Healthy controls (n=50) | Head injury (n=25) | Orthopaedic controls (n=20) | Statistic | p Value | ||
---|---|---|---|---|---|---|
ANOVA: | ||||||
Age | ||||||
Mean (SD) | 30.16 (11.30) | 26.96 (9.14) | 34.00 (10.97) | F=2.40 | 0.0962 | |
95% CI | 29.95–33.37 | 23.19–30.73 | 28.87–39.13 | NS | ||
Years education | ||||||
Mean (SD) | 14.67 (2.38) | 11.89 (1.58) | 12.82 (2.48) | F=14.39 | 0.0001 | |
95% CI | 13.99–15.35 | 11.24–12.54 | 11.67–13.98 | |||
χ2: | ||||||
Sex (M/F) | ||||||
n | 26/24 | 20/5 | 18/2 | |||
% | 52/48 | 80/20 | 90/10 | χ2=11.85 | 0.003 | |
Socioeconomic status | ||||||
I | 3 | 0 | 2 | |||
II | 19 | 5 | 6 | |||
III | 24 | 17 | 10 | χ2=4.26 | 0.371 | |
IV | 4 | 2 | 1 | NS | ||
V | 0 | 1 | 1 |
For χ2 analysis of socioeconomic status, I and II were combined and IV and V were combined to increase cell size.