The ASQ calculator app provides adjusted age calculations for children born up to 13 weeks premature. Because it does not provide options over 13 weeks premature, does this mean these tools are not valid and reliable for infants born at 14 weeks premature or earlier?

ASQ-3 and ASQ:SE-2 can be used with infants born more than 13 weeks premature. When the iOS version of the calculator app was developed several years ago, infants that survived when born more than 13 weeks premature were rare. We plan to update the iOS app in the future but do not have a timeline at this point. The age calculator on our website and the Android version of the app allow you to calculate adjusted ages for children born up to 20 weeks premature.