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. 2011 Jul 15;11:298. doi: 10.1186/1471-2407-11-298

Table 4.

Distribution of scores

Communication Navigation Total score
Possible range 13-65 7-35 20-100

Mean (sd) 47.9 (8.1) 30.5 (4.2) 78.3 (10.7)

Median (IQR) 48 (43-53) 31 (28-34) 79 (72-85)

'Floor' - % with lowest possible score 0.4 0 0

'Ceiling' - % with highest possible score 1.1 20.9 0