There are no clearly defined family profiles with an overall view of the predictors of early childhood caries (ECCs). The aim of our study was to identify the profiles of families that are particularly affected by ECCs. We also examined the factors that can be acted on to promote oral health.

In this single-centre cross-sectional study, the researchers examined the mouths of 300 children with caries and recorded the Decayed, Missing and Filled Teeth Index (dmft). These observations were supplemented by a questionnaire completed by the families, focusing in particular on their sociodemographic characteristics (e.g. age, parents’ professions and jobs, social assistance and family composition).

This work was conducted at Lille University Hospital between 2019 and 2024.

The participants included 300 caregiver-child dyads with children under the age of 6 years.

Childhood Caries Index (dmft) and family characteristics associated with ECCs.

A multiple correspondence analysis was used, followed by a hierarchical clustering on principal components analysis, to identify the family profiles associated with ECC risk.

Of the patients included in the study, 42% were girls, 58% were boys and their mean age was 4 years (±1.1 years). The mean dfmt index was 8.7 (±4.6); 77% of the participants had lesions on the smooth surfaces of the teeth, and 80% of the participants had a severe stage of caries disease. The analysis revealed three high-risk profiles based on the characteristics of the child’s mother and the family sibling composition. The first profile was larger families where the focal child was not the eldest. The second profile was families with foreign-born mothers and a low socioeconomic level. The third profile was families with mothers facing geographical and financial difficulties in accessing healthcare.

This study enabled us to identify the profiles of families at risk of caries. These at-risk profiles highlight the need to implement specific interventions acting at different levels and focused on oral health education in interprofessional practice during the key period of the first 1000 days of life. These factors could help to bridge the gap between oral health and general health, improve children’s oral health and reduce social health inequalities.

This human study has been ethically approved by the French Committee for the Protection of Individuals (N° 2019-A00827-50).

The protocol is recorded on clinicaltrials.gov, with ID: NCT04195607.

Urinary tract infections (UTIs) are highly prevalent and pose a significant burden among older adults. Accurate diagnosis in this population is challenging due to the high prevalence of pre-existing lower urinary tract symptoms, inability to express symptoms and asymptomatic bacteriuria. Current diagnostic tests are unreliable, often resulting in over- and underdiagnosis. A previous pilot study proposed a higher cut-off for pyuria and identified five promising biomarkers for the diagnosis of UTIs in older adults. The UTI-GOLD study aims to validate these five new biomarkers and the higher leucocyte cut-off as a diagnostic tool for UTIs in older people in a real-world setting.

Between August 2024 and December 2027, an observational multicentre diagnostic accuracy study is being conducted across primary, secondary and tertiary healthcare facilities in the Netherlands and the UK. Adults ≥65 years with a suspected UTI will be considered eligible. Patients with pre-existing decision-making incapacity or an indwelling catheter will be excluded. UTI will be defined according to an international consensus-based reference standard. Biomarkers will be measured by liquid chromatography-mass spectrometry (neutrophil gelatinase-associated lipocalin, tissue inhibitor of metalloproteinase 2 and CXC motif chemokine ligand 9) and enzyme-linked immunosorbent assay (interleukin 6 and azurocidin). Pyuria will be quantified by automated microscopy and/or flow cytometry. Diagnostic accuracy measures will be calculated using the receiver operating characteristic curves, and sensitivity, specificity, likelihood ratios and predictive values will be reported for optimal cut-offs.

The protocol was reviewed by the local Leiden University Medical Center research committee, who declared on 15 April 2024 that the medical research involving human subject act (Dutch abbreviation: WMO) does not apply to the current study (reference number nWMODIV2_2024025). The study also received approval from the NHS Research Ethics Committee in the UK (reference number 24/LO/0649).

The study findings will be published in a peer-reviewed journal, presented at academic congresses and shared with healthcare providers.

The study was registered at clinicaltrial.gov on the 24 September 2024 with registration number: NCT06610721.