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Additional Information

Competing Interests

Con Hennessy and Mel McIntyre are employed by Open Applications Consulting Ltd.; Anne McCarthy is employed by Health Research Board; Giorgio Tamburlini and Laura Cogoy are employed by the Institute for Child Health, I.R.C.C.S. Materno Infantile Burlo Garofolo; José Díaz Huertas is employed by the Sociedad Española de Pediatría Social; Mika Gissler is employed by the National Institute for Health and Welfare THL; Csilla Kaposvári is employed by the Egészség Monitor; Paolo Meucci and Milda Cerniauskaite are employed by the Fondazione IRCCS, Istituto Neurologico Carlo Besta. The authors declare there are no competing interests.

Author Contributions

Anthony Staines conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

Michael Rigby conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Matilde Leonardi conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Ulrike Ravens-Sieberer conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Aleš Bourek conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Mitch E Blair conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Giorgio Tamburlini conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Margarida Gaspar de Matos conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Anne McCarthy conceived and designed the experiments, performed the experiments, reviewed drafts of the paper.

Veronika Ottová-Jordan conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Denise Alexander conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Jean Kilroe performed the experiments, analyzed the data.

Mel McIntyre conceived and designed the experiments, performed the experiments, wrote the paper, reviewed drafts of the paper.

Sophie Alexander conceived and designed the experiments, performed the experiments, analyzed the data.

Angela Brand conceived and designed the experiments, performed the experiments.

Allan Colver conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Candace Currie conceived and designed the experiments, performed the experiments, analyzed the data.

José A. Díaz Huertas performed the experiments, analyzed the data.

Mika Gissler conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Else-Karin Grøholt conceived and designed the experiments, performed the experiments, wrote the paper, reviewed drafts of the paper.

Geir Gunnlaugsson conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Csilla Kaposvári conceived and designed the experiments, performed the experiments, analyzed the data.

Reli Mechtler conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Antony R Morgan conceived and designed the experiments, performed the experiments, reviewed drafts of the paper.

Kinga Polańska conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Livia L Popescu conceived and designed the experiments, performed the experiments, analyzed the data, reviewed drafts of the paper.

Hein Raat conceived and designed the experiments, performed the experiments, analyzed the data.

Polonca Truden conceived and designed the experiments, performed the experiments, reviewed drafts of the paper.

Toomas Veidebaum conceived and designed the experiments, performed the experiments, reviewed drafts of the paper.

Anders Hjern conceived and designed the experiments, performed the experiments, analyzed the data, reviewed drafts of the paper.

Milda Cerniauskaite performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Lauren K Brennan performed the experiments, analyzed the data, reviewed drafts of the paper.

Laura Cogoy performed the experiments, analyzed the data.

Gina Tomé performed the experiments, analyzed the data.

Con Hennessy conceived and designed the experiments, performed the experiments.

Wojciech Hanke performed the experiments, analyzed the data.

Maria Roth conceived and designed the experiments, performed the experiments, reviewed drafts of the paper.

Rachel O'Sullivan performed the experiments, reviewed drafts of the paper.

Paolo Meucci performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Carsten Rasche performed the experiments, analyzed the data.

Teresa Santos performed the experiments, analyzed the data.

Treasa McVeigh performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Tania Gaspar performed the experiments, analyzed the data.

Lucia Ramiro conceived and designed the experiments, performed the experiments, analyzed the data, reviewed drafts of the paper.

Lennart Köhler conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper, reviewed drafts of the paper.

Human Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Ethical approval was secured for the fieldwork elements of this project from the institutional ethics committees in the individual partners undertaking that work. Consent to take part in surveys was verbal, or given in written form, depending on the methods being used. Full details will appear in the reports of individual pieces of work.

Grant Disclosures

The following grant information was disclosed by the authors:

European Commission DG Research 242181

Funding

The RICHE project was funded by contract no 242181 from the European Commission DG Research, under the FP7 call HEALTH-2009-3.3-5: European child health research platform. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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