Research Article

Modeling the Prospective Relationships of Impairment, Injury Severity, and Participation to Quality of Life Following Traumatic Brain Injury

Table 3

Indirect effects of corrected path model.

EffectUnstandardized estimateStandardized estimateSECrit ratio95% CI

MOT → MOB → LSI0.0650.0380.0802.584−0.013, 0.144
MOT → OCC → LSI*0.0740.0430.0312.3700.013, 0.135
COG → MOB → LSI***0.0660.0260.0173.8650.032, 0.099
COG → OCC → LSI*0.1090.0430.0482.2910.016, 0.203
AIS → OCC → LSI**−0.142−0.0270.050−2.846−0.240, −0.044
MOT → MOB → Health−0.023−0.0690.012−1.894−0.047, 0.001
MOT → OCC → Health***−0.016−0.0490.003−6.329−0.022, −0.011
COG → MOB → Health***−0.023−0.0470.004−6.408−0.031, −0.016
COG → OCC → Health**−0.024−0.0490.008−3.067−0.040, −0.009
AIS → OCC → Health***0.0320.0300.00311.7490.026, 0.037

, , .
MOT: motor functional independence at 12-month post-discharge; COG: cognitive functional independence at 12-month post-discharge; AIS: Abbreviated Injury Scale head severity ratings obtained by chart review; MOB: mobility at 48-month post-discharge; OCC: occupational activities at 48-month post-discharge; LSI: life satisfaction inventory at 60-month post-discharge; Health: self-rated health status at 60-month post-discharge; Crit Ratio: critical ratio.