Table 3.
Sensitivity Analyses of Odds Ratios of the Association Between Cervical Cancer Screening During the 5–6.5 Years Prior to Index Date and Cervical Cancer Death Among US Women Aged 55–79 Years Using Multivariate Logistic Regression, 1980–2010a
| No. of Years Prior to Index Date That DPP Starts by Screening Status | Cases (n = 39) |
Controls (n = 80) |
Adjusted Modelb |
|||
|---|---|---|---|---|---|---|
| No. | % | No. | % | OR | 95% CI | |
| 6.5 | ||||||
| Unscreened | 20 | 51 | 18 | 22 | 1.00 | Referent |
| Screened | 19 | 49 | 62 | 78 | 0.30 | 0.12, 0.72 |
| 6 | ||||||
| Unscreened | 23 | 59 | 19 | 24 | 1.00 | Referent |
| Screened | 16 | 41 | 61 | 76 | 0.24 | 0.10, 0.57 |
| 5.5 | ||||||
| Unscreened | 25 | 64 | 20 | 25 | 1.00 | Referent |
| Screened | 14 | 36 | 60 | 75 | 0.20 | 0.08, 0.50 |
| 5 | ||||||
| Unscreened | 25 | 64 | 21 | 26 | 1.00 | Referent |
| Screened | 14 | 36 | 59 | 74 | 0.22 | 0.09, 0.53 |
Abbreviations: CI, confidence interval; DPP, detectable preclinical phase; OR, odds ratio.
a The interval during which screening was considered was varied in 6-month intervals, from 6.5 years prior to index date to 5 years prior to index date.
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).