Sentinel Injuries
This bruising clinical decision rule has a 96% sensitivity and an 87% specificity for abuse in children < 4 years old.

Accessible Version
We're going to switch gears away from the sheets et al. Study and move on to a study that was published First, approximately 12 to 15 years ago and then updated in 2021. This is a study by Pierce et al. And it produced a mnemonic that all child abuse pediatricians use and are aware of. And I think it's important for this group to be aware of it as well.
And that mnemonic is 104 faces P. And this refers to or is a bruising clinical decision rule that has a 96% sensitivity And an 87% specificity for abuse in children less than four years of age. And so I think it's really important to look at this slide
And recognize what's in the boxes. So on the left in the purple box, it's pointing to specific areas of the body Where if you see bruising in any of these spaces on a child who's less than four years of age.
You should suspect child physical abuse. And those areas include torso for T.
E is ears. N is neck.
And then the faces is F is frenulum A is angle of the jaw.
See his cheeks, the fleshy part, not the part that sits over the bone.
Use eyelids. And S is subconjunctiva.
The next box shows us that any brews anywhere on a very young infant and in study, they looked at babies less than four months of age any bruise anywhere has a high sensitivity and specificity for child physical abuse.
And then the last part of the slide in green, or the last part of the graphic in green is a reminder about pattern bruising. So if you see a handprint, if you see a belt mark or, oh.
A linear mark that could be from a linear from charging cable.
We should be concerned about child physical abuse. And this is a lovely publication and decision rule for child abuse pediatricians and other medical professionals in the field to be able to use Because we don't have a lot of other specific decision rules to help us.