Table 2.
Results of the Generalized Estimating Equations (GEE) analyses
| Pain intensity Unadjusted β coefficient (95% CI) | P- value | Pain intensity Adjusteda β coefficient (95% CI) | P- value | |
|---|---|---|---|---|
| Migraine status | ||||
| nMM | Reference | Reference | ||
| MM | 0.37 (0.04–0.71) | 0.027 | 0.45 (0.08–0.82) | 0.017 |
| Time period | ||||
| Pregnancy week 17 | Reference | Reference | ||
| Pregnancy week 32 | −2.80 (−3.07- -2.53) | < 0.001 | −2.61 (−2.91- -2.31) | < 0.001 |
| 8 week after delivery | −1.77 (− 2.01- -1.53) | < 0.001 | −1.54 (−1.83- -1.26) | < 0.001 |
| Menstrual pain | 0.15 (0.09–0.20) | < 0.001 | 0.16 (0.10–0.23) | < 0.001 |
| Menstrual cycle | ||||
| Normal | Reference | Reference | ||
| Irregular | 0.75 (0.11–1.40) | 0.022 | 0.67 (0.05–1.29) | 0.035 |
| Analgesics use | ||||
| No | Reference | Reference | ||
| Yes | 1.26 (0.98–1.54) | < 0.001 | 0.48 (0.19–0.77) | 0.001 |
MM Menstrual Migraine, nMM Non-Menstrual Migraine: aAdjusted for maternal age, parity, hormonal contraception, education; P-value< 0.05 were considered as statistically significant