Findings are presented of the second phase of a longitudinal study of families created by single mothers by choice. Forty-four single heterosexual mothers were compared with 37 partnered heterosexual mothers, all with a donor-conceived child aged around 8-10 years. Standardized interview, observational, and questionnaire measures of maternal wellbeing, mother-child relationships and child adjustment were administered to mothers, children, and teachers. There were no differences in maternal mental health, the quality of mother-child relationships or children's emotional and behavioral problems between family types. However, higher levels of parenting stress and higher levels of children's prior adjustment difficulties were each associated with children's adjustment difficulties in middle childhood irrespective of family type. The findings suggest that the presence of two parents-or of a male parent-is not essential for children to flourish, and add to the growing body of evidence that family structure is less influential in children's adjustment than the quality of family relationships.

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Recent decades have seen a global trend towards delaying parenthood, referred to as the ‘postponement transition’. Whilst there is plentiful research regarding obstetric and paediatric outcomes related to delayed parenthood, relatively little is known about the psychosocial outcomes associated with advanced parental age during early and middle childhood. This mini-review examines the current literature regarding the psychosocial functioning of families headed by older parents. First, we give an overview of the literature that examines the psychological wellbeing of older first-time parents. We then review the literature regarding the quality of the parent–child relationship in older parent families. Finally, we discuss the psychosocial adjustment and cognitive development of children of older parents. We conclude with suggestions for future research avenues.

STUDY QUESTION How do parents understand and feel about identity-release egg donation? SUMMARY ANSWER Almost one-third of mothers and fathers did not understand the identifiable nature of their egg donation; mothers expressed complex and sometimes difficult feelings about the prospect of future donor–child contact. WHAT IS KNOWN ALREADY Identity-release egg donation has been the only treatment option available to patients wishing to pursue this route to parenthood in the UK since 2005. However, little is known about how well parents understand this legislation, and how they feel about potential donor–child contact. STUDY DESIGN, SIZE, DURATION This qualitative interview study included 61 mothers and 51 fathers whose 5-year-old children were conceived via identity-release egg donation. Interviews were conducted between April 2018 and December 2019. PARTICIPANTS/MATERIALS, SETTING, METHODS Data are reported from phase two of a longitudinal study of families created using open-identity egg donation. In-depth, semi-structured interviews were conducted with mothers and fathers. The interviews contained a section on what parents understood about the identifiable nature of the donor. These data were analysed using qualitative content analysis. Mothers who understood the identifiable nature of their egg donation (n = 44) were then asked about their thoughts and feelings regarding the prospect of future donor–child contact. Mothers’ narratives were analysed using thematic analysis. MAIN RESULTS AND THE ROLE OF CHANCE Almost one-third of parents (28% of mothers, n = 17; 31% of fathers, n = 16) did not understand the identifiable nature of their egg donation. Mothers’ and fathers’ misunderstandings about identity-release egg donation fell into two categories: (i) Unclear about identity-release and (ii) Belief that the donor is anonymous. Reflexive thematic analysis revealed that egg donation mothers’ feelings about identity-release donation could be understood via three organizing themes: (i) identity-release as a threat, (ii) acceptance: it is what it is and (iii) embracing identity-release. The findings indicated that egg donation mothers utilized various strategies to manage their feelings about identity-release egg donation in day-to-day life, and each theme was associated with at least one coping strategy. LIMITATIONS, REASONS FOR CAUTION Participants were predominantly from White, middle-class backgrounds. Further research with a more diverse sample is needed to improve generalizability. WIDER IMPLICATIONS OF THE FINDINGS These findings indicate that parents would benefit from more comprehensive provision of information, both at time of treatment and following conception, to ensure they have fully understood the nature of the donation. Parents may also benefit from follow-up care to help manage any complex or difficult feelings about donor–child contact. STUDY FUNDING/COMPETING INTEREST(s) This research was supported by a Wellcome Trust Collaborative Award [208013/Z/17/Z]. The authors have no conflicts of interest to declare. TRIAL REGISTRATION NUMBER N/A.

STUDY QUESTION What are children’s perspectives of the quality of their relationships with their parents and their own psychological well-being in families created using egg donation? SUMMARY ANSWER Children’s scores indicated good parent–child relationship quality and high levels of psychological well-being, with children in families created using egg donation rating their relationships with their mothers as higher in warmth/enjoyment than children in a comparison group of families created using IVF. WHAT IS KNOWN ALREADY Little is known about how children in families created through egg donation view their family relationships and their own psychological well-being. Research with 7-and-10-year-olds in anonymous egg donation families has indicated good parent–child relationship quality from children’s perspectives, but studies have not involved younger children or those conceived following identity-release egg donation. STUDY DESIGN, SIZE, DURATION This study included 50 children who had been born through egg donation and a comparison group of 43 children conceived through IVF with the parents’ own gametes. Data were collected between April 2018 and December 2019. The sample forms part of a larger longitudinal study examining family functioning in families created through fertility treatment. PARTICIPANTS/MATERIALS, SETTING, METHODS Children were aged 5 years old and had been born into families with different-sex couple parents. All families were visited at home. Children were administered the Berkeley Puppet Interview, a standardized assessment of parent–child relationship quality and psychological well-being. MAIN RESULTS AND THE ROLE OF CHANCE Children in egg donation families rated their relationships with their mothers as higher in warmth and enjoyment than did children in IVF families. No differences were found between the two family types in children’s ratings of the father–child relationship, or in children’s ratings of their own psychological well-being. LIMITATIONS, REASONS FOR CAUTION It is possible that children who did not consent to take part in the research had less positive perceptions of their family and themselves than children who participated. WIDER IMPLICATIONS OF THE FINDINGS The findings are relevant to UK clinics offering identity-release egg donation, to parents who have used egg donation to create their family and to individuals and couples considering their fertility treatment options. That children in egg donation families were more similar than different to children in IVF families in their self-concept and perception of their family relationships should prove reassuring. STUDY FUNDING/COMPETING INTEREST(S) This research was supported by a Wellcome Trust Collaborative Award [208013/Z/17]. The authors have no conflicts of interest to declare. TRIAL REGISTRATION NUMBER N/A.