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Table 2 Sample size estimations based on the prevalence of common psychological disorders at 12 months post injury

From: The impact of injuries study. multicentre study assessing physical, psychological, social and occupational functioning post injury - a protocol

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