Statistical analysis
We calculated the exact numbers and proportions for all variables in
Wuhan, Chongqing, and the total for the two cities. Cronbach’s alpha was
used to assess the reliability of the anxiety scale. To compare the
distribution of background, attitude, anxiety, and obstetrical choices
between the two cities, the Chi-squared test, Kruskal-Wallis test and
Student’s t test were used in accordance with the type of data.
All factors related to pregnant women’s background and their attitude
towards COVID-19 were selected as independent variables. We used
stepwise logistic regression models to estimate the effect of these
factors on the anxiety status.
The Statistics Analysis Software version 9.4 (SAS Institute Inc, Cary,
NC, USA) was used and a significance level of p-value < 0.05
was applied. Figures we presented were plotted with PRISM version 8.0
for windows (GraphPad Software Inc, San Diego, CA).