2.4. Data Analysis
high-risk-for-preterm-PE, depression
REGRESSION, RECRUITMENT
To examine the impact of first-trimester PE screening and prevention throughout pregnancy, we first examined the background differences across relevant demographic and obstetrics factors between the low- and high-risk-for-PE women (at time 2) using Student’s Given the identified differences between the low- and high-risk-for-preterm-PE groups regarding health behaviour changes, two-way analyses were carried out to examine the interaction at time 3 between risk status (high vs. low PE risk) and depression on lifestyle changes. Continuous variables were standardized before being inserted and multiplied in the regression model and the following variables were inserted as covariates in order to statistically control for their confounding effects: maternal education, employment, relationship status, whether it was their first child, and previous emotional difficulties.Finally, to ensure results were not inflated by the two-step recruitment of participants in the high-risk group, we performed the same analytic strategy as described above on the subsample of high-risk and low-risk participants recruited and longitudinally assessed across All analyses were performed using R [