"The Haller index is affected by the vertebral level at which it is measured and is largest cranially 3. For consistency, therefore, it is recommended to calculate the largest Haller index in pectus excavatum patients by obtaining the AP diameter at the deepest point of the sternum 1."
"Females have a greater Haller index than males in early childhood (from 0-6 years of age) and in teenage years (12-18 years of age) 5."
Expected headings
"Age"
"Sex"