Table 3. Prevalence ratios and 95% confidence intervals for the presence of at least one contraindication among users of oral contraceptive, according to sociodemographic characteristics. VIGITEL, Brazil, 2008.
| Sociodemographic characteristics | Contraindication | ||
|---|---|---|---|
|
| |||
| Adjusted PR | 95%CI | p* | |
| Education level (years) | |||
| 12 and more | 1.0 | - | - |
| 9 to 11 | 1.7 | 1.1-2.5 | 0.014 |
| 0 to 8 | 2.5 | 1.6-3.9 | < 0.000 |
| Age (years) | |||
| 18 to 24 | 1.0 | - | - |
| 25 to 34 | 1.1 | 0.6–1.9 | 0.727 |
| 35 to 44 | 4.0 | 2.3–6.8 | < 0.000 |
| 45 to 49 | 5.6 | 2.9–10.7 | < 0.000 |
| Marital status | |||
| Single | 1.0 | - | - |
| Married | 1.0 | 0.7-1.4 | 0.939 |
| Widow | 0.6 | 0.2-1.8 | 0.354 |
| Separated/Divorced | 1.5 | 0.8-2.8 | 0.160 |
| Has health plan or insurance | |||
| Yes | 1.0 | - | - |
| No | 0.9 | 0.7–1.2 | 0.522 |
| Skin color | |||
| White | 1.0 | – | - |
| Black | 0.9 | 0.5–1.7 | 0.754 |
| Brown | 1.1 | 0.8–1.6 | 0.450 |
| Other | 2.4 | 0.7–8.6 | 0.162 |
| Region | |||
| North | 1.0 | - | - |
| Northeast | 0.8 | 0.5–1.2 | 0.522 |
| Midwest | 0.8 | 0.6–1.2 | 0.316 |
| Southeast | 0.8 | 0.6–1.3 | 0.444 |
| South | 0.8 | 0.6–1.2 | 0.353 |
PR: Prevalence Ratio
* Wald’s Chi-squared.