Table 3.
Poisson regression analysis of patients’ knowledge regarding complementary medicine and associated factors
| Variables | Univariable analysis | Multivariable analysis | ||
|---|---|---|---|---|
| IRR (95% CI) | p-value | IRR (95% CI) | p-value | |
| Sex | ||||
| Female | 1.61 (1.45–1.79) | <0.001 | 1.57 (1.40–1.75) | <0.001 |
| Male | 1 ref | - | 1 ref | - |
| Age | ||||
| 21–48 | ref | - | ref | - |
| 49–59 | 1.23 (1.09–1.39) | 0.001 | 1.19 (1.05–1.35) | 0.005 |
| 60–74 | 0.65 (0.56–0.76) | <0.001 | 0.67 (0.58–0.78) | <0.001 |
| 75–88 | 0.72 (0.62–0.85) | <0.001 | 0.64 (0.55–0.75) | <0.001 |
| Education | ||||
| Basic/apprenticeship | ref | - | - | - |
| Professional diploma/high school/college | 1.06 (0.94–1.20) | 0.30 | - | - |
| University | 1.03 (0.90–1.18) | 0.65 | - | - |
| Marital status | ||||
| Single | ref | - | - | - |
| Married/civil partnership | 0.97 (0.84–1.13) | 0.76 | - | - |
| Divorced/separated | 1.15 (0.98–1.36) | 0.07 | - | - |
| Widower | 0.95 (0.74–1.21) | 0.68 | - | - |
| Nationality | ||||
| Other | ref | - | ref | - |
| Swiss | 1.37 (1.21–1.55) | <0.001 | 1.31 (1.15–1.50) | <0.001 |
| Complementary medicine health insurance | ||||
| No | ref | - | ref. | - |
| Yes | 1.19 (1.07–1.32) | 0.001 | 1.12 (1.00–1.25) | 0.03 |
Univariable Poisson regression model and the strength of the association were measured by the IRR (Incidence Rate Ratio) with 95% confidence intervals and their associated p-values