Doubling times for betas between 256 and 512

2640 Twins Pregnancies In This Range

Doubling TimeNumber of Pregnancies in this range
11 - 14 hours   (2)
14 - 17 hours   (1)
17 - 22 hours   (12)
22 - 27 hours   (74)
27 - 34 hours   (560)
34 - 42 hours   (1106)
42 - 52 hours   (649)
52 - 65 hours   (169)
65 - 81 hours   (52)
81 - 101 hours   (10)
101 - 126 hours   (3)
126 - 157 hours   (2)