| 1. |
- Wirfält, Elisabet, et al.
(författare)
-
Using cluster analysis to examine dietary patterns: nutrient intakes, gender, and weight status differ across food pattern clusters
- 1997
-
Ingår i: Journal of the American Dietetic Association. - 0002-8223. ; 97:3, s. 272-279
-
Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: This study explored the usefulness of cluster analysis in identifying food choice patterns of three groups of adults in relation to their energy intake. DESIGN: Food frequency data were converted to percentage of total energy from 38 food groups and entered into a cluster analysis procedure. Subjects in the emerging food group patterns were compared in terms of weight status, demographics, and the nutrition composition of their usual diet. SETTING: Data were collected as part of three studies in two US metropolitan areas using identical protocols. Participants were university employees (103 women and 99 men) who volunteered for a reliability study of health behavior questionnaires and moderately obese volunteers (223 women and 101 men) to two weight-loss studies who were recruited by newspaper advertisements. STATISTICAL ANALYSIS PERFORMED: Subjects were clustered according to food energy sources using the FASTCLUS procedure in the Statistical Analysis System. One-way analysis of variance and chi 2 analysis were then performed to compared the weight status, nutrient intakes, and demographics of the food patterns. RESULTS: Six food pattern clusters were identified. Subjects in the two clusters associated with high consumption of pastry and meat had significantly higher fat intakes (P = .0001). Subjects in two other clusters, those associated with high intake of skim milk and a broad distribution of energy sources had significantly higher micronutrient levels (P = .0001). Body mass index and the distribution of gender were also significantly different across clusters. CONCLUSIONS: The success of cluster analysis in identifying dietary exposure categories with unique demographic and nutritional correlates suggests that the approach may be useful in epidemiologic studies that examine conditions such as obesity, and in the design of nutrition interventions.
|
|
| 2. |
|
|
| 3. |
|
|
| 4. |
- Axelsson, Karin, et al.
(författare)
-
Eating problems and nutritional status during hospital stay of patients
- 1989
-
Ingår i: Journal of the American Dietetic Association. - 0002-8223 .- 1878-3570. ; 89:6, s. 1092-6
-
Tidskriftsartikel (refereegranskat)abstract
- Eating problems and nutritional status were studied in a consecutive series of patients who had had strokes. From this cohort, 32 subjects (mean age 73 years) with a hospital stay of 21 days or more are described. Eating problems were identified by direct participant observations of the patients' eating behavior, interviews on admission, inspections of the mouth, and discussions with the patients. Nutritional status was assessed by weight, triceps skinfold thickness (TSF), arm muscular circumference (AMC), plasma albumin, serum transferrin, and plasma prealbumin on admission and then weekly. Eating problems were identified in 27 patients. In a general linear hypothesis program, poor nutritional status 3 weeks after admission was found to be associated with (in decreasing order) low self-care performance, poor nutritional status on admission, male sex, intravenous energy-containing fluids, advanced age, paresis of the right arm, and eating problems. Factors other than eating problems seem to be important for undernutrition in patients with strokes during hospital stay. AD - Department
|
|
| 5. |
- Brekke, Hilde Kristin, 1972, et al.
(författare)
-
Lifestyle changes can be achieved through counseling and follow-up in first-degree relatives of patients with type 2 diabetes.
- 2003
-
Ingår i: Journal of the American Dietetic Association. - 0002-8223. ; 103:7, s. 835-43
-
Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: To describe two lifestyle prevention strategies tested in first-degree relatives of patients with type 2 diabetes and to present the short-term effects of these strategies on nutrient intake, physical activity pattern, and body weight. DESIGN: In this 16-week controlled intervention trial, subjects were assigned to one of three treatment conditions: diet group (D) (n=25), diet and exercise group (DE) (n=30), or control group (C) (n=22). Subjects/setting Non-diabetic relatives of individuals with diabetes were recruited (n=77; men and women; age 25 to 55 years). INTERVENTION: Intervention groups received group counseling on two occasions and follow-up through unannounced telephone interviews every 10 days. Counseling regarding diet and physical activity was based on the Nordic Nutrition Recommendations. In addition, increased intake of fatty fish and low glycemic index foods were recommended. Main outcome measures Changes in diet (assessed by food frequency questionnaires), leisure time physical activity (assessed through interviews), fatty acid composition of erythrocyte membrane, and body weight. Statistical analysis One-way analysis of variance and Mann-Whitney U test were used to compare changes among groups. RESULTS: Compared with the control group, both intervention groups decreased intake of saturated fatty acids (percent of energy), increased intake of dietary fiber, and reduced average glycemic index of the diet. The ratio of n-6:n-3 fatty acids of the erythrocyte membranes decreased, confirming increased intake of fatty fish. Body weight decreased 1.7 kg (2.1%, P=.030) in group DE, and physical activity increased in the least-active subjects (+70 min/week, P<.01 within group). Applications/Conclusions Healthy individuals with heredity for type 2 diabetes can achieve desired changes in lifestyle factors associated with increased risk for the disease.
