Influence of parental physical activity on offspring’s nutritional status: an intergenerational study in the 1993 Pelotas birth cohort

Objective: To investigate the influence of parental physical activity on offspring’s nutritional status in the 1993 Pelotas (Brazil) birth cohort. Design: Birth cohort study. Setting: The main outcomes were overweight and obesity status of children. The main exposure was parental physical activity over time, measured during the 11-, 15-, and 18-years of age follow-ups. The exposure was operationalized as cumulative, and the most recent measure before the birth of child. We adjusted Poisson regression models with robust variance to evaluate crude and adjusted associations between parental physical activity and offspring’s nutritional status. All analyses were stratified according to the sex of the parent. Participants: A total of 874 members from the 1993 Pelotas (Brazil) birth cohort followed-up at 22-years of age with their first-born child were analysed. Results: Children were, on average, 3.1 years old. Crude analyses showed that the mother’s cumulative physical activity measure had an indirect association with the prevalence of children’s obesity. The most recent maternal physical activity measure before the birth of the child was associated with 41% lower prevalence of obesity in children, even after adjustment for confounders. Conclusions: The most recent maternal physical activity measure was indirectly associated with the prevalence of obesity of children. No associations were found for fathers, reinforcing the hypothesis of a biological effect of maternal physical activity on offspring’s nutritional status.

The Spanish Intergenerational Study: Beliefs, Stereotypes, and Metacognition about Older People and Grandparents to Tackle Ageism

Ageism can be seen as systematic stereotypes, prejudice, and discrimination of people because of their age. For a long time, society has accepted negative stereotypes as a norm. When referring to older adults, the United Nations Global Report on Ageism warns about a severe impact. The Intergenerational Study for a Healthy Aging, a questionnaire about believes, stereotypes, and knowledge about older people and grandparents, was administered to 326 Spanish biology and medical students. Here we report the results of stereotype analysis through adjective qualification of the youth and older people performed before the survey. Content analysis of two open questions about metacognition at the end of the survey is also presented. The results show that: (1) The questionnaire promoted metacognition; (2) Positive metacognition toward grandparents was higher than for the general old population; (3) Most participants were not conscious about ageism; (4) Gender was a key factor—male students were more ageist than females; (5) The feeling of guilt was higher in the questionnaire about older people; (6) The metacognition exercise elicited thoughts and, in few cases, the need to take action to tackle ageism. In conclusion, both activities promoted active thoughts about older people vs. grandparents and helped participants realize unconscious ageism—specifically toward the older population—serving as an awareness activity that may help tackle ageism.

Capitalising on faith? An intergenerational study of social and religious capital among Baby Boomers and Millennials in Britain

Intergenerational inequalities in economic security, health and political participation are frequently associated with inequalities in access to social capital. Millennials (those born after 1982) are often regarded as the least civically active generation, suggesting that they have less access to social capital, compared to other generations. Numerous studies have linked the decline of religion with falling social capital, as younger generations are deprived of a valuable source of social interaction; others, however, have claimed the link between the two is spurious because Millennials have developed different ways of interacting with social institutions and each other. Despite various studies exploring links between forms of religious and social capital, the role of religious decline in contributing to the intergenerational inequalities of today remains unclear. This study examines how religious capital is related to social capital for Baby Boomers and Millennials in the UK. Our analysis shows that while lower levels of religious capital are contributing to lower levels of social capital among Millennials, religious activity is also a more effective source of social capital for Millennials than their elders. We discuss possible interpretations of our data, including exploring whether greater religious engagement among Millennials may protect against intergenerational inequality and conflict.

Body mass index, prudent diet score and social class across three generations: evidence from the Hertfordshire Intergenerational Study

BackgroundStudies describing body mass index (BMI) and prudent diet score have reported that they are associated between parents and children. The Hertfordshire Intergenerational Study, which contains BMI, diet and social class information across three generations, provides an opportunity to consider the influence of grandparental and parental BMI and prudent diet score across multiple generations, and the influence of grandparental and parental social class on child BMI.MethodsLinear regressions examining the tracking of adult BMI and prudent diet score across three generations (grandparent (F0), parent (F1) and child (F2)) were run from parent to child and from grandparent to grandchild. Linear mixed models investigated the influence of F0 and F1 BMI or prudent diet score on F2 BMI and prudent diet score. Linear regressions were run to determine whether social class and prudent diet score of parents and grandparents influenced the BMI of children and grandchildren.ResultsBMI was significantly associated across each generational pair and from F0 to F1 in multilevel models. Prudent diet score was significantly positively associated between grandparents and grandchildren. Lower grandparental and parental social class had a significantly positive association with F2 BMI (F0 low social class: b=1.188 kg/m2, 95% CI 0.060 to 2.315, p=0.039; F1 middle social class: b=2.477 kg/m2, 95% CI 0.726 to 4.227, p=0.006).ConclusionAdult BMI tracks across generations of the Hertfordshire Intergenerational Study, and child BMI is associated with parental and grandparental social class. The results presented here add to literature supporting behavioural and social factors in the transmission of BMI across generations.

Parental Prenatal Symptoms of Depression and Offspring Symptoms of ADHD: A Genetically Informed Intergenerational Study

Objective: The primary aim of the present study was to separate the direct effect of maternal prenatal depression on offspring ADHD from the passive transmission of genetic liability. Method: A children-of-twins and siblings design including 17,070 extended-family units participating in the Norwegian Mother and Child Cohort Study was used. Self-ratings were obtained from parents using the Symptom Checklist during pregnancy. Maternal ratings using Conner’s Parent Rating Scale were obtained when the children were 5 years of age. Results: Genetic influences were important for explaining similarity between parents and offspring. There was also evidence for a maternal effect after accounting for genetic transmission ( m = 0.06, 95% confidence interval [CI] = [0.02, 0.09]). Conclusion: Our results were consistent with hypotheses suggesting that maternal prenatal depression influences symptoms of ADHD in offspring. However, the effect was weak and a substantial portion of the association could be accounted for by shared genetic influences.