Image shows front cover of BMJ Public Health journal article: 'Reaching consensus on the definition of modifiable determinants of health: a Delphi study' Abstract: Introduction The term ‘modifiable risk factor’ and similar variations of the expression are common across health literature. Despite this, there is no universal definition for what would be modifiable when considering the factors that increase risk of ill health or enable good health and well-being. We conducted a Delphi study aiming to reach consensus among interdisciplinary experts on the definition and conceptualisation of what would be considered ‘modifiable’ as health determinants. Methods The Delphi statements were based on initial criteria conceptualised by the research team and published in an opinion article. 103 experts from a range of interdisciplinary backgrounds were invited to participate in the Delphi. The statements were adjusted based on the results of the first round and circulated to participants in a second round. Results 33 experts completed the first round. 4 out of 10 statements achieved consensus (≥70%). 30/33 (90%) of experts completed the second round, and a further one out of three statements achieved consensus. Combining results from both rounds, we have reached this definition: ‘A modifiable health determinant must be potentially changeable through direct and/or indirect interventions at the individual or population levels, and it must be possible to quantify or describe such change in some way. Whether a health determinant is modifiable is context- and systemdependent (including the social, economic, political, commercial and environmental contexts); therefore, transparent consideration of a context-dependent definition is recommended in research design and reporting’. Conclusions This study offers a consensus-based view on what can be considered ‘modifiable’. Having a common understanding of the term facilitates interdisciplinary collaboration in health research and transl…

📑 New article, co-authored by CPC-CG member @ann-berrington.bsky.social, is now published in BMJ #PublicHealth, describing reaching a consensus on how to define modifiable determinants of health

Read at bmjpublichealth.bmj.com/content/4/1/... @uossocstatdemo.bsky.social @unisouthampton.bsky.social

How did Brexit affect the mental health of ethnic minority youth? - Economics Observatory Research evidence suggests that the UK referendum on whether or not to remain in the European Union had uneven social consequences. Younger people from ethnic minorities living in areas of the…

JUST PUBLISHED – How did Brexit affect the mental health of ethnic minority youth?

By @valediiasio.bsky.social @corradogiulietti.bsky.social & @jackiewahba.bsky.social

Proportion of non-pensioner below-middle income families in different tenure types: GB/UK

We’ve seen a *massive* swing away from homeownership into expensive private renting.

Mortgaged families dropped from 30% to 17% of Unsung Britain, while private renters nearly doubled. Almost as many people live with parents (15%) as own with a mortgage (17%).

From costs to culture: what’s behind falling fertility in rich countries? - Economics Observatory Fertility rates have fallen rapidly in the UK and other high-income countries in recent years. Education, economic uncertainty and changing gender roles are among the factors that have played a part.…

JUST PUBLISHED – From costs to culture: what’s behind falling fertility in rich countries?

By @ann-berrington.bsky.social & Hill Kulu

Graphic showing conference info and a photo of a mother and son

📢 The CLS conference 2026, 22 – 23 September, London, will bring together researchers from across disciplines, institutions, sectors and career stages to showcase outstanding research using CLS cohort data. Deadline for submissions: Wednesday, 8 April. Further information: bit.ly/45SP3rO

👀 Here's a quick preview of all the articles in the NEW Changing Populations - to read them, head to: sway.cloud.microsoft/WzAYgcw05ELX...

@ukri.org @uossocstatdemo.bsky.social @cra-soton.bsky.social @standrewssgsd.bsky.social @oxforddemsci.bsky.social @ncrm.ac.uk @publicpolicyuos.bsky.social

Image shows journal article webpage extract which reads: Journal Article Labour market insecurity and parental co-residence in the United Kingdom: heterogeneities by parental class and age Open Access Vincent Jerald Ramos , Ann Berrington European Sociological Review, jcaf058, https://doi.org/10.1093/esr/jcaf058 Published: 09 January 2026 Abstract Amidst young adults’ increasing labour market insecurity and rates of parental co-residence, this article examines how unemployment and underexplored forms of non-standard employment (NSE)—underemployment and temporary and agency work (TAW)—are associated with inter-generational co-residence in the United Kingdom. Refining the feathered nest/gilded cage hypothesis to incorporate forms of non-NSE, we analyse how parental social class moderates this relationship across the transition to adulthood phase, driven by both protective and propellant motives. We estimate logistic regression models using the 2021–2024 waves of the UK Labour Force Survey, which allow for a precise identification of time-related underemployment and agency working. Results suggest that states of labour underutilization (underemployment) and impermanence (TAW) as well as unemployment are all associated with higher probabilities of parental co-residence relative to standard employment. This relationship is in part mediated by earnings disparities. Further, socio-economic background matters—the positive insecurity co-residence association is most pronounced amongst young adults from service-class backgrounds. This is consistent with a refined feathered nest/gilded cage hypothesis whereby higher parental resources facilitate co-residence at earlier phases of adulthood transitions, especially for young adults facing labour market insecurities, but this slightly tapers off with age.

