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Deciding if and when might be the 'optimal' time for a person living with dementia to move to a care home is often difficult for the individual, family and practitioners. In this study, we describe the outcome of a factorial survey conducted with 100 dementia care practitioners (a frontline health or social care worker who works with people living with dementia) in England, which investigated factors used in deciding when a person living with dementia moves to a care home. Using findings from qualitative interviews with older people living with dementia, family carers, care home managers and social workers, we identified four factors that appeared to influence the decision to move to a care home: (1) Family carers' ability to support the person with daily activities, (2) amount of support provided by home care workers, (3) level of risk of harm and (4) the person living with dementia's wishes. These factors were then randomised within skeleton vignettes that told the story of a fictitious woman (Jane) living with dementia at home with her husband. Fifty‐four variations of the vignettes were produced and randomly assigned to 100 surveys. A total of 100 volunteer dementia care practitioners (78% female, 54% over 50 years of age) received their own personalised online survey link via email and were asked to read each vignette and decide whether to suggest Jane (a) move to a care home or (b) continue living at home. Results indicated that Jane's wishes principally drove most dementia care practitioners' decision on whether to suggest a move to a care home or stay living at home (odds ratio = 6.5–19.5). Findings will inform a better understanding of the factors that contribute toward a decision to move to a care home and be of relevance to policy, practice, training and support. [ABSTRACT FROM AUTHOR]

Summary: Background: Recessive forms of congenital ichthyosis encompass a group of rare inherited disorders of keratinization leading to dry, scaly skin. So far, 13 genes have been implicated, but there is a paucity of data on genotype–phenotype correlation in some populations. Objectives: We compiled an English cohort of 146 individuals with recessive ichthyosis and assessed genotype–phenotype correlation. Methods: Deep phenotyping was undertaken by history‐taking and clinical examination. DNA was screened for mutations using a next‐generation sequencing ichthyosis gene panel and Sanger sequencing. Results: Cases were recruited from 13 National Health Service sites in England, with 65% of patients aged < 16 years at enrolment. Pathogenic biallelic mutations were found in 83% of cases, with the candidate gene spread as follows: TGM1 29%, NIPAL4 12%, ABCA12 12%, ALOX12B 9%, ALOXE3 7%, SLC27A4 5%, CERS3 3%, CYP4F22 3%, PNPLA1 2%, SDR9C7 1%. Clinically, a new sign, an anteriorly overfolded ear at birth, was noted in 43% of patients with ALOX12B mutations. The need for intensive care stay (P = 0·004), and hand deformities (P < 0·001), were associated with ABCA12 mutations. Self‐improving collodion ichthyosis occurred in 8% of the cases (mostly TGM1 and ALOX12B mutations) but could not be predicted precisely from neonatal phenotype or genotype. Conclusions: These data refine genotype–phenotype correlation for recessive forms of ichthyosis in England, demonstrating the spectrum of disease features and comorbidities, as well as the gene pathologies therein. Collectively, the data from these patients provide a valuable resource for further clinical assessment, improving clinical care and the possibility of future stratified management. What's already known about this topic? Recessive forms of ichthyosis are rare but often difficult to diagnose.Mutations in 13 genes are known to cause recessive forms of ichthyosis: ABCA12, ALOX12B, ALOXE3, CERS3, CYP4F22, LIPN, NIPAL4, PNPLA1, SDR9C7, SLC27A4, SULT2B1, ST14 and TGM1.Some phenotypic features may associate with certain gene mutations, but paradigms for genotype–phenotype correlation need refining. What does this study add? The genotypic spectrum of recessive ichthyosis in England (based on 146 cases) comprises TGM1 (29%), NIPAL4 (12%), ABCA12 (12%), ALOX12B (9%), ALOXE3 (7%), SLC27A4 (5%), CERS3 (3%), CYP4F22 (3%), PNPLA1 (2%) and SDR9C7 (1%).New or particular phenotypic clues were defined for mutations in ALOX12B, ABCA12, CYP4F22, NIPAL4, SDR9C7 and TGM1, either in neonates or in later life, which allow for greater diagnostic precision.In around 17% of cases, the molecular basis of recessive ichthyosis remains unknown. Linked Editorial:Steele and O'Toole. Br J Dermatol 2020; 182:521–522. Plain language summary available online [ABSTRACT FROM AUTHOR]