Figure 2 Demands (4 scales) by frequency of on-call duties. 49 51 60 54 58 62 45 46 53 42 49 60 quantitative demands emotional demands work-privacy conflict demands to hide emotions scale Demands: mean scale values by working hours per week Nübling et al. BMC Public Health 2010, 10:428 http://www.biomedcentral.com/1471-2458/10/428 Page 8 of 12 Demands: mean scale values by frequency of on-call duties 100 90 80 70 60 ean 50 m 40 30 20 10 0 100 90 80 70 60 ean 50 m 40 30 20 10 0 none in last month 1-5 in last month > 5 in last month full time: >=35 h part-time: 15-34 h part-time: < 15 h 53 51 36 58 56 47 47 46 41 quantitative demands emotional demands demands to hide emotions scale Figure 3 Demands (4 scales) by working hours per week. 50 45 28 work-privacy conflict