BMJ Publishing Group Limited (BMJ) disclaims all liability and responsibility arising from any reliance Supplemental material placed on this supplemental material which has been supplied by the author(s) Occup Environ Med Epidemiology of chronic kidney disease of undetermined aetiology in Taiwanese farmers: a cross-sectional study from Changhua Community-based Integrated Screening programme Authors: Jerry Che-Jui Chang1,2, Hsiao-Yu Yang1,3,4 Affiliations: 1 Institute of Occupational and Environmental Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan 2 Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan 3 Department of Public Health, National Taiwan University College of Public Health, Taipei, Taiwan 4 Department of Environmental and Occupational Medicine, National Taiwan University Hospital, Taipei, Taiwan Corresponding author: Dr. Hsiao-Yu Yang Institute of Occupational and Environmental Health Sciences National Taiwan University College of Public Health, Taipei, Taiwan
[email protected] Chang JC-J, Yang H-Y. Occup Environ Med 2021;0:1–10. doi: 10.1136/oemed-2021-107369 BMJ Publishing Group Limited (BMJ) disclaims all liability and responsibility arising from any reliance Supplemental material placed on this supplemental material which has been supplied by the author(s) Occup Environ Med Appendix 1. Rice-farming industry and environmental hazards in Changhua Taiwan is an island country located on the edge of Eurasia with a tropical and subtropical climate. Due to the ideal conditions of high temperature and rain, Taiwan has a long growing season for crops and has fewer restrictions on cultivation types.1 The number of Taiwan's rice farmers is about 228 thousand, and the planting area is about 670,000 acres (2,700 km²).