text: 9.4% of the group of ‘Managers, professionals, technicians and associate professionals’ and also 9.4% 
  of the group of ‘Clerical support workers, service and sales workers’ report work-related health problems, 
  2.4% to 4% lower than the two groups with predominantly manual occupations. 
  
  Based on a systematic review of literature on the topic of health factors, a consortium of World Bank 
  and Harvard School of Public Health developed for the WHO in the early 1990s a new approach, the 
  **Global Burden of Disease (BoD)**. 205 This approach is meanwhile used by researchers and health 
  institutes across the globe.206 
  
  European Agency for Safety and Health at Work – EU-OSHA 
  80 