Table 1. Department and worker characteristics of the analyzed population.

	InterventionGroup	ControlGroup	Total
Departments	(N = 119)	(N = 117)	(N = 236)
Size of department, median (range)	5 (1–86)	4 (1–133)	4 (1–133)
Administrative Departments	52 (44%)	52 (44%)	104 (44%)
Traffic Police Departments	15 (13%)	9 (8%)	24 (10%)
Educational Departments	52 (44%)	56 (48%)	108 (46%)

Data are median (IQR) and n (%) unless otherwise indicated.

TTH = tension-type headache, M = migraine, MP = myogenous neck/shoulder pain.