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PubMed1999

Use of food nutrition labels is associated with lower fat intake.

OBJECTIVE: The Nutrition Labeling and Education Act of 1990 mandated that standardized nutrition information appear on almost all packaged foods manufactured after May 1994. This study describes the demographic and diet-related psychosocial correlates of nutrition label use, and examines the relationship between label use and diet. DESIGN/SUBJECTS: Data are from a random-digit-dial telephone survey of 1,450 adult residents of Washington State. The questionnaire assessed nutrition label use, fat-related diet habits, fruit and vegetable consumption, diet-related psychosocial factors, health behavior, and demographic characteristics. STATISTICAL ANALYSES: Analyses examined associations of demographic characteristics with nutrition label use; diet-related psychosocial factors and health behavior with nutrition label use, controlled for demographic characteristics; and nutrition label use with fat and fruit and vegetable intake, controlled for demographic characteristics and psychosocial factors. RESULTS: Nutrition label use was significantly higher among women, residents younger than 35 years, and residents with more than a high school education. When controlled for demographic characteristics, the strongest predictors of label use were believing in the importance of eating a low-fat diet, believing in an association between diet and cancer, and being in the maintenance stage of change for adopting a low-fat diet. Label use was significantly associated with lower fat intake and, after controlling for all demographic, psychosocial, and behavioral variables, explained 6% of the variance in fat intake (P < .001). Label use was not associated with fruit and vegetable consumption. APPLICATIONS/CONCLUSION: Persons successfully limiting their fat intake use nutrition labels, suggesting that the new nutrition labels are helpful. Dietetics professionals can use the results of this study to emphasize to their clients the importance of reading nutrition labels in maintaining a low-fat diet.

Adult↗
PubMed1994

A population-based autopsy study of sudden, unexpected deaths from natural causes among persons 5 to 39 years old during a 12-year period.

All unexpected deaths in New Mexico from 1977 to 1988 were reviewed. By statute each such death must be reported to the Office of the Medical Examiner (OMI) and according to institutional policy autopsied even when death is presumed to be from natural causes. From this group the 650 index cases that form the basis of this report were obtained. The crude rate of sudden, unexpected death among New Mexico residents 5 to 39 years old during the study period was 6.6/100,000 persons at risk. As documented by autopsy, the underlying cause of death in a majority of these cases (53.4%) was related to cardiovascular disease and alcoholism. Male persons in general are at increased risk for sudden, unexpected death, and American Indian and black male persons are at greater risk than their Anglo and Hispanic counterparts. American Indians account for a disproportionate share of the unexpected deaths resulting from alcoholism, and black male persons are at particular risk for unexpected death resulting from cardiovascular diseases. This report emphasizes the importance of life style and diet in the well-being of persons 5 to 39 years old.

Adolescent↗
PubMed1999

Accidents to preschool children: comparing family and neighbourhood risk factors.

Accidental injury in young children is more common among poorer families and in deprived areas but little is known about how these factors interact. This paper describes a study to measure the contribution of individual family factors and area characteristics in determining risk of accidental injury among preschool children. We conducted a population based study of preschool accident and emergency attendances over two years in and around the city of Norwich, UK. Information on individual families was extracted from the district child health information system while "social areas" were constructed from adjacent census enumeration districts with homogeneous social and demographic characteristics. Statistical analysis was by multilevel modelling. Accidental injury rates were much higher in deprived urban neighbourhoods than in affluent areas but the multilevel analysis showed that, for all accidents, much of the variation in rates was accounted for by factors at the individual level i.e. male sex, young maternal age, number of elder siblings and distance from hospital, with a smaller, but independent, influence of living in a deprived neighbourhood. The model for more severe injuries was similar except single parenthood was now significant at the level of individuals and the effect of area deprivation was stronger. We conclude that preschool accidental injuries are influenced by factors operating at both the level of individual families and between areas. This evidence suggests that both social policy changes to improve child care among unsupported young families and targeting accident prevention measures at a local level towards deprived neighbourhoods would reduce accidents.

Accidents↗
PubMed2000

Hematological parameters in high altitude residents living at 4,355, 4,660, and 5,500 meters above sea level.

There have been a number of reports describing the hematological indicators of Andean residents living at altitudes above 4,000 m, but several confounding factors have made the published results difficult to interpret. To clear up the effect of hypoxia on hemoglobin concentration (Hb, g/dL), hematocrit (Hct, %) and red blood cell concentration (RBC, cells/microL), this publication describes and analyzes these variables in children, men, and women from three large and homogeneous populations living at 4,355 m (n = 151), 4,660 m (n = 400), and 5,500 m (n = 273) in the Southern Peruvian Andes. Hb, Hct, and RBC increase with age in men (p < 0.001), as well as in women (p < 0.001) at the three altitudes of the study. In children (boys and girls) living at 5,500, Hb increases 11% when compared with children living at 4,355 m, and in adults, Hb increases 9.6% when comparing the same altitudes. The maximum percentage increase in Hb with age was 5.6% at 5,500 m, in men and 3.2% at 4,355 m, in women. The average percentage of difference for the Hb concentration between adult men and women is 6.6% at 4,355 m, 9.8% at 4,660 m, and 11.6% at 5,500 m. The differences in Hb concentration between men and women can only be seen after puberty. Finally, Hb is higher in older than younger women, which confirms the role of menopause in the development of erythremia. The result of this analysis reinforces the notion that Hb and Hct seem to be stable and useful parameters for acclimatization only at moderate altitudes; with aging or with increasing altitude, they may become excessive and lose their efficiency to protect the venous oxygen pressure.

Acclimatization↗