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Table 5.

Comparison between the two identified mutations (c.367+1G>A and c.768dupT) (clinical presentation and response to treatment).

c.768dupT (n = 15) c.367+1G>A (n = 12)
Homozygous (n = 10) Heterozygous (n = 5) Homozygous (n = 8) Heterozygous (n = 4)
Clinical presentation:
 Bone pain 9/10 3/5 7/8 4/4
 Short stature 4/10 2/5 5/8 1/4
 Limitation of activity 6/10 4/5 7/8 1/4
 Bone deformity 3/10 0/5 4/8 1/4
 Gait abnormality 4/10 0/5 2/8 1/4
 Hypocalcemic manifestation 2/10 0/5 2/8 0/4
Abnormal bone profile 8/10 2/5 8/8 2/4
Response to treatment
 Yes 5/10 5/5 8/8 4/4
 No 5/10 0/5 0/8 0/4
Maintenance therapy
 Weekly 4/10 0/5 2/8 1/4
 Twice monthly 1/10 1/5 2/8 0/4
 Monthly 0/10 4/5 4/8 3/4
 1,25-(OH)2 vitamin D 5/10 0/5 0/8 0/3