Table 4 Variables/demographics analysed in studies and whether they were recorded to be significantly linked to PND (**) or attachment style (*)

Maternal age

X

X

X*

X

X

X

X

X

X

X

**X

X

X

X

**X

X

X

X

X

Employment status

X

X

X*

X

X

X

X

X

**X

X

X

Housewife or primary carer

X

X

X

X

X

**X

X

X

Income

X

X

**X

**X

X

Social class

X*

X

X

X

Education level

X

X

X

X

X

X

X

X

**X

**X

X

X

X

X

X

National language proficiency

**X

Marital status

X

X*

X

X

X

X

X

X

X

X

X

X

Relationship quality or satisfaction

X

**X

X*

X

X*

**X*

Spousal behaviours or support

**X*

X

X

**X

**X*

X

Spouse attachment style

X*

X*

X*

Spouse depression

**X

Husband happiness re: pregnancy

**X

Extended family

X*

X

**X

X

Social/family support

X*

X*

X

**X

**X*

Historic parental separation

**X*

X

Early childhood experiences of parents

X

**X*

**X

**X

**X*

X

Planned pregnancy

X

X

**X

X

X

X

Pregnancy experience

X

**X*

**X

X

Parity

X

X

X

X

**X

X

X

X

X

X

X

X

Gestational Diabetes

**X

Age of infant

**X

X

X

**X

X

Breastfeeding duration

**X

X

X*

Infant health problems

**X

X

Infant colic

**X*

Perceived infant temperament or difficultness

**X

**X

**X*

Mother-infant interaction

**X*

Infant-mother attachment

**X*

X

Prenatal depression

**X

X*

X

X

X

**X

X

**X

X*

History of depression

**X

X

**X

X

Life adversity/stress

X

**X*

X

Psychological wellbeing

X

**X*

Maternal Anxiety

X*

X

X*

X

**X

**X

**X*

**X*

X

Maternal Neuroticism

X*

**X

Cognitive defence/coping style

**X

**X