| 1 | A | B | C | D |
| --- | --- | --- | --- | --- |
| 2 | adjusted odds ratios relating oral contraceptive use to selected characteristics, women aged 15 to 49, household population, canada, 2007 to 2011 |  |  |  |
| 3 | characteristic | adjusted odds ratio | 95% confidence interval |  |
| 4 |  |  | from | to |
| 5 | age group |  |  |  |
| 6 | 15 to 19 | 14.49 | 7.14 | 29.38 |
| 7 | 20 to 24 | 10.93 | 5.10 | 23.45 |
| 8 | 25 to 29 | 8.65 | 3.59 | 20.85 |
| 9 | 30 to 34 | 8.03 | 3.57 | 18.03 |
| 10 | 35 to 39 | 3.75 | 1.73 | 8.09 |
| 11 | 40 to 49 | 1.00 | 1.00 | 1.00 |
| 12 | marital status |  |  |  |
| 13 | married | 1.00 | 1.00 | 1.00 |
| 14 | common-law | 1.63 | 0.87 | 3.05 |
| 15 | previously married | 0.74 | 0.33 | 1.69 |
| 16 | single, never married | 1.35 | 0.68 | 2.70 |
| 17 | parity |  |  |  |
| 18 | nulliparous | 2.09 | 1.27 | 3.42 |
| 19 | parous | 1.00 | 1.00 | 1.00 |
| 20 | sexually active in past year |  |  |  |
| 21 | no | 1.00 | 1.00 | 1.00 |
| 22 | yes | 3.96 | 1.52 | 10.37 |
| 23 | immigrant |  |  |  |
| 24 | no | 2.66 | 1.21 | 5.84 |
| 25 | yes | 1.00 | 1.00 | 1.00 |
| 26 | household income |  |  |  |
| 27 | lower | 1.00 | 1.00 | 1.00 |
| 28 | higher | 1.11 | 0.66 | 1.89 |
| 29 | has regular doctor |  |  |  |
| 30 | no | 0.56 | 0.28 | 1.10 |
| 31 | yes | 1.00 | 1.00 | 1.00 |

Question: was the adjusted odds of oc use higher for women aged 15 to 19 or was that for those aged 40 to 49?
Answer: 15 to 19

Question: was the adjusted odds of oc use higher for women aged 20 to 24 or was that for those aged 40 to 49?
Answer: 20 to 24

Question: was the adjusted odds of oc use higher for women aged 25 to 29 or was that for those aged 40 to 49?
Answer: 25 to 29

Question: was the adjusted odds of oc use higher for women aged 30 to 34 or was that for those aged 40 to 49?
Answer: 30 to 34

Question: was the adjusted odds of oc use higher for women aged 35 to 39 or was that for those aged 40 to 49?
Answer: 35 to 39

Question: were the adjusted odds higher in women who were nulliparous or were that in parous ones?
Answer: nulliparous

Question: were the adjusted odds higher in women who were sexually active in the past year or were that in inactive ones?
Answer: sexually active in past year, yes

Question: were the adjusted odds higher in women who were canadian-born or were that in immigrant ones?
Answer: immigrant, no