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. Author manuscript; available in PMC: 2016 May 10.
Published in final edited form as: Paediatr Perinat Epidemiol. 2014 Sep;28(5):391–399. doi: 10.1111/ppe.12141

Table 2.

Proportions of cycles with intent to avoid, conceive, or unsure, and associated crude fecundability, by assigned treatment group, including or excluding the first cyclea

Including the first cycle Excluding the first cycle

Number (%) of all
cycles
Percentage of cycles
resulting in pregnancy
(CI 95%)
Number (%) of all
cycles
Percentage of cycles
resulting in pregnancy
(CI 95%)

Control CrMS Control CrMS
Cycle intention
  To conceive 137 (60) 132 (54) 31
(23, 38)
36
(28, 45)
133 (80) 131 (71) 31
(23, 39)
37
(28, 45)
  To avoid 78 (34) 94 (38) 9
(3, 15)
2
(0, 5)
20 (12) 34 (18) 0 6
(0, 14)
  Unsure 14 (6) 19 (8) 21
(0, 43)
5
(0, 15)
13 (8) 19 (10) 23
(0, 46)
5
(0, 15)
  All cycles 229 (100) 245 (100) 23
(17, 28)
21
(16, 26)
166 (100) 184 (100) 27
(20, 33)
28
(21, 34)
a

4 women in the control group and 3 women in the CrMS group had pregnancies in cycle zero, which are not included in this table.