|
|
| 6. |
- Davis, Nichola J., et al.
(författare)
-
Predictors of Sustained Reduction in Energy and Fat Intake in the Diabetes Prevention Program Outcomes Study Intensive Lifestyle Intervention
- 2013
-
Ingår i: Journal of the American Dietetic Association. - : Elsevier BV. - 0002-8223. ; 113:11, s. 1455-1464
-
Tidskriftsartikel (refereegranskat)abstract
- Background Few lifestyle intervention studies examine long-term sustainability of dietary changes. Objective To describe sustainability of dietary changes over 9 years in the Diabetes Prevention Program and its outcomes study, the Diabetes Prevention Program Outcomes Study, among participants receiving the intensive lifestyle intervention. Design One thousand seventy-nine participants were enrolled in the intensive lifeStyle intervention arm of the Diabetes Prevention Program; 910 continued participation in the Diabetes Prevention Program Outcomes Study. Fat and energy intake derived from food frequency questionnaires at baseline and post-randomization Years 1 and 9 were examined. Parsimonious models determined whether baseline characteristics and intensive lifestyle intervention session participation predicted sustainability. Results Self-reported energy intake was reduced from a median of 1,876 kcal/day (interquartile range [IQR]=1,452 to 2,549 kcal/day) at baseline to 1,520 kcal/day (IQR=1,192 to 1,986 kcal/day) at Year 1, and 1,560 kcal/day (IQR=1,223 to 2,026 kcal/ day) at Year 9. Dietary fat was reduced from a median of 70.4 g (IQR=49.3 to 102.5 g) to 45 g (IQR=32.2 to 63.8 g) at Year 1 and increased to 61.0 g (IQR=44.6 to 82.7 g) at Year 9. Percent energy from fat was reduced from a median of 34.4% (IQR=29.6% to 38.5%) to 27.1% (IQR=23.1% to 31.5%) at Year 1 but increased to 35.3% (IQR=29.7% to 40.2%) at Year 9. Lower baseline energy intake and Year 1 dietary reduction predicted lower energy and fat gram intake at Year 9. Higher leisure physical activity predicted lower fat gram intake but not energy intake. Conclusions Intensive lifestyle intervention can result in reductions in total energy intake for up to 9 years. Initial success in achieving reductions in fat and energy intake and success in attaining activity goals appear to predict long-term success at maintaining changes.
|
|
| 7. |
- Holt, Erica M., et al.
