Table 3. Results of the multivariate logistic regression analysis identifying the variables significantly associated with the different outcomes of interest.
| Variable | OR (95% CI) | p value |
|---|---|---|
| Model 1. Knowledge that a pregnant woman with a chronic health condition must discuss whether or not to take a medication with the physician | ||
| Log likelihood = -208.13, χ2 = 152.18 (18 df), p<0.0001 | ||
| Need of additional information about using medications in pregnancy | 2.59 (1.55–4.34) | <0.001 |
| Self-perceived health status | 1.33 (1.34–1.55) | <0.001 |
| At least one health problem in the last year | 4.88 (1.75–13.59) | 0.002 |
| Age (years) | ||
| ≤20 | 1* | |
| 31–35 | 2.92 (1.18–7.23) | 0.02 |
| 36–40 | 3.5 (1.27–9.69) | 0.016 |
| History of abortion | 0.57 (0.34–0.95) | 0.031 |
| Employment status | 1.79 (1.05–3.05) | 0.032 |
| Nationality | 1.88 (1.01–3.5) | 0.044 |
| Correct knowledge how to use medications according to the trimester of pregnancy | 1.95 (1.01–3.76) | 0.045 |
| Model 2. Knowledge of the potential risk of using non-prescribed medications and the need to receive a medical advice during pregnancy | ||
| Log likelihood = -193.6, χ2 = 69.8 (8 df), p<0.0001 | ||
| Employment status | 2.54 (1.42–4.55) | 0.002 |
| Correct knowledge of the possible damages to the women due to the use of medications in pregnancy | 2.44 (1.35–4.44) | 0.003 |
| Physicians as a source of information about using medications in pregnancy | 2.72 (1.37–5.39) | 0.004 |
| Correct knowledge how to use medications according to the trimester of pregnancy | 2.49 (1.2–5.19) | 0.015 |
| Physicians as a source of information on the risk for the unborn baby due to the use of medications in pregnancy | 1.82 (1.04–3.17) | 0.036 |
| Model 3. Had used at least one medication | ||
| Log likelihood = -257.1, χ2 = 164.28 (17 df), p<0.0001 | ||
| Gestational age (trimester) | ||
| Second | 1* | |
| Third | 2.36 (1.51–3.69) | <0.001 |
| High-risk pregnancy | 6.03 (2.77–13.1) | <0.001 |
| Correct knowledge that a pregnant woman with a chronic health condition must discuss whether or not to take a medication with the physician | 2.53 (1.49–4.3) | 0.001 |
| Age (years) | ||
| ≤20 | 1* | |
| 26–30 | 2.27 (1.26–4.1) | 0.006 |
| 31–35 | 2.75 (1.44–5.26) | 0.002 |
| At least one health problem in the last year | 2.81 (1.41–5.58) | 0.003 |
| Educational level | ||
| College degree or higher | 1* | |
| No formal education or elementary school | 3.53 (1.25–9.97) | 0.017 |
| Middle school | 2.53 (1.09–5.85) | 0.03 |
| High school | 2.99 (1.39–6.43) | 0.005 |
| Nationality | 2.25 (1.24–4.09) | 0.007 |
| Model 4. Had practiced at least one self-medication | ||
| Log likelihood = -287.43, χ2 = 115.02 (13 df), p<0.0001 | ||
| Correct knowledge about the potential risk of using non-prescribed medications in pregnancy | 0.34 (0.19–0.61) | <0.001 |
| At least one medication with prescription in the current pregnancy | 2.45 (1.62–3.7) | <0.001 |
| Parity | 2.01 (1.29–3.14) | 0.002 |
| Nationality | 2.19 (1.25–3.83) | 0.006 |
| Correct knowledge that a pregnant woman with a chronic health condition must discuss whether or not to take a medication with the physician | 2.05 (1.19–3.52) | 0.009 |
| Age (years) | ||
| ≤20 | 1* | |
| >40 | 14.68 (1.42–151.68) | 0.024 |
| History of abortion | 0.63 (0.41–0.96) | 0.032 |
| Employment status | 1.55 (1.02–2.37) | 0.04 |
| Need of additional information about using medications in pregnancy | 1.52 (1.01–2.31) | 0.049 |
* Reference category