My sister was only 7 when she woke up in her bed one night covered in her own blood. She had sneezed and started a massive bleed which had something to do with her adenoids.
Rushed to hospital, but because of her being a JW there was confusion and hesitation about how to go about treating her. The hospital staff were so confused they didn't even to attach her to a drip. She lost litres of blood.
She survived, but a registered nurse of 40 years experience later told us that she had turned grey and was as close to death as she had ever seen anyone that had gone on to survive.
This was in the early 80's, when parents could still make the call on medical treatment (or lack of) for their children. Fast forward to 2018 and my sister is no longer a JW and neither is my Mother.
When I think about the blood issue I think about kids that were influenced by their parents and, wanting to please them, said no to transfusions. Some died, some survived.