Table 1.

Descriptive Statistics at Initial Testing for Entire Sample

	Age in years	Years of education	Female (%)	Birth cohort	No. waves tested	Living as a couple (%)	Tested in 2010 (%)
M	62.96	11.85	57	1931	5.51	57	44
SD	11.25	3.46	0.49	12.62	3.04	0.50	0.50
Minimum	50.00	0.00	0 = male	1890	1.00	0 = living alone	0 = not tested in 2010
Maximum	103.00	17.00	1 = female	1953	10.00	1 = living as a couple	1 = tested in 2010

Note. SD = standard deviation.