📑 NEWLY PUBLISHED

CPC-CG members @vincentrramos.bsky.social & @ann-berrington.bsky.social @uossocstatdemo.bsky.social examine the relationship between young adults living with their parents, their employment status and socioeconomic background: academic.oup.com/esr/advance-... @bspsuk.bsky.social

Join us on Tuesday, 20 January for a discussion on youth in Europe.

Following a presentation on demographic trends in the near future, Prof. Aassve will lead a discussion on possible ways to strengthen the voice of young people.

Register here: tinyurl.com/28jv36du

New paper #OpAccess
Labour market insecurity matters beyond jobs!
@vincentrramos.bsky.social @ann-berrington.bsky.social show that unemployment, underemployment, and temporary work are all linked to higher parental co-residence, especially among advantaged young adults!

doi.org/10.1093/esr/jcaf058

Fertility rate hits record low in England, Scotland and Wales Last year’s total fertility rate of 1.41 for England and Wales was lowest since comparable data was first collected in 1938, ONS says

🗞️🗞️ Also on the #ONS #fertility release, @bernicerunsonboba.bsky.social discussed her research in @theguardian.com, which has found that young people are reluctant to start #families “when there is #economic uncertainty and apprehension about the future” @uosmedia.bsky.social

PM - The fertility rate in England and Wales falls to a new record low - BBC Sounds The fertility rate in England and Wales has fallen again to a new record low.

📻 Speaking about the latest #ONS #fertility data release yesterday, CPC-CG Director @janefalkingham.bsky.social discussed the economic and social factors affecting #birth rates globally and nationally with @evanhd.bsky.social on BBC Radio 4 PM - listen from 05:19

🔖 NEW - The first study to examine how having children in Britain has changed over 3 decades, by child order (1st, 2nd, 3rd...), comparing changes between England & Wales and Scotland

By Kulu, @bernicerunsonboba.bsky.social @sarahchristison.bsky.social @ann-berrington.bsky.social of FertilityTrends

One in five people do not expect to have as many children as they want UN study suggests economic strains, including job insecurity, among the biggest barriers to parenthood

🗞️🗞️ “While some individuals [in the UK] desire to remain #childfree, evidence suggests there are a significant number who want children but are currently unable to have them,” said @ann-berrington.bsky.social @uossocstatdemo.bsky.social, citing economic, health or partnership reasons

Image shows person sitting at a desk with their back to the camera, wearing headphones, their hand on a computer mouse, watching a webinar on a computer monitor. Text advertises: This CPC-CG Webinar will take place on Thursday 5 June at 12:00 UK Time. Anna Tarrant, Professor of Sociology at the University of Lincoln will be delivering a presentation entitled, "Partnering and parenting in the context of young fatherhood: how young fathers navigate family complexity, intimacy, and intergenerational ties".

THIS WEEK's #CPCCGWebinar ⤵️

👩‍💻 @profatarrant.bsky.social will discuss findings from the @ukri.org @followingyff.bsky.social study on how young #fathers navigate their romantic and intergenerational relationships over time in the context of early #parenthood

Register: www.cpc.ac.uk/activities/f...

Flexible hours ‘trap’ mothers into doing more parenting Women are still far more likely than fathers to stay at home with ill children and do the school run, a study has found

🗞️🗞️“Fathers contribute to #childcare but mothers — even those who work outside the home — are much more likely to handle the difficult jobs that get in the way of a regular working day and need to be done at a specific time," says @bernicerunsonboba.bsky.social in yesterday's @thetimes.com

<em>Journal of Marriage and Family</em> | NCFR Family Science Journal | Wiley Online Library Objective This study examines how mothers and fathers divide childcare tasks that interfere with paid work and whether there is an association with patterns of work and access to work flexibility. .....

📚NEW PAPER #Childcare tasks that interfere with the workday (staying home with ill children, dressing children, dropping children at school/childcare) are more often done by mothers BUT flexible work for fathers can help address the imbalance @bernicerunsonboba.bsky.social

doi.org/10.1111/jomf...

New evidence of how a sense of belonging is associated with the transition to parenthood.

Great to see that Lydia's final paper from her PhD has now been published - some important new evidence on how men's and women's economic circumstances influence partnership dynamics for the UK

Image shows the University of Southampton campus and sights from around Southampton. Text advertises 'The British Society for Population Studies presents PopFest2025! 6-8 July, University of Southampton. Open to all postgrad students. Registration Fees, Conference: £65 (incl. lunch and refreshments), Accommodation: £50 per person per night. Bursaries are available. Call for papers is now OPEN (Deadline 4 April).' Logos featured are BSPS, CPC, NCRM, University of Southampton, Connecting Generations and Population Geography Research Group.

Hey #population #postgraduate students - submit your abstracts on all things #demography, #migration, #health, #data and #spatial issues for #PopFest2025.

🏃🏃 Head to the info page for more about the research strands and submission:
www.cpc.ac.uk/activities/p...

@bspsuk.bsky.social @ncrm.ac.uk

According to today's #ONS #population projections, UK childbearing rates are projected to remain well below replacement level.

A new #ESRC-funded paper published by CPC-CG members reviews how changing partnership dynamics are impacting #fertility rates: www.demographic-research.org/articles/vol...