Table 3.

The MLPA probe copy numbers of SMA-related genes in 212 Chinese healthy individuals

		MLPA probe copy number
	Total	SMN1 / SMN2				SMN1		SMN2		NAIP
Group	N = 212	Exon1	Exon4	Exon6	Exon8	Exon7	Exon8	Exon7	Exon8	Exon13	Exon5
1	117(55.2%)	4-5	4-5	4	4-5	2	2	2	2	2	2
2	1(0.5%)	4	4	4	4	2	3	2	1	2	2
3	1(0.5%)	4	4-5	4	4	2	1	2	3	2	2
4	54(25.4%)	3-4	3-4	3	3-4	2	2	1	1	2	2
5	1(0.5%)	3	3	3	3	2	3	1-2	0	2	2
6	7(3.3%)	3-4	3	3-4	3-4	2	2	1	1	2	3
7	1(0.5%)	3-4	3-4	3-4	3	2	2	1	1	2	4
8	4(1.9%)	2	2	2	2	2	2	0	0	1	2
9	5(2.3%)	2	2-3	2-3	2-3	2	2	0	0	1	3
10	1(0.5%)	3	3	3-4	3-4	2	2	1	1	1	1
11	5(2.3%)	4	4-5	4	4	2	2	2	2	2	3
12	1(0.5%)	4	4-5	4	4-5	2	1	2	3	2	3
13	2(0.9%)	4	4-5	4	4-5	2	3	2	1	2	3
14	2(0.9%)	4	4	4	4	3	3	1	1	2	2
15	3(1.4%)	4	4-5	4	4-5	2	2	2	2	2	1
16	2(0.9%)	4-5	5	5	4-5	2	2	3	3	2	2
17	1(0.5%)	4	4-5	4	5	1	2	1	2	2	2
18	1(0.5%)	4-5	5	5	4-5	3	3	2	2	2	3
19	1(0.5%)	4-5	5	4-5	5	3	3	2	2	2	1
20	1(0.5%)	3	3-4	3-4	3-4	1	1	2	2	2	1
21	1(0.5%)	4	4	4	4	3	3	1	1	2	3