Table 5. Relative risks (RR) and corresponding 95% confidence intervals (CIs) for the associations between non-TBI fall injuries, mild TBI and moderate to severe TBI up to age 25 y on adulthood poor functioning.

	Model I	Model II	Model III
	RR [95% CI]	RR [95% CI]	RR [95% CI]
Non-TBI fall injury
Disability pension	1.14 [1.09; 1.20]	1.09 [1.03; 1.14]	1.01 [0.91; 1.12]
Psychiatric visit	1.15 [1.12; 1.18]	1.11 [1.08; 1.14]	1.14 [1.08; 1.21]
Psychiatric hospitalisation	1.28 [1.23; 1.34]	1.23 [1.18; 1.28]	1.26 [1.15; 1.38]
Premature mortality	1.21 [1.06; 1.39]	1.17 [1.02; 1.33]	1.14 [0.86; 1.50]
Low education	1.14 [1.11; 1.17]	1.11 [1.08; 1.14]	1.05 [0.99; 1.11]
Welfare recipiency	1.09 [1.06; 1.12]	1.04 [1.01; 1.07]	1.04 [0.98; 1.11]
Mild TBI
Disability pension	1.66 [1.61; 1.72]	1.40 [1.35; 1.45]	1.36 [1.25; 1.47]
Psychiatric visit	1.50 [1.47; 1.53]	1.36 [1.33; 1.38]	1.31 [1.25; 1.36]
Psychiatric hospitalisation	1.91 [1.86; 1.97]	1.67 [1.62; 1.71]	1.52 [1.42; 1.63]
Premature mortality	1.60 [1.47; 1.75]	1.40 [1.29; 1.53]	1.26 [1.02; 1.55]
Low education	1.55 [1.52; 1.58]	1.41 [1.37; 1.44]	1.25 [1.19; 1.31]
Welfare recipiency	1.52 [1.49; 1.56]	1.28 [1.26; 1.32]	1.18 [1.13; 1.23]
Moderate to severe TBI
Disability pension	2.19 [2.06; 2.32]	1.78 [1.67; 1.89]	2.06 [1.78; 2.38]
Psychiatric visit	1.61 [1.56; 1.67]	1.43 [1.38; 1.48]	1.34 [1.23; 1.45]
Psychiatric hospitalisation	2.09 [1.99; 2.21]	1.77 [1.67; 1.87]	1.75 [1.54; 1.99]
Premature mortality	2.26 [1.95; 2.61]	1.94 [1.68; 2.24]	1.92 [1.34; 2.74]
Low education	1.69 [1.62; 1.75]	1.53 [1.48; 1.59]	1.37 [1.27; 1.49]
Welfare recipiency	1.64 [1.58; 1.70]	1.34 [1.29; 1.39]	1.21 [1.12; 1.32]

Notes: Model I: Full sample, adjusted for sex, birth order, and birth year. Model II: Additional adjustments for individual and parental highest achieved education levels, parental income, parental lifetime criminal and psychiatric histories, and maternal single status. Model III: Within-family estimates that are additionally adjusted for individual educational attainment at age 26 y.