From: Productivity losses attributable to headache, and their attempted recovery, in a heavy-manufacturing workforce in Turkey: implications for employers and politicians
Age range (years)
20–24
25–29
30–34
35–39
≥40
(n = 415)
(n = 1,454)
(n = 2,161)
(n = 1,331)
(n = 555)
Absenteeism
0.05
0.04
0.01
Presenteeism
0.59
0.61
0.57
0.44
0.17
Total productivity loss
0.64
0.66
0.45
0.18