About the Authors

Sze Pui Pamela Tin

pamtin@hku.hk

Affiliation Division of Behavioural Sciences, School of Public Health, 5/F William MW Mong Block, 21 Sassoon Road, Pokfulam, The University of Hong Kong, Hong Kong SAR, China

Wendy W. T. Lam

Affiliation Division of Behavioural Sciences, School of Public Health, 5/F William MW Mong Block, 21 Sassoon Road, Pokfulam, The University of Hong Kong, Hong Kong SAR, China

Sungwon Yoon

Affiliation Division of Behavioural Sciences, School of Public Health, 5/F William MW Mong Block, 21 Sassoon Road, Pokfulam, The University of Hong Kong, Hong Kong SAR, China

Na Zhang

Affiliation Division of Behavioural Sciences, School of Public Health, 5/F William MW Mong Block, 21 Sassoon Road, Pokfulam, The University of Hong Kong, Hong Kong SAR, China

Nan Xia

Affiliation Division of Behavioural Sciences, School of Public Health, 5/F William MW Mong Block, 21 Sassoon Road, Pokfulam, The University of Hong Kong, Hong Kong SAR, China

Weiwei Zhang

Affiliation Division of Behavioural Sciences, School of Public Health, 5/F William MW Mong Block, 21 Sassoon Road, Pokfulam, The University of Hong Kong, Hong Kong SAR, China

Ke Ma

Affiliation Division of Behavioural Sciences, School of Public Health, 5/F William MW Mong Block, 21 Sassoon Road, Pokfulam, The University of Hong Kong, Hong Kong SAR, China

Richard Fielding

Affiliation Division of Behavioural Sciences, School of Public Health, 5/F William MW Mong Block, 21 Sassoon Road, Pokfulam, The University of Hong Kong, Hong Kong SAR, China

Competing Interests

This study was funded by QBE Hong Kong & Shanghai Insurance Limited. This does not alter the authors’ adherence to PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: SPPT WWTL SWY RF. Performed the experiments: SPPT WWTL NZ WZ KM RF. Analyzed the data: SPPT WWTL NX RF. Contributed reagents/materials/analysis tools: SPPT WWTL SWY NZ WZ KM RF. Wrote the paper: SPPT RF.