Early life factors as predictors of age-associated deficit accumulation across 17 years from midlife into old age

2022 ◽  
Author(s):  
Markus J Haapanen ◽  
Juulia Jylhävä ◽  
Lauri Kortelainen ◽  
Tuija M Mikkola ◽  
Minna Salonen ◽  
...  
Keyword(s):  
Old Age ◽  
Early Life ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Frailty Index ◽  
Rate Of Change ◽  
Birth Cohort Study ◽  
Maternal Body Mass Index ◽  
Early Life Factors ◽  
Early Life Exposures

Abstract Background Early life exposures have been associated with the risk of frailty in old age. We investigated whether early life exposures predict the level and rate of change in a frailty index (FI) from midlife into old age. Methods A linear mixed model analysis was performed using data from three measurement occasions over 17 years in participants from the Helsinki Birth Cohort Study (n=2000) aged 57-84 years. A 41-item FI was calculated on each occasion. Information on birth size, maternal body mass index (BMI), growth in infancy and childhood, childhood socioeconomic status (SES), and early life stress (wartime separation from both parents), was obtained from registers and healthcare records. Results At age 57 years the mean FI level was 0.186 and the FI levels increased by 0.34 percent/year from midlife into old age. Larger body size at birth associated with a slower increase in FI levels from midlife into old age. Per 1kg greater birth weight the increase in FI levels per year was -0.087 percentage points slower (95% CI=-0.163, -0.011; p=0.026). Higher maternal BMI was associated with a higher offspring FI level in midlife and a slower increase in FI levels into old age. Larger size, faster growth from infancy to childhood, and low SES in childhood were all associated with a lower FI level in midlife but not with its rate of change. Conclusions Early life factors seem to contribute to disparities in frailty from midlife into old age. Early life factors may identify groups that could benefit from frailty prevention, optimally initiated early in life.

scholarly journals Factors associated with professional identity formation within psychiatry residency training: A longitudinal study

2021 ◽  
Author(s):  
Qian Hui Chew ◽  
Yvonne Steinert ◽  
Kang Sim
Keyword(s):  
Professional Identity ◽  
Identity Formation ◽  
Psychiatry Residency ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Developmental Stages ◽  
Rate Of Change ◽  
Psychiatry Residents ◽  
Factors Associated ◽  
Over Time

Abstract Introduction Conceptual frameworks for professional identity (PI) formation highlight the importance of developmental stages and socialization as the learner progresses from legitimate peripheral to full participation. Based on extant literature and clinical impressions, the authors aimed to explore factors associated with PI formation in psychiatry residents over time, and hypothesized that time in training, seniority status, and duration of exposure to psychiatry prior to residency would be associated with PI formation. Methods Eighty out of 96 psychiatry residents (response rate, 83.3%) from the National Psychiatry Residency Program in Singapore participated and rated their PI development using the Professional Self Identity Questionnaire (PSIQ) across four timepoints from January 2016–December 2019. The residents were classified as junior (first 3 years) or senior residents (years 4–5). Linear mixed model analyses were conducted, with time in training, seniority status (junior versus senior residents), duration of psychiatry postings prior to residency, and their interaction as associated factors with PI over time. Results Time in training, seniority, and duration of psychiatry postings before residency (all p < 0.01) were significantly associated with higher PSIQ scores at baseline. Over time, although all residents had increases in PSIQ scores, this rate of change did not differ significantly between junior and senior residents. Discussion Exposure to psychiatry postings before residency, time in learning, and seniority are factors which influence PI development in residents. This has implications for psychiatry residency selection and training, adequate clinical exposure during training rotations, and continual support for new and senior residents to foster PI formation over time.

scholarly journals 103 Periodontal Health and Sarcopenia: Cross-Sectional Evidence From A Cohort of 2040 Twin Volunteers

2021 ◽  
Vol 50 (Supplement_1) ◽  
pp. i12-i42
Author(s):  
M B Zazzara ◽  
P M Wells ◽  
R C E Bowyer ◽  
M N Lochlainn ◽  
E J Thompson ◽  
...  
Keyword(s):  
Mixed Model ◽  
Linear Mixed Model ◽  
Frailty Index ◽  
Muscle Quality ◽  
Low Grade ◽  
Periodontal Health ◽  
Cross Sectional ◽  
Age Related ◽  
European Working ◽  
Generalised Linear Mixed Model

