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. 2011 Jul 21;64(3):234–236. doi: 10.1016/S0377-1237(08)80101-3

Table 3.

Mean number of days of incapacitation in the two groups along with range, percentiles and modes

Management Mean Standard deviation Minimum 25% Median 75% Maximum Mode
Ultrasound treatment 25.4615 3.8447 19.0000 23.0000 25.0000 29.00000 34.0000 21.0000
Placebo 39.9286 5.3605 33.0000 36.0000 39.0000 43.0000 55.0000 39.0000

T Statistics (two sample) = 12.8752; p value < 0.001