Table 2

Demographic characteristics in children and adolescents with moderate to severe closed head injury

CharacteristicVariablen (%)Median (interquartile range)
DRS1DRS22-151
SexMale63  (59)3  (2–4)1 (1–3)
Female43 (41)3 (2–5)1 (1–3)
EthnicityWhite44 (42)3 (2–5)1 (0–3)
African-American56 (53)3 (2–5)3 (1–3)2-150
Other6 (5)2 (0–2)1 (0–1)
Age (y)4–934 (32)4 (2–6)2.5 (1–3)
10–1441 (39)2 (2–4)1 (1–3)
15–2031 (29)3 (2–4)1 (0–3)
Parental education2-152 Low28 (29)3.5 (2–5)2 (1–3)
Medium62 (63)3 (1–4)2 (1–3)
High8 (8)3 (2–3)0.5 (0–1.5)
Socioeconomic status2-153 Low36 (34)2 (2–5)2 (1–3)
Medium34 (32)3 (1–4)1 (1–3)
High36 (34)3 (2–5)1 (0.5–3.5)
  • 2-150 p<0.05.

  • 2-151 Sex compared by rank sum Wilcoxon test; ethnicity, age, parental education, and socioeconomic status compared by Kruskal-Wallis test.

  • 2-152 Parental education: low (less than 24 y), medium (24–32 y) and high (over 32 y) parental years of education; n=98.

  • 2-153 SES based on Hollinghead's four factor index; low 0–28, medium 28–38, high 39–66.