Table 1.
Demographic characteristics of study sample
| Severe TBI |
Complicated mild/moderate TBI |
OI |
Significance test |
||
|---|---|---|---|---|---|
| n = 16 | n = 44 | n = 74 | F/ χ2 | p-Value | |
| Age at injury | |||||
| M (SD) | 5.04 (0.98) | 5.16 (1.23) | 5.09 (1.07) | 0.09 | .913 |
| Range | 3.64 to 6.62 | 3.03 to 6.93 | 3.15 to 6.88 | ||
| Age at follow-up | |||||
| M (SD) | 12.17 (1.52) | 11.99 (1.05) | 11.88 (1.09) | ||
| Range | 10.66 to 16.68 | 10.13 to 15.17 | 10.27 to 16.96 | 0.48 | .618 |
| Baseline time since injury (months) | |||||
| M (SD) | 1.95 (1.59) | 1.50 (0.80) | 1.15 (0.50) | ||
| Range | 0.53 to 6.18 | 0.33 to 3.45 | 0.26 to 2.30 | 7.366 | .001* |
| Follow-up time since injury (years) | |||||
| M (SD) | 7.13 (1.35) | 6.83 (1.16) | 6.78 (1.05) | ||
| Range | 4.47 to 10.06 | 4.64 to 9.12 | 4.79 to 10.58 | 0.61 | .543 |
| Sex | |||||
| (% female) | 38 | 43 | 47 | 0.58 | .749 |
| Race | |||||
| (% not Caucasian) | 38 | 25 | 23 | 1.47 | .479 |
| SES z-scorea | |||||
| M (SD) | −0.42 (0.68) | −0.01 (1.05) | 0.11 (0.93) | 2.09 | .128 |
| Median household income | 57,447.36 | 59,902.34 | 64,705.28 | 0.78 | .463 |
| M (SD) | (20,520.01) | (26,050.81) | (22,839.21) | ||
| Maternal education (years) | |||||
| M (SD) | 14.29 (2.92) | 13.00 (2.60) | 13.79 (2.41) | 2.46 | .090 |
| Paternal education (years) | |||||
| M (SD) | 13.43 (2.41) | 12.83 (2.10) | 13.87 (2.51) | 2.68 | .072 |
a
Based on census track income and parent/caregiver education at baseline.
*
p<.05