Table 2. Pregnancy among Women Exposed or Unexposed to Cervical Treatment orDiagnostic Procedures.

	Crude HR (95% CI)	Adjusted a HR (95% CI)
Cervical Treatment Procedure vs. Unexposed	1.35 (1.24–1.47)	1.42 (1.30–1.55)
Contraceptive Use (time-dependent)		0.28 (0.26–0.30)
Age at Index Date
<20 years		1.0 (ref)
20–29 years		2.81 (2.60–3.04)
30–39 years		1.03 (0.95–1.13)
40+ years		0.04 (0.03–0.05)
Infertility Diagnosis, Treatment, or Testing		0.85 (0.77–0.93)
Cervical Treatment Procedure vs. Diagnostic Procedure	1.35 (1.22–1.48)	1.03 (0.93–1.13)
Contraceptive Use (time-dependent)		0.24 (0.22–0.28)
Age at Index Date
<20 years		1.0 (ref)
20–29 years		0.88 (0.79–0.99)
30–39 years		0.31 (0.28–0.36)
40+ years		0.01 (0.01–0.01)

HR = hazard ratio;

CI = confidence interval

^a adjusted for all covariates listed