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Table 3 The distribution of patients in the three subgroups

From: Alpha-mannosidosis: correlation between phenotype, genotype and mutant MAN2B1 subcellular localisation

Genotype/subcellular localisation subgroups

N

Age +/-SD, Mean (years)

Age Median (years)

Age Minimum (years)

Age Maximum (years)

Subgroup 1

21

22.9 ± 11.6

23.0

5.7

42.1

Two null-mutations (nonsense, frameshift, large truncation)

Subgroup 2

32

17.9 ± 7.6

17.9

6.0

35.0

Missense/in-frame dup/del localised to the ER

Subgroup 3

13

17.4 ± 7.8

17.3

5.4

29.0

Missense/in-frame dup/del localised to the lysosomes

Total

66

19.4 ± 9.3

17.3

5.4

42.1