“…Measure for reduced productivity at work/ while working 31 (39, 41-44, 56, 60-65, 69, 70, 72, 77, 82, 87, 89, 94, 95, 98, 103, 104, 114, 115, 118, 119, 123, 124, 128) Source presenteeism Employee survey 18 (41, 44,56,62,64,69,72,82,87,89,94,95,98,104,115,118,119, 123) Simulated / assumptions 7 (39, 43, 44,103,114,124, 128) Previous studies 6 (42,60,61,63,65,70) Firm data 1 (115) Employer survey 1 (77) Survey/instrument presenteeism 56,62,69,82,94,95,118,119,123) Days (unspecified) 49 (39, 40, 42, 46,49,(51)(52)(53)(54)58,60,62,64,66,71,72,74,75,(77)(78)…”