Table 1.

Ages of the participants (n=8194).

Age characteristics		Participant values
Age (years), mean (SD)		40.0 (15.1)
Age (years), median		39
Age (years), n (%)
	<20	842 (10.3)
	20-29	1597 (19.5)
	30-39	1813 (22.1)
	40-49	1725 (21.1)
	50-59	1227 (15.0)
	60-69	655 (8.0)
	70-79	253 (3.1)
	80-89	62 (0.8)
	>89	20 (0.2)