My blogger friend Nancy posted this chart a while back, and I want to have it for my own records. It's a great chart and I encourage everyone to make a copy for themselves.
There are more detailed charts out there, but this one is nice and basic.
Advances in medical care have made it possible for many premature infants to survive and develop normally. However, whether or not a premature infant will survive is still intimately tied to his or her gestational age:
21 weeks or less: 0% survival rate
22 weeks: 0-10% survival rate
23 weeks: 10-35% survival rate
24 weeks: 40-70% survival rate
25 weeks: 50-80% survival rate
26 weeks: 80-90% survival rate
27 weeks: greater than 90% survival rate
(note: many charts simply list the first number. This one gives a better range.)
Have you seen that chart for twins? This one is definitely the singleton chart.
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