Table 3

Anthropometric measurements in osteogenesis imperfecta (OI)

ArmspanArmspan/standing height(SILL SDS) −
(sitting height SDS)
Head circumference(Head circumference SDS) − (standing height SDS)
Mean SDSStudent’s t testRatioStudent’s t testDifferenceStudent’s t testMean SDSStudent’s t testDifferenceStudent’s t test
Children
Sillence type
 I−1.01:3/4
p < 0.01
1.01:3/4
p < 0.01
+2.1NS+1.0NS+2.01:3/4
p < 0.01
 III−3.71.1+2.7+0.6+6.0
 IV−2.01.1+3.0+0.3+3.1
Collagen defect
 Quantitative−1.4p = 0.051.0p < 0.01+2.0NS+0.3NS+1.6p < 0.01
 Qualitative−3.11.1+2.8+0.8+5.4
Adults
Sillence type
 I−2.11:3/4
p < 0.05
1.01:3/4
p < 0.05
+2.2NS+1.6NS+3.81:3/4
p < 0.01
 III−3.11.2+2.9+1.9+11.1
 IV−2.61.0+2.5+1.8+5.2
Collagen defect
 Quantitative−2.0p < 0.051.0p < 0.05+2.0NS+1.5NS+3.4p < 0.01
 Qualitative−2.91.1+2.4+2.0+7.8
  • The Student’s t test was performed between OI type I and type III/IV (1:3/4), as well as between quantitative and qualitative collagen defects.

  • SILL, subischial leg length.