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Table 1 Summary and timing of measures

From: Early intervention to protect the mother-infant relationship following postnatal depression: study protocol for a randomised controlled trial

  Baseline Post-PND programme Post-HUGS/ Playtime 6-month follow-up
Maternal measures     
Socio-demographics: marital status, education, occupation, ethnicity, income, number of children, depression history, child health.    
Edinburgh Postnatal Depression Scale[60]: 10-items to screen for probable depression.    
Beck Depression and Anxiety Inventories[63]: 21 items measuring depression/anxiety symptoms.
Structured Clinical Interview for the DSM-IV-TR Axis I Disorders[62]: this diagnostic interview was developed to assess major Axis I disorders using nomenclature derived from the DSM-IV. Mood disorders, post-traumatic stress disorder, substance use disorders, and psychotic screening modules will be included.    
Programme evaluation: questions asking about participants’ satisfaction with treatment.    
Services accessed: questions asking about services participants have accessed since joining the study.  
Mother-infant measures     
Parenting Stress Index[64]: 101-items measuring dysfunctional parenting, 13 subscales including attachment and self-efficacy.
Parent-child Early Relational Assessment[65]: observational measure to assess the quality of the mother-child relationship. Videotaped sessions of unstructured play (10 minutes). Consists of mother, child and dyadic scales. Rated by a blinded trained observer. Used in over 200 studies.
Infant/Caregiver Behavioural Measure (Milgrom and Burn, unpublished data): videotaped sessions described above will also be scored by a blinded trained observer using this measure, which includes maternal, infant and interactional behaviours.
Postpartum Bonding Questionnaire[66]: the 12-item Impaired Bonding subscale will be used to detect mother-infant relationship problems.
Infant measures     
Short Temperament Scale for Infants/Toddlers[67, 68]: 30 items assessing temperament. Includes subscales reflecting difficult infant behaviours (irritability, cooperation/manageability). Normative data available for Australian children.
Ages & Stages Questionnaire[69]: assesses early developmental milestones in five domains (communication, gross motor and fine motor skills, problem-solving, and personal-social skills).
Ages & Stages Questionnaire Social-Emotional[70]: assesses infants’ social and emotional behaviour.
  1. DSM, Diagnostic and Statistical Manual of Mental Disorders; HUGS, Happiness Understanding Giving and Sharing; PND, postnatal depression.