The incidence of left-handed writing among 590 young Bulgarian adults was 6.4%, significantly lower than that reported in two studies of students in the United States. Of those writing with the right hand, 10.8% stated that they had been forced to change their preferred hand for writing. The parents of the Bulgarian sample had a similar low incidence of left-handed writing (5.9%). Left-handed writing was almost three times more likely if one or both of the parents wrote with the left hand.
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