Fig. 1From: Occupational health check-ups and health-promoting programs and asthmaParticipation in occupational health check-up (1) no asthma, in 1998 (2) asthma, in 1998 (3) no asthma, in 2003 (4) asthma, in 2003 (upper panel). Participation in health promoting program participation in 2003 (lower panel)Back to article page