Self-assessed and examiner-assessed writing hand posture in Swedish left-handers.

Writing hand posture was studied in 48 male and 54 female left-handed Swedish college students. Inverted posture was more common with examiner-assessment than with self-assessment and was more common in males. Examiner-assessed inversion frequency was lower than that reported from American samples but higher than that from Australian samples. Writing style was related to hand posture, printing being more common in non-inverted writers. Degree of lateral preference, presence of familial sinistrality and birth complications were not associated with writing hand posture.