(författare)
-
Fruit and Vegetable Consumption and Its Relation to Markers of Inflammation and Oxidative Stress in Adolescents
- 2009
-
Ingår i: Journal of the American Dietetic Association. - : Elsevier BV. - 0002-8223 .- 1878-3570. ; 109:3, s. 414-421
-
Tidskriftsartikel (refereegranskat)abstract
- Background Fruits and vegetables, foods rich in flavonoids and antioxidants, have been associated with lower risk of stroke, coronary heart disease, and markers of inflammation and oxidative stress in adults. Markers of inflammation and oxidative stress are predictors of coronary heart disease risk; however, it is unknown whether these markers are related to dietary flavonoid and antioxidant intake in youth. Objective To determine whether greater intakes of fruit and vegetables, antioxidants, folate, and total flavonoids were inversely associated with markers of inflammation and oxidative stress in 285 adolescent boys and girls aged 13 to 17 years. Design In this cross-sectional study conducted between February 1996 and January 2000, diet was assessed by a 127-item food frequency questionnaire. Height and weight measurements were obtained and a fasting blood sample drawn. Spearman partial correlation analyses evaluated the relation of intakes of fruit and vegetables, antioxidants, folate, and flavonoids with markers of inflammation (C-reactive protein, interleukin-6, tumor necrosis factor-alpha, and 15-keto-dihydro-PGF(2 alpha) metabolite and oxidative stress (urinary 8-iso prostaglandin F-2 alpha, an F-2-isoprostane), adjusting for age, sex, race, Tanner stage, energy intake, and body mass index. Results Urinary F-2-isoprostane was inversely correlated with intakes of total fruit and vegetables, vitamin C, beta carotene, and flavonoids. Serum C-reactive protein was significantly inversely associated with intakes of fruit (r=-0.19; P=0.004), vitamin C (r=-0.13, P=0.03), and folate (r=-0.18; P=0.004). Serum interleukin-6 was inversely associated with intakes of legumes, vegetables, beta carotene, and vitamin C. Serum tumor necrosis factor-a was inversely associated with beta carotene (r=-0.14, P=0.02) and luteolin (r=-0.15, P=0.02). Conclusion Study results show that the beneficial effects of fruit and vegetable intake on markers of inflammation and oxidative stress are already present by early adolescence and provide support for the Dietary Guidelines for Americans "to consume five or more servings per day" of fruits and vegetables to promote beneficial cardiovascular health.
|
|
| 8. |
- Larsson, Christel, 1972-, et al.
(författare)
-
Young Swedish vegans have different sources of nutrients than young omnivores
- 2005
-
Ingår i: Journal of the American Dietetic Association. - Amsterdam : Elsevier BV. - 0002-8223 .- 1878-3570. ; 105:9, s. 1438-41
-
Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to identify sources of nutrients in diets of young Swedish vegans and omnivores. Three months of dietary intakes were investigated by diet history interviews. Volunteers were recruited through advertising and visits to schools in the city of Umeå, Sweden. Thirty vegans, 15 female and 15 male, aged 17.5±1.0 years, were compared with 30 sex-, age-, and height-matched omnivores. Vegans had different sources of nutrients than young omnivores and relied to a great extent on dietary supplements as a source of vitamin B-12, vitamin D, calcium, and selenium. Dietary intake of vegetables, fruits, and berries exceeded 500 g/day for 21 of the 30 vegans, whereas the same held true for only 1 of the 30 omnivores. Instead of animal products, young vegans rely on dietary supplements, legumes, vegetables, fruits, and berries as sources of nutrients.
|
|
| 9. |
|
|
| 10. |
- van Rijn, Margreet, et al.
(författare)
-
A Survey of Natural Protein Intake in Dutch Phenylketonuria Patients : Insight into Estimation or Measurement of Dietary Intake
- 2008
-
Ingår i: Journal of the American Dietetic Association. - : Elsevier BV. - 0002-8223. ; 108:10, s. 1704-1707
-
Tidskriftsartikel (refereegranskat)abstract
- This study investigated which methods patients and parents used to determine phenylalanine (Phe) intake and the relationship between the methods applied, age, and blood Phe concentration, as this practice had not been studied before in relation to metabolic control. A questionnaire was sent to 327 Dutch phenylketonuria patients (age 0-29 years) to investigate the method used to determine Phe intake (either by estimation, exact measurement, or a combination of both). Mean blood Phe concentration of each individual patient was related to the method reported to be used. Three different age groups (<10 years, ≥10-15 years, and ≥16 years) were distinguished. The response rate for the questionnaires was 73%. In these 188 patients, data for both Phe concentrations and questionnaires could be used. Of these, 75 used exact measurement, 75 used estimation, and 38 used both methods. The number of patients that estimated Phe intake clearly increased with age. Whatever method was used, an increase in Phe concentrations was seen with age. During childhood, exact measurement was used more frequently, and from adolescence on estimation was used more frequently. The method (exact measurement and/or estimation) did not result in statistically different Phe concentrations in any of the three age groups, although blood Phe concentration tended to be lower in adolescence using exact measurement. Data suggest that estimation and exact measurement of Phe intake are both reliable methods. Therefore, in addition to exact measurement, patients should be instructed in both methods at an early age, so that both methods can be used adequately.
|
|
