Table 2 Gender- and Age differences in the BSI-18 scales and the GSI

Gender

F = 1.7 p < 0.20

F = 7.2 p < 0.007

F = 8.5 p < 0.004

F = 6.9 p < 0.009

η ² = 0.003

η ² = 0.003

η ² = 0.003

 Men (n = 1163)

1.36 (2.4)

1.56 (3.1)

1.26 (2.4)

4.19 (6.9)

 Women (n = 1353)

1.54 (2.7)

1.92 (3.3)

1.59 (2.7)

5.07 (7.8)

Age

F = 36.0 p < 0.0001

F = 5.2 p < 0.0001

F = 2.1 p < 0.05

F = 11.0 p < 0.0001

η ² = 0.079

η ² = 0.012

η ² = 0.005

η ² = 0.026

 I: 14–24 years (n = 270)

0.85 (2.2) I < V VI VII

1.57 (3.7) I < VII

1.40 (3.0)

3.83 (8.3) I < VII

 II: 25–34 years (n = 293)

0.70 (1.8) II < V VI VII

1.27 (2.5) II < VII

1.09 (2.1)

3.05 (5.7) II < VI VII

 III: 35–44 years (n = 410)

0.79 (1.7) III < V VI VII

1.36 (2.7) III < VII

1.35 (2.3)

3.50 (5.8) III < VII

 IV: 45–54 years (n = 436)

1.27 (2.4) IV < VI VII

2.0 (3.5)

1.59 (2.6)

4.85 (7.6) IV < VII

 V: 55–64 years (n = 415)

1.59 (2.6) V > I II III V < VII

1.89 (3.2)

1.54 (2.8)

5.02 (7.6) V < VII

 VI: 65–74 years (n = 440)

2.07 (2.8) VI > I II III IV VI < VII

1.77 (3.1)

1.35 (2.4)

5.19 (7.4) VI > II VI < VII

 VII: 75–94 years (n = 252)

3.17 (3.5) VII > I II III IV V VI

2.57 (3.8) VII > I II III

1.76 (3.0)

7.50 (9.0) VII > I II III IV V VI

Gender x Age

F = 1.2 p < 0.30

F = 0.7 p < 0.68

F = 0.9 p < 0.50

F = 0.8 p < 0.56