Table 5

Table 5. Poisson Regression with robust variance of associated factors and infant birth and clinical pregnancy.
	Clinical pregnancy	Live birth
RR* (95%CI)	p	RR* (95%CI)	p
Estrogen use Continuous oral doses Increasing oral doses	1.55 (1.12-2.14) 1 (Ref.)	0.009	1.32 (0.94-1.87) 1 (Ref.)	0.0114

Table 5. Poisson Regression with robust variance of associated factors and infant birth and clinical pregnancy.

Clinical pregnancy

Live birth

RR* (95%CI)

Estrogen use

Continuous oral doses

Increasing oral doses

1.55 (1.12-2.14)

1 (Ref.)

0.009

1.32 (0.94-1.87)

1 (Ref.)

0.0114

RR: relative risk; 95% CI: 95% confidence interval; Ref: reference category; *Adjusted to age and attempt number.