Abstract Introduction Periodontitis is a chronic inflammatory disease affecting the periodontium, ultimately leading to looseness and/or loss of teeth. Sarcopenia refers to age-related reduction in muscle mass and strength. Similar to periodontitis, chronic low-grade inflammation is thought to play a key role in its development. In addition, both increase in prevalence with advancing age. Despite known associations with other diseases involving a dysregulated inflammatory response, for example rheumatoid arthritis,, the relationship between periodontitis and sarcopenia, and whether they could be driven by similar processes, remains uncertain. The aim of this study was to explore the association between periodontitis and sarcopenia. Methods Observational study of 2040 adult volunteers [age 67.18 (12.17)] enrolled in the TwinsUK cohort study. Presence of tooth mobility and number of teeth lost were used to assess periodontal health. A binary variable was created to define periodontitis. Measurements of muscle strength, muscle quality/quantity and physical performance were used to assess sarcopenia. A categorical variable was created according to the European Working Group on Sarcopenia in Older People (EWGSOP2) consensus, to define sarcopenia (1: probable; 2: positive; 3: severe). Generalised linear mixed model analysis used on complete cases and age-matched (n = 1,288) samples to ascertain associations between periodontitis and sarcopenia. Results No significant association was found between periodontitis and sarcopenia in both the complete cases analysis and age-matched analysis. Results were consistent when analysis was adjusted for potential confounders including body mass index, frailty index, Mini Mental State Examination smoking, nutritional status and educational level. Conclusions This study found no significant association between periodontitis and sarcopenia in a cohort of 2040 adults. Although both periodontitis and sarcopenia have been linked to a dysregulated immune response and demonstrate an increase in prevalence with increasing age, our work is inconclusive due to the plethora of possible aetiopathogenetic pathways.

scholarly journals The impact of early life factors on cognitive function in old age: The Hordaland Health Study (HUSK)

2013 ◽  
Vol 1 (1) ◽  
Author(s):  
Jens Christoffer Skogen ◽  
Simon Øverland ◽  
A David Smith ◽  
Arnstein Mykletun ◽  
Robert Stewart
Keyword(s):  
Cognitive Function ◽  
Old Age ◽  
Early Life ◽  
Health Study ◽  
Early Life Factors ◽  
The Impact

Association between early-life factors and risk of child-onset Crohnʼs disease among victorian children born 1983–1998: A birth cohort study

2009 ◽  
Vol 15 (6) ◽  
pp. 858-866 ◽  
Author(s):  
Anne-Louise Ponsonby ◽  
Anthony G. Catto-Smith ◽  
Angela Pezic ◽  
Sandy Dupuis ◽  
Jane Halliday ◽  
...  
Keyword(s):  
Cohort Study ◽  
Birth Cohort ◽  
Early Life ◽  
Birth Cohort Study ◽  
Early Life Factors

scholarly journals Lung function over the life course of paediatric and adult patients with cystic fibrosis from a large multi-centre registry

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Arul Earnest ◽  
Farhad Salimi ◽  
Claire E. Wainwright ◽  
Scott C. Bell ◽  
Rasa Ruseckaite ◽  
...  
Keyword(s):  
Cystic Fibrosis ◽  
Lung Function ◽  
Mixed Model ◽  
Linear Mixed Model ◽  
Pancreatic Insufficiency ◽  
Forced Expiratory Volume ◽  
Rate Of Change ◽  
Data Registry ◽  
Mortality Outcome ◽  
The Impact

Abstract A key measure of lung function in people with Cystic Fibrosis (CF) is Forced Expiratory Volume in the first second FEV1 percent predicted (FEV1pp). This study aimed to address challenges in identifying predictors of FEV1pp, specifically dealing with non-linearity and the censoring effect of death. Data was obtained from a large multi-centre Australian Cystic Fibrosis Data Registry (ACFDR). A linear mixed model was used to study FEV1pp as the endpoint. There were 3655 patients (52.4% male) included in our study. Restricted cubic splines were used to fit the non-linear relationship between age of visit and FEV1pp. The following predictors were found to be significant in the multivariate model: age of patient at visit, BMI z-score, age interaction with lung transplantation, insulin dependent diabetes, cirrhosis/portal hypertension, pancreatic insufficiency, Pseudomonas aeruginosa infection and baseline variability in FEV1pp. Those with P. aeruginosa infection had a lower mean difference in FEV1pp of 4.7 units, p < 0.001 compared to those who did not have the infection. Joint modelling with mortality outcome did not materially affect our findings. These models will prove useful for to study the impact of CFTR modulator therapies on rate of change of lung function among patients with CF.

scholarly journals Early life factors for endometriosis: a systematic review

2020 ◽  
Vol 26 (3) ◽  
pp. 412-422 ◽  
Author(s):  
Karolína Olšarová ◽  
Gita D Mishra
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Early Life ◽  
Low Birthweight ◽  
In Utero ◽  
Case Control ◽  
Biological Mechanisms ◽  
Cross Sectional ◽  
Early Life Factors ◽  
Early Life Exposures

