Objective: To test whether handedness is associated with a change in longevity.
Design: Archival survey.
Setting: British Isles.
Subjects: All first class cricketers born before 1961 whose bowling hand was specified (right, n = 5041; left, n = 1132) in a comprehensive encyclopaedia.
Main Outcome Measures: Bowling hand and life span.
Results: Regression analysis of the 5960 players born between 1840 and 1960 (3387 dead, 2573 alive) showed no significant relation between mortality and handedness (P = 0.3). Left handedness was, however, associated with an increased likelihood of death from unnatural causes (P = 0.03, log hazard 0.37, 95% confidence interval 0.04 to 0.70). This effect was especially related to deaths during warfare (P = 0.009, log hazard 0.53, 0.13 to 0.92).
Conclusion: Left handedness is not, in general, associated with an increase in mortality.
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| http://dx.doi.org/10.1136/bmj.309.6970.1681 | DOI Listing |
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