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. 2014 Nov 4;9(11):e111404. doi: 10.1371/journal.pone.0111404

Table 1. Characteristics of Sample.

Men Women
n = 132 n = 62
Average age (M, SD) Baseline (1993–1995) 62.8 (0.9) 62.9 (0.9)
First follow up (1997–1998) 66.8 (0.9) 66.7 (1.0)
Second follow up (2004–2006) 74.1 (0.9) 74.0 (0.9)
Average duration of the current relationship MP 74 years (M, SD) 46.4 (8.0) 48.0 (8.0)
Duration of current relationship MP 74 years (n, %) 21 to under 30 years 10 (7.6) 4 (6.5)
30 to under 40 years 8 (6.1) 5 (8.1)
40 to under 50 years 56 (42.4) 15 (24.2)
50 and more years 58 (43.9) 38 (61.3)
Number of marriages MP 74 years (n, %) 1 114 (86.4) 54 (87.1)
2 15 (11.4) 8 (12.9)
3 3 (2.3) 0
Average duration of education in years (M, SD) 14.1 (2.6) 13.1 (3.1)
Duration of education (n, %) 8 to 9 years 3 (2.3) 11 (17.7)
10 to 15 years 90 (68.2) 36 (58.1)
16 to 18 years 39 (29.5) 15 (24.2)
Occupation (n, %) Higher-grade professionals 58 (43.9) 13 (21.0)
Lower-grade professionals 16 (12.1) 15 (24.2)
Routine non-manual employees 7 (5.3) 10 (16.1)
Self-employed, artists 8 (6.1) 3 (4.8)
Employed technicians; supervisors 10 (7.6) 2 (3.2)
Skilled manual workers 29 (22.0) 5 (8.1)
Semi-skilled/unskilled manual workers 4 (3.0) 14 (22.6)
Retirement (n, %) Baseline (1994–1995) 100 (75.8) 59 (95.2)
First follow up (1997–1998) 132 (100.0) 62 (100.0)
Physical health (M, SD)a Baseline (1994–1995) 2.3 (0.8) 2.4 (0.9)
First follow up (1997–1998) 2.5 (0.7) 2.6 (0.7)
Second follow up (2004–2006) 2.5 (0.8) 2.5 (0.7)
a

Assessment of physical health by a physician based on the history, physical assessment and blood tests using a six-point-scale: 1 =  very good, 2 =  good, 3 =  satisfactory, 4 =  sufficient, 5 =  poor, 6 =  very poor.

M: mean; SD: standard deviation.