Independent and interactive association of sleep duration and screen
time with anxiety of pregnant women during COVID-19 pandemic: a
multi-central cross-sectional study
Objective: To determine the association of sleep duration and screen
time with anxiety among pregnant women under COVID-19 pandemic scenario.
Design: Cross-sectional study. Population: A total of 1794 pregnant
women cover the whole pregnant period. Methods: We conducted one
large-scale, multicenter cross-sectional study which recruited 1794
pregnant women across China. The demographic factor, lifestyle, and
mental health of participants were submitted online in self-reported
manner by the pregnant women during 6 February to 8 May, 2020. We
further investigated the association of sleep duration and screen time
with the risk of anxiety by multivariable logistic regression analysis
and linear regression analysis after adjusting the potential
confounders. Moreover, stratification analysis was subsequently
conducted for controlling potential confounders. Main outcome measures:
the dependent and interactive effect of sleep duration and screen time
with anxiety among pregnant women. Results: Our data revealed that 35%
of pregnant women suffered from anxiety during the COVID-19 pandemic.
Sleep duration was dose-dependently associated with lower risk of
anxiety among pregnant women (OR 0.418: 95%CI 0.276-0.630), while
screen time exhibited conversed effect (OR 2.017: 95%CI 1.008-4.399).
Notably, sleep duration(>7h/day) together with screen
time(3-6h/day) diminished the risk of anxiety (OR 0.708: 95%CI
0.503-0.997). Conclusion: Taken together, sleep duration and screen time
were independently and jointly associated with anxiety. Therefore,
promoting more active lifestyle and maintaining higher sleep quality
could protect mental health of pregnant women, especially under public
health emergency. Funding: This work was funded by National Key R&D
Program of China (2018YFC1004300, 2018YFC1004304).