Fig. 1

Multilevel model of characteristics associated with a below NMS NAPLAN assessment for young people by injury severity or with a TBI-related hospitalisation during 2005–2018 compared to a matched comparison by assessment, linked health and school performance data NSW ^1–4 (¹Minor injury adjusted relative risk excludes 174 with missing socioeconomic status, 808 with missing LBOTE and 90 home schooled and writing excludes comorbidity status due to low cell size. ²Moderate injury adjusted relative risk excludes 2 with missing socioeconomic status, 43 with missing LBOTE and 2 home schooled. Spelling excludes comorbidity status and writing (persuasive) excludes comorbidity status and LBOTE due to small cell sizes. ³Serious adjusted relative risk excludes 7 with missing LBOTE. Grammar excludes comorbidity status and writing (persuasive) excludes comorbidity status and LBOTE due to small cell sizes and school sector. ⁴Traumatic brain injury (TBI) adjusted relative risk excludes 10 with missing socioeconomic status, 19 with missing LBOTE and 4 home schooled. Grammar and writing (persuasive) exclude comorbidity status due to small cell sizes.)