Lluís Mangot-Sala was responsible for the data cleaning and harmonization, performed the statistical analyses and wrote the manuscript. Khoa A. Tran carried out the literature review and wrote a first draft of the introduction. Aart C. Liefbroer and Nynke Smidt obtained funding for the study, supervised it and reviewed the final versions of the manuscript. The study concept and design, acquisition and interpretation of data, and the critical revision of the analyses and the manuscript were carried out by Lluís Mangot-Sala, Aart C. Liefbroer and Nynke Smidt. All authors have read and approved the manuscript for submission. None of the original material contained in the manuscript has been submitted for consideration nor will any of it be published elsewhere.
