до програмного управління, експертизи проектів; запропоновано експертний метод оцінки ефективності цільових програм із точки зору управління процесом розробки та реалізацією програм, своєчасного прийняття рішень.
Ключові слова: регіональні цільові програми, соціально-економічний розвиток, регіон,
управління, конкурентоспроможність.Рассмотрены региональные целевые программы развития Одесского региона; выявлены недостатки действующего подхода к разработке и оценке программ на региональном уровне; даны рекомендации по общим подходам к программному управлению, экспертизе проектов; предложен экспертный метод оценки эффективности целевых программ с точки зрения управления процессом разработки и ходом реализации программ, своевременного принятия решений.
Ключевые слова: региональные целевые программы, социально-экономическое развитие, регион, управление, конкурентоспособность.The paper considers the regional target programs of Odessa region development. Shortcomings of the present approach to the development and evaluation of programs at the regional level are shown, recommendations on common approaches to program management and project appraisal are given; expert method for evaluating target programs is proposed from the view of managing the process of development and implementation of programs, timely decisions.
Keywords: regional target programs, socio-economic development, region, management, competitiveness
- …