Optimism in adults born preterm: Systematic review and individual-participant-data meta-analysis

• Rachel K. Robinson ,

  Roles Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing

  * E-mail: rachel.robinson@helsinki.fi

  Affiliation Department of Psychology & Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland

  https://orcid.org/0000-0002-6843-9103

  ⨯
• Kati Heinonen,

  Roles Data curation, Formal analysis, Funding acquisition, Investigation, Methodology, Supervision, Writing – review & editing

  Affiliations Department of Psychology & Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland, Welfare Sciences/Psychology, Faculty of Social Sciences, Tampere University, Tampere, Finland

  ⨯
• Polina Girchenko,

  Roles Data curation, Formal analysis, Investigation, Methodology, Writing – review & editing

  Affiliation Department of Psychology & Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland

  ⨯
• Marius Lahti-Pulkkinen,

  Roles Conceptualization, Methodology, Writing – review & editing

  Affiliations Department of Psychology & Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland, National Institute of Health and Welfare, Helsinki, Finland, University/British Heart Foundation Centre for Cardiovascular Science, Queen’s Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom

  ⨯
• Eero Kajantie,

  Roles Conceptualization, Data curation, Funding acquisition, Methodology, Supervision, Writing – review & editing

  Affiliations National Institute of Health and Welfare, Helsinki, Finland, PEDEGO Research Unit, Medical Research Center Oulu, Oulu University Hospital and University of Oulu Finland, Oulu, Finland, Children’s Hospital, Helsinki University Hospital and the University of Helsinki, Helsinki, Finland, Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway

  ⨯
• Petteri Hovi,

  Roles Data curation, Funding acquisition, Writing – review & editing

  Affiliation National Institute of Health and Welfare, Helsinki, Finland

  ⨯
• Aulikki Lano,

  Roles Data curation, Writing – review & editing

  Affiliation Children’s Hospital, Helsinki University Hospital and the University of Helsinki, Helsinki, Finland

  ⨯
• Sture Andersson,

  Roles Funding acquisition, Writing – review & editing

  Affiliation Children’s Hospital, Helsinki University Hospital and the University of Helsinki, Helsinki, Finland

  ⨯
• Johan G. Eriksson,

  Roles Funding acquisition, Methodology, Writing – review & editing

  Affiliations Department of General Practice Primary Health Care, University of Helsinki, Helsinki, Finland, Folkhälsan Research Center, Helsinki, Finland, Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research, Singapore, Singapore, Department of Obstetrics & Gynecology, National University of Singapore, Singapore, Singapore

  ⨯
• Dieter Wolke,

  Roles Data curation, Funding acquisition, Methodology, Writing – review & editing

  Affiliations Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Coventry, United Kingdom, Department of Psychology, University of Warwick, Coventry, United Kingdom

  https://orcid.org/0000-0003-0304-268X

  ⨯
• Sakari Lemola,

  Roles Conceptualization, Funding acquisition, Methodology, Project administration, Writing – review & editing

  Affiliations Mental Health and Wellbeing, Warwick Medical School, University of Warwick, Coventry, United Kingdom, Department of Psychology, University of Warwick, Coventry, United Kingdom, Department of Psychology, Bielefeld University, Bielefeld, Germany

  ⨯
• Katri Räikkönen

  Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Supervision, Writing – review & editing

  Affiliation Department of Psychology & Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland

  ⨯