Table 2 Univariate cox proportional hazards regression analysis for incident HR-HPV among Women in the Costa Rican Vaccine Trial
Woman characteristics | Total | Positive for one or more new HR-HPV types | ||||
|---|---|---|---|---|---|---|
n | Col % | n | % | HR (95% CI) | ||
Age at Enrollment (years) | 18-20 | 1,729 | 46.4 | 864 | 50.0 | 1.1 (1.0 – 1.2) |
21-25 | 2,002 | 53.6 | 947 | 47.3 | Ref | |
Marital Status | Divorced/Widowed | 98 | 2.6 | 70 | 71.4 | 2.5 (1.9 – 3.1) |
Single | 2,082 | 56.0 | 1,084 | 52.1 | 1.4 (1.3 – 1.5) | |
Married or living as | 1,544 | 41.4 | 654 | 42.4 | Ref | |
Measures of SES | All 5 | 3,012 | 80.7 | 1,517 | 50.4 | 1.3 (1.2 – 1.5) |
<5 | 719 | 19.3 | 294 | 40.9 | Ref | |
Virgin at Enrollment | No | 2,918 | 78.2 | 1,543 | 52.9 | 2.0 (1.7 – 2.2) |
Yes | 813 | 21.8 | 268 | 33.0 | Ref | |
Years Sexually Active | <1-2 | 674 | 23.1 | 393 | 58.3 | 1.4 (1.2 – 1.7) |
3-4 | 812 | 27.9 | 430 | 53.0 | 1.2 (1.1 – 1.5) | |
5-7 | 890 | 30.6 | 461 | 51.8 | 1.1 (1.0 – 1.3) | |
>7 | 536 | 18.4 | 256 | 47.8 | Ref | |
Monogamous Relationship | No | 2,489 | 66.7 | 1,253 | 50.3 | 1.2 (1.1 -1.4) |
Yes | 1,242 | 33.3 | 558 | 44.9 | Ref | |
Number of Sex Partners | 3+ | 902 | 31.2 | 560 | 62.1 | 1.7 (1.5 – 1.9) |
2 | 749 | 25.9 | 408 | 54.5 | 1.4 (1.2 – 1.6) | |
1 | 1,242 | 42.9 | 558 | 44.9 | Ref | |
Duration Sexual Relationship with Partner (days) | 1-330 | 1,051 | 36.3 | 608 | 57.9 | 1.5 (1.3 – 1.7) |
331-1200 | 1,022 | 35.3 | 546 | 53.4 | 1.3 (1.2 – 1.5) | |
1201-4380 | 824 | 28.4 | 376 | 45.6 | Ref | |
Lifetime Oral Contraceptive Use | No | 562 | 20.0 | 360 | 64.1 | 1.5 (1.3 – 1.7) |
Yes | 2,255 | 80.0 | 1,124 | 49.8 | Ref | |
Lifetime Injectable Contraceptive Use | No | 1,685 | 59.8 | 911 | 54.1 | 1.2 (1.0 – 1.3) |
Yes | 1,133 | 40.2 | 571 | 50.4 | Ref | |
Lifetime Condom Use | Yes | 1,729 | 61.3 | 933 | 54.0 | 1.2 (1.1 – 1.3) |
No | 1,092 | 38.7 | 550 | 50.4 | Ref | |
Use of Barrier Methods During Sex | Condom/Diaphragm | 788 | 27.1 | 465 | 59.0 | 1.3 (1.2 – 1.4) |
Neither | 2,123 | 72.9 | 1,074 | 50.6 | Ref | |
Smoked Cigarettes in Past 6 Months | Yes | 499 | 13.4 | 317 | 63.5 | 1.7 (1.5 – 1.9) |
No | 3,225 | 86.6 | 1,491 | 46.2 | Ref | |
HPV Positive at Enrollment | Yes | 1,459 | 39.1 | 902 | 61.8 | 2.0 (1.8 – 2.2) |
No | 2,272 | 60.9 | 909 | 40.0 | Ref | |
Number of Enrollment HPV Infections | 2 or more types | 549 | 14.7 | 361 | 65.8 | 2.3 (2.0 – 2.6) |
1 type | 910 | 24.4 | 541 | 59.5 | 1.9 (1.7 – 2.1) | |
0 types | 2,272 | 60.9 | 909 | 40.0 | Ref | |