Table 3 Adjusted prevalence ratios (aPR) of high-risk HPV infection by endometriosis.

Endometriosis

 No

Ref

Ref

Ref

Ref

 Yes

0.72 (0.45–1.15)

0.75 (0.47–1.20)

0.74 (0.46–1.17)

0.71 (0.44–1.14)

Age categories

 20–34

Ref

Ref

Ref

 35–54

0.78 (0.64–0.96)

0.83 (0.67–1.02)

0.82 (0.66–1.00)

Race/ethnicity

 Hispanic

0.89 (0.66–1.20)

0.89 (0.66–1.19)

1.04 (0.79–1.38)

 Non-Hispanic White

Ref

Ref

Ref

 Non-Hispanic Black

1.17 (0.98–1.41)

1.19 (1.00–1.42)

1.36 (1.15–1.61)

 Other races

1.01 (0.65–1.58)

0.98 (0.62–1.53)

1.07 (0.66–1.73)

Ratio of family income to poverty

 < 1.5

Ref

Ref

Ref

1.5 ≤  < 3.0

0.96 (0.78–1.18)

0.93 (0.77–1.13)

1.02 (0.85–1.22)

 ≥ 3.0

0.81 (0.63–1.04)

0.78 (0.62–0.99)

0.93 (0.74–1.18)

Marital status

 Married/living with partners

Ref

Ref

Ref

 Widowed/divorced/separated

1.41 (1.14–1.76)

1.41 (1.14–1.75)

1.35 (1.08–1.68)

 Never married

1.63 (1.28–2.08)

1.56 (1.24–1.95)

1.43 (1.15–1.78)

Number of vaginal/cesarean deliveries

 0

Ref

Ref

 1–3 times

0.85 (0.62–1.18)

0.85 (0.61–1.19)

 ≥ 4 times

0.59 (0.36–0.99)

0.58 (0.34–0.99)

Duration of oral contraceptive use

 < 5 years

Ref

Ref

 ≥ 5 years

0.84 (0.67–1.04)

0.85 (0.68–1.05)

High-risk alcohol intake

 No

Ref

 Yes

1.36 (0.94–1.95)

Smoking status

 Never smoker

Ref

 Ex-smoker

0.97 (0.71–1.32)

 Current smoker

1.62 (1.34–1.96)