Table 2.
Odds Ratios of the Association Between Cervical Cancer Screening During the 7 Years Prior to Index Date and Cervical Cancer Death Among US Women Aged 55–79 Years Using Multivariate Logistic Regression, 1980–2010
| Screening Status |
Cases (n = 39) |
Controls (n = 80) |
Univariate Modela |
Adjusted Modelb |
||||
|---|---|---|---|---|---|---|---|---|
| No. | % | No. | % | OR | 95% CI | OR | 95% CI | |
| Unscreened | 19 | 49 | 15 | 19 | 1.00 | Referent | 1.00 | Referent |
| Screened | 20 | 51 | 65 | 81 | 0.24 | 0.10, 0.56 | 0.26 | 0.10, 0.63 |
Abbreviations: CI, confidence interval; OR, odds ratio.
a Adjusted for matching variables only (controls matched to cases on health plan (Group Health (Seattle, Washington) or Kaiser Permanente Northwest (Portland, Oregon)), duration of enrollment prior to diagnosis (continuous, in months), and age (continuous)).
b Adjusted for matching variables, plus those that were significant in the full model (P < 0.10): smoking status (never smoker, nonsmoker, former smoker, current smoker), marital status (never married, married, divorced, widowed, separated, unknown), race/ethnicity (white, Hispanic, Asian, unknown).