Table 1.

Review of young Nordic workers—inclusion and exclusion criteria

Topic	Inclusion	Exclusion
Study type	•Qualitative studies • Quantitative studies - Prospective - Cross-sectional - Intervention - Case–control	•Commentary articles •Review articles •Studies that are not peer-reviewed •Reports
Population of interest: Age	•Studies in which one or more of the categorized populations is included in the age range 15–29 years	•Studies in which people aged 15–29 years and are part of a larger population, but not analyzed separately
Population of interest: Workers	•Studies with focus on workers or transition to work •Work includes paid work, apprentices, trainee, part-time work, informal employment, and temporary work	•Studies that focus on young adults with no focus on work •Professional athletes •Military training •Birth cohorts that focus on factors in childhood and work disability
Population of interest: Countries	•Studies that include populations from the five Nordic countries (Denmark, Finland, Iceland, Norway, and Sweden)	•Studies in which populations from the Nordic countries are part of a larger population, but not analyzed separately
Outcomes	•Occupational accidents/injuries •Work-related health	•Outcomes with no relevance to work
Risk factors	•A clearly defined risk factor including safety culture, attitudes, mechanical factors, physical factors, psychosocial factors, gender, industry, sector, profession, family background, etc.	•No risk factors are defined or analyzed in the study •Studies of young workers and wage incitement or economic regression/crises in society as exposure variables
Language	•Studies that are written in English or one of the Nordic languages
Publication period	•Studies published from 1994 to April 2014