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Introduction: The purpose of this study was to describe the prevalence of overweight and variations in physical activity and smoking habits among parents in three suburbs of Copenhagen, focusing on differences related to ethnic Danish and bilingual children, respectively., Material and Methods: The health profile was completed as part of a physician health check-up at school start. The questionnaire included registration of the parents' employment status, parental smoking habits, and health behaviour among the children. The children's height and weight were registered. A total of 823 children were included (participation rate of 96.1%) of which 201 were bilingual., Results: 21.2% of the children had a weight exceeding the 90 percentile (based on a Danish standard). Of these, 8.7% had a weight exceeding the 97 percentile. 32.2% of the bilingual children were overweight while 18% of the ethnic Danish children were overweight (p = 0.001). Fewer children were overweight in the more affluent suburb to the north of Copenhagen than in the two other suburbs. Fewer bilingual children were involved in organized sports and walked or cycled to school. More bilingual children were exposed to passive smoking in the home and spent longer time in front of a screen., Conclusion: At school start, approximately one fifth of the children in three Copenhagen suburbs had a weight exceeding the 90 percentile and approximately 9% over the 97 percentile. Bilingual children were more often exposed to risk factors predisposing to lifestyle diseases.

This report examines the wintertime vitamin D and PTH status of 308 participants in the Boston Low Income Elderly Osteoporosis Study of noninstitutionalized low income elderly men and women (age, 64-100 yr) living in subsidized housing in Boston, MA. Twenty-one percent of the 136 black subjects and 11% of the 110 whites had very low plasma 25-hydroxyvitamin D (25OHD) concentrations (<25 nmol/L), and 73% of the blacks and 35% of the whites had 25OHD concentrations less than 50 nmol/L. The mean 25OHD levels of the smaller Hispanic and Asian subsets were generally similar to those of the white subjects. In addition to race, significant predictors of 25OHD included vitamin D intake (positive association) and smoking (inverse association), but not sex or age. Low 25OHD concentrations were associated with increased PTH and reduced serum calcium. The PTH level in the black subjects was substantially higher than that in the white subjects, and this difference was only partially explained by the racial difference in 25OHD. Elderly individuals who live in northern areas, particularly African-Americans, should be strongly encouraged to increase their vitamin D intake, especially in winter.

The five countries of Scandinavia (Denmark, Finland, Iceland, Norway, and Sweden) comprise 22.6 million inhabitants and rather homogeneous socioeconomic conditions. A survey of systemic Haemophilus influenzae diseases over the last decades revealed that the reported incidence of H. influenzae disease is increasing. In recent years, the overall incidence has been 3.5 cases per 100,000 people each year (800 cases annually); in children less than 5 years of age, the annual incidence has been 49 cases per 100,000. Meningitis represents only 52% of all systemic H. influenzae diseases, but lack of reliable data may obscure the importance of other entities. Few strains (less than 5%) are beta-lactamase-positive, and the case fatality rate is 3%. Analysis of seasonal variation shows peaks in June and September-October. If the efficacy of the H. influenzae conjugate vaccines were as high as that of a conjugate vaccine used in Finland during 1986-1987 (approximately 85% efficacy), then at least an 80% reduction in life-threatening H. influenzae infections would be achieved annually by routine immunization before or at the age of 6 months.