Table 2 Comparison of the reproductive outcomes of the CC + letrozole and CC-alone groups

Primary outcome

Ovulation, n (%)

 Intention to treat analysis^†

39 (78)

35 (70)

8.0

(-9.1 to 24.6)

1.11

(0.88 to 1.41)

0.494

 Per-protocol analysis^‡

37 (77)

33 (70)

6.9

(-10.7 to 24.0)

1.10

(0.86 to 1.40)

0.447

Secondary outcomes

Pregnancy, n(%)

 Conception

3 (6.3)

2 (4.3)

2.0

(-8.8 to 13.0)

1.47

(0.26 to 8.40)

1.000

 Clinical pregnancy

1

2

NA*

NA*

NA*

 Live birth

1

1

NA*

NA*

NA*

 Pregnancy loss

2

1

NA*

NA*

NA*

Fecundity among those who ovulated

 Conception

3/37

2/33

2.0

(-12.5 to 15.9)

1.34

(0.24 to 7.52)

1.000

 Clinical pregnancy

1/37

2/33

NA*

NA*

NA*

 Live birth

1//37

1/33

NA*

NA*

NA*