title: Study protocol: a cluster randomized controlled trial to assess the effectiveness of a multi-pronged behavioural intervention to improve use of personal protective equipment among migrant workers exposed to organic solvents in small and medium-sized enterprises.
abstract: In China, most of migrant workers work in the small and medium-sized enterprises (SMEs) and are a vulnerable group for occupational health. Migrant workers are at increased risk of occupational health risks due to poor occupational health behaviours such as the low use of personal protective equipment (PPE). However, there is a lack of solid evidence regarding how to improve the use of PPE among migrant workers in SMEs. The current study will assess the effectiveness of a multi-pronged behavioural intervention designed to promote PPE utilization among migrant workers exposed to organic solvents in SMEs.
  
  
  
  This is a single blind, three-arm cluster randomized trial with 60 SMEs equally randomized to receive a top-down intervention (i.e. general health education and mHealth intervention provided by researchers) or a comprehensive intervention (which includes both top-down intervention and peer education) or a control condition (participants will not receive the intervention, but study measures will be obtained). Interventions will be conducted at the SMEs level for 6 months and all eligible migrant workers in these SMEs will be enrolled into the trial. The primary outcome is effective use of PPE during the last week. The secondary outcomes are occupational health knowledge and attitude and participation in occupational health check-up. Data will be collected and assessed at baseline; 3 months post baseline and the end of the intervention.
  
  
  
  This theory- and evidence based intervention will contribute to the limited evidence of behaviour change intervention in improving PPE utilization of migrant workers in SMEs, and provide timely evidence for the development of basic occupational health services in China and elsewhere with similar industrialization contexts.
  
  
  
  ChiCTR-IOR-15006929 . Registered on 16 August 2015.
authors.affiliation: Faculty of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.|Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.
authors.forename: Wen
authors.initials: W
authors.lastname: Chen
authors.affiliation: Faculty of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.|Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.
authors.forename: Tongyang
authors.initials: T
authors.lastname: Li
authors.affiliation: Faculty of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.|Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.
authors.forename: Guanyang
authors.initials: G
authors.lastname: Zou
authors.affiliation: Guangdong Prevention and Treatment Center for Occupational Diseases, 68 Haikang street, Xinhangxi Road, Guangzhou, 510300, People's Republic of China.
authors.forename: Xudong
authors.initials: X
authors.lastname: Li
authors.affiliation: Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.|Department of Health Policy and Management, Bloomberg School of Public Health, Johns Hopkins University, 615 N. Wolfe Street, Baltimore, MD, 21205, USA.
authors.forename: Leiyu
authors.initials: L
authors.lastname: Shi
authors.affiliation: Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.|Faculty of Health Management, School of Health Management, Guangzhou Medical University, 195 Dongfengxi Road, Guangzhou, 510182, People's Republic of China.
authors.forename: Shanshan
authors.initials: S
authors.lastname: Feng
authors.affiliation: Faculty of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.|Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.
authors.forename: Jingrong
authors.initials: J
authors.lastname: Shi
authors.affiliation: Faculty of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.|Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.
authors.forename: Fangjing
authors.initials: F
authors.lastname: Zhou
authors.affiliation: Faculty of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.|Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China.
authors.forename: Siqi
authors.initials: S
authors.lastname: Han
authors.affiliation: Faculty of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China. lingli@mail.sysu.edu.cn.|Sun Yat-sen center for Migrant Health Policy, Sun Yat-sen University, 74 Zhongshan Road 2, Guangzhou, 510080, People's Republic of China. lingli@mail.sysu.edu.cn.
authors.forename: Li
authors.initials: L
authors.lastname: Ling
mesh_terms: D000328:Adult; D001294:Attitude to Health; D001521:Behavior Therapy / Q000379:methods*; D002681:China; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016273:Occupational Exposure / Q000517:prevention & control*; D000067393:Personal Protective Equipment / Q000706:statistics & numerical data*; D016037:Single-Blind Method; D012997:Solvents / Q000009:adverse effects*; D014171:Transients and Migrants / Q000523:psychology*; D055549:Volatile Organic Compounds / Q000009:adverse effects*
chemical_list: D012997:Solvents; D055549:Volatile Organic Compounds
keywords: Behavioural intervention; Cluster randomized controlled trial; Migrant workers; Personal protective equipment