About the Authors

Chia-Yi Wu

jennycyw@ntu.edu.tw

Affiliation Department of Nursing, College of Medicine, National Taiwan University, Taipei, Taiwan

Chin-Kuo Chang

Affiliation Department of Health Service & Population Research, Institute of Psychiatry, King’s College London, London, United Kingdom

Debbie Robson

Affiliation Department of Health Service & Population Research, Institute of Psychiatry, King’s College London, London, United Kingdom

Richard Jackson

Affiliation Department of Health Service & Population Research, Institute of Psychiatry, King’s College London, London, United Kingdom

Shaw-Ji Chen

Affiliations Mackay Memorial Hospital Taitung Branch, Taitung, Taiwan, School of Medicine, Buddhist Tzu Chi University, Hualien, Taiwan

Richard D. Hayes

Affiliation Department of Health Service & Population Research, Institute of Psychiatry, King’s College London, London, United Kingdom

Robert Stewart

Affiliation Department of Health Service & Population Research, Institute of Psychiatry, King’s College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CY-W RS. Performed the experiments: CY-W CK-C. Analyzed the data: RS CY-W. Contributed reagents/materials/analysis tools: DR CK-C SJ-C RH. Wrote the manuscript: CY-W DR RS. Made the source of software used in the study available online and drew the diagram of data extraction: RJ.