Selahadin Ibrahim

Associate Scientist
MSc, Statistics, McMaster University

Selahadin Ibrahim is a vital member of the Institute for Work & Health’s biostatistics team. Since joining the Institute in 1996, he had provided his expertise and support to IWH researchers on the design, methods and data interpretation of their research projects.

However, Ibrahim did not start out in this field. It may be a surprise to many that his background is in a discipline that deals with the design, construction and maintenance of the physical and naturally built environment, including works like roads, bridges, canals, dams, and buildings: civil engineering! He earned his degree in civil engineering from Addis Ababa University in Ethiopia in 1983.

When he came to Canada in 1988, he changed his area of focus altogether. He earned an honours BSc in actuarial science and statistics from the University of Toronto in 1994, then a master's in statistics from McMaster University in Hamilton, Ont., three years later.

Ibrahim’s research interests include longitudinal analysis and multilevel modeling, social inequalities and health, and work stress and its adverse health consequences.

Current projects: 

Randomized control trial of the Employee Participation in Change (EPIC) program in Ontario's long-term care sector

Employment needs and experiences of workers with arthritis and diabetes: Keeping the boomers in the labour market

Developing leading indicators from occupational health and safety management audit data

Selected Publications: 

Jetha A, Chen C, Mustard C, Ibrahim S, Bielecky A, Beaton D, Smith P. Longitudinal examination of temporality in the association between chronic disease diagnosis and changes in work status and hours worked. Occupational and Environmental Medicine, 2017; 74:184-191; doi: 10.1136/oemed-2016-103569

Padkapayeva K, Chen C, Bielecky A, Ibrahim S, Mustard C, Beaton D, Smith P. Male-female differences in work activity limitations: Examining the relative contribution of chronic conditions and occupational characteristics. Journal of Occupational and Environmental Medicine, 2017; 59(1):6-11; doi:10.1097/JOM.0000000000000906

Wong IS, Smith PM, Ibrahim S, Mustard CA, Gignac MA. Mediating pathways and gender differences between shift work and subjective cognitive function.  American Journal of Epidemiology Occupational and Environmental Medicine, 2016; 73(11):753-760; doi: 10.1136/oemed-2016-103774

Bielecky A, Chen C, Ibrahim S, Beaton DE, Mustard CA, Smith PM. The impact of co-morbid mental and physical disorders on presenteeism. Scandinavian Journal of Work, Environment and Health, 2015; 41(6):554-564; doi: 10.5271/sjweh.3524

Chambers A, Ibrahim S, Etches J, Mustard C. Diverging trends in the incidence of occupational and nonoccupational injury in Ontario, 2004-2011. American Journal of Public Health. 2015; 105(2):338-343; doi: 10.2105/AJPH.2014.302223

Mustard C, Chambers A, Ibrahim S, Etches J, Smith P. Time trends in musculoskeletal disorders attributed to work exposures in Ontario using three independent data sources, 2004-2011. Occupational and Environmental Medicine, 2015; 72(4):252-257; doi:10.1136/oemed-2014-102442