Multiple birth-risk factors and handedness in elementary school children.
The relationships between a set of birth-risk factors, i.e., sex, parity, and maternal age, and handedness were computed for 600 elementary school children. None of these birth-risk variables (or relevant combinations of them) were significantly related to handedness. These data further question the validity of the hypothesis that left-handedness results from stressful prenatal and birth conditions.
D000328:Adult; D002648:Child; D005260:Female; D007839:Functional Laterality; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D008297:Male; D008423:Maternal Age; D010298:Parity; D012306:Risk; D012737:Sex Factors