Table 1.

Characteristics of the bone study group and the Australian RTT population greater than 4 years who did not participate in the study

	Bone study group n=97	Remainder of RTT population >4 years n=177
*Age mean±SD	15.00 ± 7.16	10.09 ± 7.10
**Epilepsy n(%)
No	24(24.7%)	28(16.1%)
Yes	73(75.3%)	146(83.9%)
§Mutation n(%)
C-Terminal	12(12.4%)	10(5.9%)
Large Deletion	7(7.2%)	7(4.1%)
No Mutation	20(20.6%)	37(21.9%)
Other	9(9.3%)	20(11.8%)
p.R106W	3(3.1%)	5(3.0%)
p.R133C	6(6.2%)	12(7.16%)
p.R168X	10(10.3%)	9(5.3%)
p.R255X	5(5.2%)	9(5.3%)
p.R270X	3(3.1%)	12(7.1%)
p.R294X	7(7.2%)	11(6.5%)
p.R306C	6(6.2%)	7(4.1%)
T158M	7(7.2%)	13(7.7%)
Not tested	2(2.1%)	14(8.3%)

^*p=0.001

^**p=0.363

^§p=0.0833