Strengths & Limitations
The study was the first of its kind in India, conducted on a large sample to investigate the impact of two vaccines approved for use in India on the menstrual cycle pattern in reproductive-age women.
The major drawback of the study was, it failed to compare vaccinated with unvaccinated women as by the time it started the majority of females were either partially or fully vaccinated. In the future, we may plan to conduct a long-term follow-up of women reporting changes in their menstrual cycle after vaccination or COVID-19 infection to know for how long these irregularities lasted and to establish the cause-effect relationship with the vaccination.