Association between Covishield vaccine and menstrual disturbance. Findings from a cross-sectional study among participants of Zero TB cohort in India.

Background: The association between covid-19 vaccine and menstrual disturbance is unclear.

Methods: An in-person cross-sectional survey among female members ≥ 18 years enrolled in an ongoing Zero TB prospective cohort in Northern India who had received one or two doses of covid-19 vaccine was conducted to study the characteristics and association of menstrual disturbance within six months of receiving Covishield.

Results: Between June 29 and September 5, 2021, 339 females ≥ 18 years of age were administered the survey.