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Table 5 Analysis of characteristics associated with not completing high school for young people with an index injury hospitalisations compared to a matched comparison by grade, linked health and school performance data NSW, 2005–2018

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

  Year 11
n = 43,987 in each cohort
Year 112
n = 41,451 in each cohort
Year 123
n = 34,255 in each cohort
  n %4 n %4 n %4
No school completion
 Injured cohort 1723 3.9 9752 23.5 10,475 30.6
 Non-injured cohort 991 2.3 5996 14.5 6274 18.3
  Mean (median) SD Mean
(median)
SD Mean (median) SD
Time since index injury hospitalisation to school completion (months) 65.5 (60.4) 42.7 69.6 (65.0) 43.5 72.9 (69.4) 43.9
Characteristics ARR5 95%CI ARR5 95%CI ARR5 95%CI
Injury
 No 1   1   1  
 Yes 2.17 1.73–2.72 1.95 1.78–2.14 1.93 1.78–2.08
Gender
 Male 1   1   1  
 Female 0.91 0.85–0.99 0.81 0.78–0.83 0.85 0.83–0.87
Health condition
 No 1   1   1  
 Yes 1.63 1.30–2.04 1.19 1.09–1.31 1.26 1.17–1.36
LBOTE
 No 1   1   1  
 Yes 0.76 0.54–1.06 0.87 0.76–0.99 0.82 0.71–0.92
 Not known 0.59 0.50–0.69 0.66 0.62–0.69 0.69 0.65–0.72
Socioeconomic status
 Most disadvantaged 0.49 0.43–0.55 0.66 0.63–0.69 0.65 0.63–0.67
 2 0.58 0.52–0.66 0.69 0.66–0.72 0.67 0.65–0.70
 3 0.73 0.64–0.83 0.73 0.70–0.76 0.71 0.69–0.74
 4 0.80 0.68–0.93 0.78 0.75–0.83 0.78 0.74–0.81
Least disadvantaged 1   1   1  
Parental education
 High school 0.80 0.58–1.10 0.75 0.66–0.86 0.69 0.61–0.79
 Certificate I-IV, trade, diploma 1.73 1.26–2.36 0.90 0.79–1.03 0.82 0.73–0.93
Bachelor/higher degree 1   1   1  
Not stated 3.06 2.20–4.24 1.47 1.28–1.68 1.20 1.05–1.36
  1. 1Year 10 type III GEE analysis: Injury p < 0.0001; Gender p < 0.02; Health condition p < 0.0008; LBOTE p < 0.0001; socioeconomic status p < 0.0001; Parental education p < 0.0001; and Injury x health condition p < 0.05
  2. 2Year 11 type III GEE analysis: Injury p < 0.0001; Gender p < 0.0001; Health condition p < 0.0004; LBOTE p < 0.0001; socioeconomic status p < 0.0001; Parental education p < 0.0001; and Injury x health condition p < 0.0001
  3. 3Year 12 type III GEE analysis: Injury p < 0.0001; Gender p < 0.02; Health condition p < 0.0008; LBOTE p < 0.0001; socioeconomic status p < 0.0001; Parental education p < 0.0001; and Injury x health condition p < 0.0001
  4. 4 Percent calculated for young people in injury and comparison cohorts not completing the school grade.
  5. 5Adjusted relative risk excludes missing socioeconomic status