Women
Reference range: 22 ±6
Mildly abnormal: 29-33
Moderately abnormal: 34-39
Severely abnormal: ≥40
Men
Reference range: 22 ±6
Mildly abnormal: 29-33
Moderately abnormal: 34-39
Severely abnormal: ≥40

BSA, Body surface area; LA, left atrial.
The LA volume indexed to BSA is recommended and best validated for LA volume estimation.