Table 2.

Study measures

		Measures	Rationale	Collection Schedule								Instrument
					Postnatal Month
				A	1	6	12	18	24	36	48
Primary Outcomes		Breastfeeding	Important for health/development, poor in Aboriginal children [33].		●	●	●					Parental questionnaire (CHS items 37,39) collated at 12 months [34].
		Body mass index	Childhood obesity is increasing. Home visiting interventions have had impact, although not sustained over time [35].						●		●	Child weight and height; BMI = kg/m2.
		Child development	Studies reporting significantly lower levels of performance for Indigenous children compared to their non-Indigenous counterparts on cognitive and language tasks at school entry [36, 37].					●			●	Griffiths child developmental assessment [14].
		Child vocabulary development									●	Peabody Picture Vocabulary Test – 4th Edition [38].
Secondary Outcomes	Child	Child birthweight	Low birth weight more prevalent in Aboriginal children [33].	●								Birth weight recorded in perinatal statistics.
		Child health	Child health is associated with health in later life [39].		●	●	●	●	●	●	●	General health (CHS item 97) [34]; Paediatric assessment (18 months).
		Child dental health	Dental disease is an important cause of potentially preventable hospitalisations particularly for young Aboriginal children age 0–4 [40].								●	Dental assessment (dmft: decayed, missing and filled primary teeth); Significant Caries Index (SiC).
		Illnesses and injury	Aboriginal children have increased hospital admissions for respiratory illness, ear disease, gastroenteritis [41, 42].		●	●	●	●	●	●	●	Parental questionnaire; Paediatric assessment (18 months); Hospital data collections. Collated at 24 and 48 months.
		Age at first solids	Disadvantaged mothers more likely to introduce solids too early [43].			●	●					Parental questionnaire (CHS items 48–49), collated at 12 months) [34].
		Age appropriate immunisation	Contact with health professionals is influential in immunisation [44].			●	●	●			●	Parental questionnaire validated by Child Personal Health Record (Blue Book) [45].
	Mother	Maternal enablement	Enabling mother is a key principle of SNHV [10, 46, 47].		●							Modified Patient Enablement Instrument (Groups A and B only) [48].
		Parental child developmental enablement	Parental enablement of their child’s development is a key purpose of the intervention.			●	●	●	●			Modified Patient Enablement Instrument (Groups A and B only) [48].
		Knowledge of SIDS risk factors	Disadvantaged families less likely to act to reduce risk of SIDS [49].	●	●							Parental questionnaire [50].
		Maternal health	Associated with child health.	●	●							12-Item Short Form Health Survey (SF-12) [51].
		Maternal smoking	Risk factor for adverse perinatal outcomes [33].	●	●	●	●	●	●	●	●	Fagerstrom test for nicotine dependence [52].
	Family	Maternal social support	Positively influences families, parents, children [53].	●	●	●	●	●	●	●	●	Parental questionnaire (CHS items 191–196) [34].
		Family functioning	Affects health and wellbeing of children [53].	●	●	●	●	●	●	●	●	McMaster Family Assessment Device [54].
	Home	Home environment	Stimulating environment associated with infant development [55].				●		●	●		HOME Inventory [56].
		Household smoking	Increases risk of child respiratory problems [57].	●	●	●	●	●	●	●	●	Parental questionnaire (CHS items 291–294) [34].
	Service use	Use of and satisfaction with services	Parenting programs are effective in improving child behaviour [58].	●	●	●	●	●	●	●	●	Parental questionnaire (CHS items 15, 18, 178–189, 285, 290) [34].
		Mother satisfaction with home visiting service	Mothers are more likely to make use of services that are accessible and acceptable [59].		●	●	●	●	●			Parental questionnaire (Modified PSQ-18 Groups A and B only) [50]; Program retention.