Abstract BACKGROUND Despite its high prevalence and health burden, many aspects of endometriosis remain unclear, including risk factors and the underlying biological mechanisms. Exposures during early life, including in utero, are thought to play an important role in the subsequent onset of the condition. To date, however, much of the evidence from studies on early life exposures and diagnosed endometriosis appears mixed and difficult to assess. OBJECTIVE AND RATIONALE This study aims to provide a systematic review of the epidemiologic evidence on early life factors associated with the subsequent diagnosis of endometriosis. In utero and early life exposures have previously been linked to a range of adult health outcomes, including infertility. SEARCH METHODS A systematic review of case–control, cross-sectional and cohort studies was conducted using the search terms ‘endometriosis’[MeSH] AND (‘risk factors’[MeSH] OR ‘protective factors’[MeSH]) AND (‘in utero’, ‘fetal’, ‘neonatal, ‘perinatal’, ‘developmental origins’, ‘early life’, ‘childhood’ OR ‘life course’) in Embase, PubMed and Scopus databases. The review included articles published in English until 10 June 2018 with original data from studies with diagnosed endometriosis. The quality of primary studies was evaluated using the Newcastle–Ottawa Scale by both authors independently. Due to the degree of inconsistency in the measurements and study methods, a qualitative assessment of findings was undertaken rather than meta-analysis. OUTCOMES The search retrieved 70 records without duplicates that contained 20 records on human case–control, cross-sectional or cohort studies, from which 11 papers/studies were selected based on their assessment score. The majority of studies found that women born with low birthweight (&lt;2.5 kg or &lt;5.5 lb) were more likely to be diagnosed with endometriosis. For other early life factors, the evidence is mixed or limited, with further research needed on the association of endometriosis with preterm birth, in utero exposure to diethylstilbestrol and to maternal smoking, passive smoking in early life, and infant formula feeding (compared with breastfeeding). WIDER IMPLICATIONS While the weight of evidence points to low birthweight as a risk factor for diagnosis of endometriosis, future research is warranted on this and other key early life exposures where the findings are mixed to provide more robust evidence and for insights on potential causal pathways. Such research, however, needs to address current methodological issues, such as the use of prospective data from large population-based studies, better diagnostic methods to confirm disease free status, more consistent definitions of variables and consideration of potential biological mechanisms to guide the analyses. The improvements will advance the future synthesis of evidence to support clinically relevant risk assessment for a more timely diagnosis and treatment of endometriosis.

scholarly journals Association between breastfeeding and better preserved cognitive ability in an elderly cohort of Finnish men

2017 ◽  
Vol 48 (6) ◽  
pp. 939-951 ◽  
Author(s):  
V. Rantalainen ◽  
J. Lahti ◽  
M. Henriksson ◽  
E. Kajantie ◽  
M. Mikkonen ◽  
...  
Keyword(s):  
Cognitive Ability ◽  
Old Age ◽  
Mixed Model ◽  
Cognitive Change ◽  
Intellectual Ability ◽  
Birth Cohort Study ◽  
Ability Test ◽  
Mean Differences ◽  
Elderly Cohort ◽  
Duration Of Breastfeeding

BackgroundBeing breastfed in infancy has been shown to benefit neurodevelopment. However, whether the benefits persist to old age remains unclear.MethodsWe examined the associations between breastfeeding and its duration on cognitive ability in young adulthood and old age, and on aging-related cognitive change over five decades. In total, 931 men from the Helsinki Birth Cohort Study born in 1934–1944 in Finland took the Finnish Defence Forces Basic Intellectual Ability Test (total and verbal, arithmetic and visuospatial subtest scores) twice, at ages 20.2 and 67.9 years, and had data on breastfeeding (yes v. no) and its duration (‘never breastfed’, ‘up to 3’, ‘3 to 6’ and ‘6 or more months’). Linear and mixed model regressions tested the associations.ResultsAt 20.2 years, breastfed men had higher cognitive ability total and visuospatial subtest scores [mean differences (MDs) ranged between 3.0–3.9, p values < 0.013], and its longer duration predicted higher cognitive ability total and arithmetic and visuospatial subtest scores (MDs ranged between 3.0 and 4.8, p values < 0.039). At 67.9 years, breastfed men had higher total cognitive ability and all subtest scores (MDs ranged between 2.6 and 3.4, p values < 0.044) and its longer duration predicted all cognitive ability scores (MDs ranged between 3.1 and 4.7, p values < 0.050). Verbal subtest scores decreased over five decades in men who were never breastfed or were breastfed for 3 months or less, and increased in those breastfed for longer than 3 months.ConclusionsNeurodevelopmental advantages of breastfeeding and its longer duration persist into old age, and longer duration of breastfeeding may benefit aging-related change, particularly in verbal reasoning ability.

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