Table 6. Confounding analysis.
Covariates | Univariate analysis |
Multivariate analysis |
||||
P | OR | 95%CI | P | OR | 95%CI | |
Onset of meningioma | 0.151 | 0.988 | 0.972-1.004 | 0.657 | 0.992 | 0.959-1.027 |
Family history | 0.999 | - | - | 0.999 | - | - |
Onset of contraception use | 0.668 | 0.967 | 0.828-1.129 | 0.81 | 0.975 | 0.794-1.197 |
Type of hormonal contraception | 0.999 | - | - | 0.999 | - | - |
Duration of hormonal contraception | 0.607 | 0.997 | 0.987-1.007 | 0.573 | 0.996 | 0.98-1.011 |
Parity | 0.095 | 0.522 | 0.244-1.12 | 0.495 | 0.692 | 0.241-1.988 |
Age of menarche | 0.284 | 0.759 | 0.457-1.258 | 0.419 | 0.762 | 0.394-1.473 |
Menstrual cycle | 0.497 | 1.585 | 0.419-5.992 | 0.999 | - | - |