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Table 4 Multilevel model of characteristics associated with a below NMS NAPLAN assessment for young people with an index injury hospitalisations during 2005–2018 compared to a matched comparison by assessment, linked health and school performance data NSW

From: The impact of childhood injury and injury severity on school performance and high school completion in Australia: a matched population-based retrospective cohort study

  Numeracy1 Reading1 Spelling1 Grammar1 Writing (Persuasive 2011–2018) 1
  ARR2 95%CI ARR2 95%CI ARR2 95%CI ARR2 95%CI ARR2,3 95%CI
Injury
 No 1   1   1   1   1  
 Yes 1.12 1.06–1.17 1.09 1.04–1.13 1.13 1.09–1.18 1.11 1.06–1.15 1.07 1.04–1.11
Gender
 Male 1   1   1   1   1  
 Female 0.80 0.77–0.82 0.55 0.53–0.57 0.49 0.47–0.50 0.56 0.54–0.57 0.41 0.40–0.42
Health condition
 No 1   1   1   1    
 Yes 1.78 1.58–2.00 1.60 1.45–1.78 1.59 1.44–1.75 1.53 1.39–1.68
LBOTE
 No 1   1   1   1   1  
 Yes 0.91 0.87–0.95 0.83 0.80–0.86 0.62 0.59–0.64 0.81 0.78–0.83 0.63 0.61–0.65
Socioeconomic status
 Most disadvantaged 0.31 0.29–0.34 0.33 0.31–0.35 0.36 0.34–0.38 0.37 0.35–0.39 0.39 0.38–0.41
 2 0.40 0.37–0.43 0.42 0.40–0.44 0.44 0.42–0.47 0.45 0.43–0.48 0.46 0.44–0.48
 3 0.50 0.46–0.53 0.50 0.47–0.53 0.53 0.51–0.56 0.54 0.51–0.57 0.55 0.53–0.58
 4 0.62 0.57–0.68 0.63 0.59–0.68 0.67 0.63–0.72 0.66 0.62–0.70 0.67 0.63–0.71
 Least disadvantaged 1   1   1   1   1  
NAPLAN Grade
 3 1   1   1   1   1  
 5 1.32 1.27–1.38 1.18 1.14–1.22 0.88 0.85–0.90 0.86 0.84–0.89 0.72 0.71–0.74
 7 1.60 1.51–1.69 0.90 0.87–0.94 0.67 0.64–0.69 0.69 0.67–0.71 0.48 0.47–0.50
 9 1.12 1.07–1.16 1.24 1.20–1.29 1.19 1.16–1.23 1.20 1.17–1.24 2.21 2.13–2.30
Parental education
 Bachelor/higher degree 1   1   1   1   1  
 Other 0.37 0.35–0.39 0.35 0.33–0.36 0.40 0.38–0.42 0.37 0.36–0.39 0.42 0.41–0.44
School sector
 Government 1   1   1   1   1  
 Catholic 1.02 0.92–1.12 0.98 0.91–1.06 1.01 0.94–1.07 1.03 0.97–1.10 0.92 0.87–0.97
 Independent 0.41 0.39–0.44 0.46 0.44–0.48 0.54 0.52–0.56 0.50 0.49–0.52 0.47 0.45–0.49
  1. 1Numeracy, reading, spelling, grammar, and writing type III tests of fixed effects: Injury p<0.0001; Gender p<0.0001; Health condition p<0.0001; LBOTE p<0.0001; socioeconomic status p<0.0001; NAPLAN grade p<0.0001; Parental education p<0.0001; School sector p<0.0001; and hospital LOS p<0.0001. 2Adjusted relative risk excludes 176 with missing socioeconomic status, 858 with missing LBOTE and 92 home schooled. 3Writing excludes comorbidity status due to low cell size.