Age (Years)

Mean shifts (mm)

Left

Ant

Sup

40 - 49 (1)

2.7

0.6

2.5

50 - 59 (6)

1.5

1.7

0.6

60 - 69 (9)

1.2

1.1

0.8

70 - 79 (7)

1.1

1.0

1.6

80 - 89 (4)

0.9

1.5

0.9