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TABLE 2

Mortality and Injury Outcomes Among Children Born in 2011 in New Zealand and at Very High Risk (Top 10%) of Maltreatment

OutcomesIncidence No. (Rate per 1000 Children)Relative Risk Ratio,a Coefficient (95% CI)Proportion of Top 10% Children With the Outcome Among All Children Affectedb (%)
Mortality    
 Postneonatal infant mortalityc 36 (6.0) 4.8 (3.2 to 7.2) 35.3 
 Postneonatal inflicted injury deathsc 9 (1.5) 9.0 (3.9 to 20.7) 42.9 
 Postneonatal unintentional injury deathsc 12 (2.0) 9.9 (4.2 to 23.3) 57.1 
 Postneonatal SUIDd 18 (3.0) 8.5 (4.4 to 16.5) 50.0 
 Infant mortalitye 60 (10.0) 2.7 (2.0 to 3.5) 22.2 
 Inflicted injury deathse 12 (2.0) 7.6 (3.4 to 17.0) 50.0 
 Unintentional injury deathse 12 (2.0) 8.2 (3.6 to 18.7) 50.0 
 SUIDf 18 (3.0) 6.9 (3.7 to 13.1) 46.2 
Hospitalizations    
For any injury, by age 3 489 (81.4) 2.0 (1.8 to 2.2) 18.1 
 For maltreatment-related injury, by age 2 30 (5.0) 9.6 (5.8 to 15.8) 50.0 
 For intracranial injury, by age 1 Suppressedg Suppressedg Suppressedg 
 For fracture of long bones injury, by age 2 27 (4.5) 2.6 (1.7 to 4.0) 23.1 
 Ambulatory sensitive hospitalizations, by age 3 921 (153.3) 1.6 (1.5 to 1.7) 15.4 
Sample size — — 6009 
OutcomesIncidence No. (Rate per 1000 Children)Relative Risk Ratio,a Coefficient (95% CI)Proportion of Top 10% Children With the Outcome Among All Children Affectedb (%)
Mortality    
 Postneonatal infant mortalityc 36 (6.0) 4.8 (3.2 to 7.2) 35.3 
 Postneonatal inflicted injury deathsc 9 (1.5) 9.0 (3.9 to 20.7) 42.9 
 Postneonatal unintentional injury deathsc 12 (2.0) 9.9 (4.2 to 23.3) 57.1 
 Postneonatal SUIDd 18 (3.0) 8.5 (4.4 to 16.5) 50.0 
 Infant mortalitye 60 (10.0) 2.7 (2.0 to 3.5) 22.2 
 Inflicted injury deathse 12 (2.0) 7.6 (3.4 to 17.0) 50.0 
 Unintentional injury deathse 12 (2.0) 8.2 (3.6 to 18.7) 50.0 
 SUIDf 18 (3.0) 6.9 (3.7 to 13.1) 46.2 
Hospitalizations    
For any injury, by age 3 489 (81.4) 2.0 (1.8 to 2.2) 18.1 
 For maltreatment-related injury, by age 2 30 (5.0) 9.6 (5.8 to 15.8) 50.0 
 For intracranial injury, by age 1 Suppressedg Suppressedg Suppressedg 
 For fracture of long bones injury, by age 2 27 (4.5) 2.6 (1.7 to 4.0) 23.1 
 Ambulatory sensitive hospitalizations, by age 3 921 (153.3) 1.6 (1.5 to 1.7) 15.4 
Sample size — — 6009 

Children receiving the top 10% of scores generated by the PRM of maltreatment by age 2. We applied Statistics New Zealand confidentiality rules to counts, which included the random rounding of all counts to base 3. Data come from the Integrated Child Dataset, a one-off integrated record of all live births between mid-2004 and the end of 2011 in New Zealand, with health, welfare benefits, child protection system, and justice registers. The data set was put together by the MSD in 2014. —, not applicable.

a

Ratio of the rate (per 1000) of adverse outcomes among top 10% children over the equivalent rate among the rest of children.

b

Proportion of top 10% children who are affected by the outcome among all children with this outcome.

c

Death of an infant aged 29 d–1 y.

d

SUID of an infant aged 29 d–1 y.

e

Death of a live-born infant before 365 d of life.

f

SUID of a live-born infant before 365 d of life.

g

The application of Statistics New Zealand confidentiality rules implies to suppress output if the underlying unrounded count is fewer than 6.

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