Cumulative effects of pre-pandemic vulnerabilities and pandemic-related hardship on psychological distress among pregnant individuals.

Objective: Our primary objective was to determine whether pre-existing vulnerabilities and resilience factors combined with objective hardship resulted in cumulative (i.e., additive) effects on psychological distress in pregnant individuals during the COVID-19 pandemic. A secondary objective was to determine whether any of the effects of pandemic-related hardship were compounded (i.e., multiplicative) by pre-existing vulnerabilities.

Method: Data are from a prospective pregnancy cohort study, the Pregnancy During the COVID-19 Pandemic study (PdP). This cross-sectional report is based upon the initial survey collected at recruitment between April 5, 2020 and April 30, 2021. Logistic regressions were used to evaluate our objectives.

Results: Pandemic-related hardship substantially increased the odds of scoring above the clinical cut-off on measures of anxiety and depression symptoms. Pre-existing vulnerabilities had cumulative (i.e., additive) effects on the odds of scoring above the clinical cut-off on measures of anxiety and depression symptoms. There was no evidence of compounding (i.e., multiplicative) effects. Social support had a protective effect on anxiety and depression symptoms, but government financial aid did not.

Conclusion: Pre-pandemic vulnerability and pandemic-related hardship had cumulative effects on psychological distress during the COVID-19 pandemic. Adequate and equitable responses to pandemics and disasters may require more intensive supports for those with multiple vulnerabilities.