From: Early detection of mental illness for women suffering high-risk pregnancies: an explorative study on self-perceived burden during pregnancy and early postpartum depressive symptoms among Chinese women hospitalized with threatened preterm labour
Variables
Correlation coefficient (r)
p
Depressive symptoms (EPDS)
1
1.000
Self-perceived burden (SPBS)
 Total scores
0.50
<  0.001**
 Physical aspects
0.47
 Emotional aspects
0.51
 Economic aspects
−0.05
0.546