Table 2 Sample size estimations based on the prevalence of common psychological disorders at 12 months post injury
Psychological disorder | Prevalence at 12 months[16] | Difference in EQ5D assume SD = 0.23, N = 456 | Difference in EQ5D assume SD = 0.3, N = 456 |
|---|---|---|---|
Depression | 6% | 0.127 | 0.166 |
PTSD | 17% | 0.081 | 0.105 |
Anxiety | 19% | 0.077 | 0.101 |
Travel phobia | 16% | 0.083 | 0.108 |