Table 2.

Genotype distribution by age group

Age	Genotype									Total
	1a	1b	1	2	3	4	5	6	Mixt
0-20
n	3	1	-	-	-	1	-	-	1	6
%	50.0	16.7	-	-	-	16.7	-	-	16.7	100
21-30
n	5	11	-	-	3	1	-	-	1	21
%	23.8	52.4	-	-	14.3	4.8	-	-	4.8	100
31-40
n	4	33	2	1	11	-	-	-	1	52
%	7.7	63.5	3.8	1.9	21.2	-	-	-	1.9	100
41-50
n	18	24	-	1	8	1	-	-	4	56
%	32.1	42.9	-	1.8	14.3	1.8	-	-	7.1	100
51-60
n	6	47	1	2	5	3	1	-	1	66
%	9.1	71.2	1.5	3.0	7.6	4.5	1.5	-	1.5	100
61-70
n	6	72	2	6	5	4	2	-	1	98
%	6.1	73.5	2.0	6.1	5.1	4.1	2.0	-	1.0	100
71-
n	-	73	5	3	2	1	-	-	2	86
%	-	84.9	5.8	3.5	2.3	1.2	-	-	2.3	100
Total
n	42	261	10	13	34	11	3	-	11	385
%	10.9	67.8	2.6	3.4	8.8	2.9	0.8	-	2.9	100