TABLE 1.

Characteristics of Study Population by Intervention Group at the Baseline and During Follow-Up

	All (N = 684)	Intervention Group (N = 350)	Control Group (N = 334)	Difference Between the Groups (t test, P)	Sum of Absences Per Year in Intervention/Control Group
Demographic variables (N, % or Mean, SD)
Sex				Chi-square P = 0.131
Men	85 (12%)	50 (14%)	35 (10%)
Women	599 (88%)	300 (86%)	299 (90%)
Age	50.02 (6.53)	50.44 (6.57)	49.58 (6.46)	−1.58, P = 0.116
Baseline sickness absence; Mean per person/year (SD)
Sickness absence days	11.85 (27.88)	10.93 (28.50)	12.81 (27.23)	0.89, P = 0.375	3,876/4,270
Sickness absence episodes	1.75 (2.13)	1.62 (1.92)	1.88 (2.32)	1.60, P = 0.110	580/622
Short episodes (<4 days)	1.20 (1.57)	1.12 (1.46)	1.29 (1.67)	1.47, P = 0.142	398/427
Long episodes (≥4 days)	0.54 (1.00)	0.50 (0.89)	0.58 (1.11)	1.10, P = 0.272	182/195
Longer episodes (>14 days)	0.14 (0.39)	0.12 (0.35)	0.16 (0.42)	1.11, P = 0.267	43/52
Sickness absence during follow-up; Mean per person/year (SD)
Sickness absence days	13.61 (29.23)	12.22 (24.12)	15.07 (33.74)	1.56, P = 0.120	4,288/5,020
Sickness absence episodes	1.82 (2.10)	1.76 (1.94)	1.90 (2.26)	1.27, P = 0.205	619/627
Short episodes (<4 days)	1.26 (1.58)	1.22 (1.45)	1.31 (1.70)	1.22, P = 0.223	430/433
Long episodes (≥4 days)	0.56 (0.83)	0.58 (0.86)	0.54 (0.80)	1.01, P = 0.314	189/194
Longer episodes (>14 days)	0.16 (0.33)	0.15 (0.30)	0.17 (0.37)	0.58, P = 0.565	52/55