Table 1.
Menstrual Symptoms Post-Vaccination and During COVID-19 Pandemic n (%)
| Post-Vaccination | During COVID-19 Pandemic | p value | |||
|---|---|---|---|---|---|
| First Dose Only | Second Dose Only | Both Doses | |||
| Irregular menstruation | 319 (14.1) | 212 (9.3) | 149 (6.6) | 278 (12.3) | <0.001 |
| Menstrual cramps | 214 (9.4) | 151 (6.7) | 98 (4.3) | 444 (19.6) | <0.001 |
| Increased period frequency | 197 (8.7) | 146 (6.4) | 103 (4.5) | 172 (7.6) | <0.001 |
| Menorrhagia | 201 (8.9) | 145 (5.4) | 78 (3.4) | 170 (7.5) | <0.001 |
| Increase duration of the menstruation | 193 (8.5) | 133 (5.9) | 70 (3.1) | 158 (6.8) | <0.001 |
| Menstruation has stopped | 78 (3.4) | 41 (1.8) | 32 (1.4) | 39 (1.7) | <0.001 |
| Worsening of premenstrual symptoms | 38 (1.7) | 30 (1.3) | 21 (0.9) | 115 (5.1) | <0.001 |
| Intermenstrual bleeding | 26 (1.1) | 9 (0.4) | 13 (0.6) | 62 (2.7) | <0.001 |
Notes: p value was calculated using a chi-squared test and indicates the associations between the menstrual symptoms post-vaccination in total (after the first dose only, second dose only, and after both doses) and menstrual symptoms during the COVID-19 pandemic.