a significant trendP < .001
The relationship between the severity of motor disabilities and OMQ Scale total scores, hypothesis 1 (n = 99), was tested by a Jonckheere-Terpstra test, which showed a significant trend in the data: the more severe the motor disabilities, the lower the OMQ Scale total scores ( J = 2474.00; z = 7.13; P < .001; r = 0.72).