Table 4.
Odds ratios (OR) and 95% confidence intervals (CI) for attendance to cervical screening after receipt of a reminder, versus opportunistic attendance on own initiative
| N | Reminded attendance (%) |
Age-adjusted OR (95% CI) for reminded attendance |
Multivariatea OR (95% CI) for reminded attendance |
|
|---|---|---|---|---|
| SOCIODEMOGRAPHICS | ||||
| Age | ||||
| 25-29 | 2318 | 39.34 | 1 | 1 |
| 30-34 | 2631 | 46.75 | 1.35 (1.21, 1.52) | 1.24 (1.09, 1.41) |
| 35-39 | 2670 | 52.25 | 1.69 (1.51, 1.89) | 1.58 (1.39, 1.80) |
| 40+ | 2825 | 54.23 | 1.83 (1.63, 2.04) | 1.66 (1.45, 1.90) |
| P-value | P < 0.0001 | P < 0.0001 | ||
| Education (years) | ||||
| < 9 | 205 | 49.76 | 1.06 (0.80, 1.40) | |
| 9-12 | 2735 | 50.16 | 1.02 (0.92, 1.12) | |
| 13-16 | 4559 | 48.41 | 1 | |
| >16 | 2885 | 47.25 | 1.02 (0.88, 1.06) | |
| P-value | P = 0.77 | |||
| Marital status | ||||
| Married/cohabiting | 8164 | 49.47 | 1 | 1 |
| Divorced/widow | 670 | 47.31 | 0.82 (0.70, 0.96) | 0.88 (0.73, 1.06) |
| Single | 1525 | 44.59 | 0.90 (0.81, 1.01) | 0.95 (0.83, 1.08) |
| P-value | P = 0.01 | P = 0.33 | ||
| HEALTH AND HEALTH RISKS | ||||
| Self-rated health | ||||
| Poor | 690 | 46.23 | 0.86 (0.73, 1.00) | |
| Good | 3123 | 47.26 | 0.93 (0.85, 1.01) | |
| Very good | 4854 | 49.01 | 1 | |
| Excellent | 1551 | 49.39 | 1.00 (0.89, 1.12) | |
| P-value | P = 0.12 | |||
| Smoking | ||||
| Never | 4717 | 50.03 | 1 | 1 |
| Former | 2420 | 47.07 | 0.86 (0.78, 0.95) | 0.97 (0.87, 1.09) |
| Current | 3274 | 47.37 | 0.88 (0.81, 0.97) | 1.03 (0.92, 1.15) |
| P-value | P = 0.003 | P = 0.66 | ||
| Beer drinking | ||||
| Never | 2311 | 49.94 | 1.16 (1.04, 1.29) | 1.05 (0.93, 1.18) |
| <once per month | 2902 | 49.93 | 1.13 (1.02, 1.25) | 1.05 (0.94, 1.17) |
| 1-3 times per month | 3316 | 46.47 | 1 | 1 |
| >=once per week | 817 | 45.53 | 0.96 (0.82, 1.12) | 1.03 (0.87, 1.22) |
| P-value | P = 0.008 | P = 0.84 | ||
| Wine drinking | ||||
| Never | 798 | 50.88 | 1.19 (1.02, 1.38) | 1.17 (0.98, 1.39) |
| <once per month | 2478 | 50.12 | 1.13 (1.02, 1.24) | 1.08 (0.96, 1.21) |
| 1-3 times per month | 4358 | 47.22 | 1 | 1 |
| >=once per week | 1972 | 47.36 | 0.92 (0.83, 1.03) | 0.96 (0.85, 1.08) |
| P-value | P = 0.002 | P = 0.13 | ||
| Liquor drinking | ||||
| Never | 3155 | 49.57 | 1.01 (0.92, 1.11) | |
| <once per month | 4136 | 48.77 | 1 | |
| >=once per month | 1590 | 46.04 | 0.92 (0.82, 1.03) | |
| P-value | P = 0.26 | |||
| SEXUAL HISTORY | ||||
| Number of lifetime coital partners | ||||
| 0-3b | 3354 | 54.03 | 1 | 1 |
| 4-9 | 3726 | 47.07 | 0.76 (0.70, 0.84) | 0.88 (0.79, 0.99) |
| 10 + | 3046 | 44.42 | 0.69 (0.62, 0.76) | 0.87 (0.76, 0.99) |
