Table IV. Mean score of SSS test obtained in 102 healthy subjects divided into 7 age groups.

Age (years)	13-23	24-33	34-43	44-53	54-63	64-73	74-88
Subjects (n. 102)	11	16	18	23	14	15	5
Mean SSS test score	11.45	11.50	11.50	11.61	11.64	11.33	11
SD	0.52	0.51	0.51	0.49	0.49	0.48	0
Female (n. 54)	4	4	8	15	11	9	3
Mean SSS test score	11.75	11.50	11.37	11.60	11.63	11.44	11
SD	0.50	0.57	0.52	0.51	0.50	0.53	0
Male (n. 48)	7	12	10	8	3	6	2
Mean SSS test score	11.28	11.50	11.60	11.62	11.66	11.16	11
SD	0.48	0.52	0.52	0.52	0.57	0.41	0