Left handedness among preparatory school students in Alexandria

ABSTRACT

In order to study left handedness among school students, 13636 students were included to estimate the prevalence of left handedness among the Alexandria preparatory school. The overall prevalence of left handedness was 2.65%. left handedness in male sex [3.12%] was higher than in female sex [2.19]. bilateral handedness was found in 0.06%. the prevalence of consanguinity among left handed group [19.61] was more than that among the right handed group [16.49%]. Left handed mothers were found in 7.73% of left handed group and 1.89% in the control group. The prevalence of left handed relatives among the left handed students was 32.87% compared with 19.19% in the right handed students. The scholastic achievement among the left handers was more or less similar to that among the right handed with no significant difference