| P-value | P < 0.0001 | P = 0.05 | ||
| Number of new coital partners during last six months | ||||
| 0 | 8410 | 49.27 | 1 | |
| 1 | 1454 | 46.77 | 0.94 (0.84, 1.05) | |
| 2+ | 498 | 42.77 | 0.84 (0.70, 1.01) | |
| P-value | P = 0.11 | |||
| Age at first coitus | ||||
| <17 | 4426 | 46.07 | 1 | 1 |
| 17-18 | 3498 | 48.66 | 1.10 (1.01 1.20) | 1.07 (0.97, 1.19) |
| 19 + | 2294 | 52.14 | 1.26 (1.14, 1.40) | 1.07 (0.94, 1.22) |
| P-value | P < 0.0001 | P = 0.36 | ||
| Ever had any STIc | ||||
| No | 6840 | 51.40 | 1 | 1 |
| Yes | 3295 | 42.12 | 0.68 (0.63, 0.74) | 0.76 (0.68, 0.83) |
| P-value | P < 0.0001 | P < 0.0001 | ||
| PREGNANCY AND CONTRACEPTIVES | ||||
| Ever pregnant | ||||
| No | 1758 | 45.68 | 1.08 (0.97, 1.21) | |
| Yes | 8659 | 49.16 | 1 | |
| P-value | P = 0.17 | |||
| Number of births | ||||
| 0 | 2458 | 45.04 | 1 | |
| 1 | 2051 | 46.03 | 0.92 (0.82, 1.04) | |
| 2 | 3630 | 49.89 | 0.96 (0.86, 1.08) | |
| 3+ | 2156 | 52.97 | 1.03 (0.90, 1.17) | |
| P-value | P = 0.35 | |||
| Ever used hormonal contraceptives | ||||
| No | 891 | 57.35 | 1.39 (1.21, 1.60) | 1.21 (1.01, 1.46) |
| Yes | 9483 | 47.63 | 1 | 1 |
| P-value | P < 0.0001 | P = 0.03 | ||
| Used hormonal contraceptive during last month | ||||
| No | 6613 | 50.20 | 1 | 1 |
| Yes | 3713 | 45.33 | 0.87 (0.80, 0.95) | 0.88 (0.80, 0.96) |
| P-value | P = 0.001 | P = 0.006 | ||
| Ever used condoms | ||||
| No | 1472 | 54.28 | 1.23 (1.10, 1.38) | 1.07 (0.94, 1.23) |
| Yes | 8889 | 47.54 | 1 | 1 |
| P-value | P = 0.0003 | P = 0.31 | ||
| AWARENESS | ||||
| "Did you know that a gynecological smear may detect changes that could lead to cervical cancer?" | ||||
| No | 938 | 40.94 | 0.78 (0.68, 0.90) | 0.78 (0.65, 0.94) |
| Yes | 9455 | 49.25 | 1 | 1 |
| P-value | P = 0.0006 | P = 0.007 | ||
| "Did you know that the recommended screening interval is every third year?" | ||||
| No | 880 | 33.18 | 0.54 (0.47, 0.63) | 0.49 (0.41, 0.59) |
| Yes | 9531 | 49.96 | 1 | 1 |
| P-value | P < 0.0001 | P < 0.0001 | ||
| "Do you believe a gynecological smear every third year is necessary for you?" | ||||
| No | 7896 | 49.23 | 1.14 (1.03, 1.26) | 1.06 (0.93, 1.20) |
| Yes | 1960 | 45.66 | 1 | 1 |
| Don't know | 547 | 49.73 | 1.25 (1.04, 1.52) | 1.13 (0.89, 1.43) |
| P-value | P = 0.02 | P = 0.54 | ||
| "Have you ever heard of HPV?" | ||||
| No | 6585 | 49.70 | 1.14 (1.05, 1.24) | 1.19 (1.08, 1.30) |
| Yes | 3779 | 46.44 | 1 | 1 |
| P-value | P = 0.001 | P = 0.0003 | ||
a The multivariate model only included variables that were significant in the age-adjusted models
b Included 154 women reporting zero lifetime coital partners
c Chlamydia, gonorrhea, trichomonas vaginalis, herpes or genital warts