Doubling times for betas between 64 and 128

695 Twins Pregnancies In This Range

Doubling TimeNumber of Pregnancies in this range
9 - 12 hours   (2)
12 - 15 hours   (2)
15 - 19 hours   (11)
19 - 24 hours   (42)
24 - 30 hours   (162)
30 - 38 hours   (248)
38 - 49 hours   (154)
49 - 62 hours   (50)
62 - 78 hours   (20)
78 - 98 hours   (2)
98 - 125 hours   (0)
125 - 157 hours   (2)