Friday the 13th: Doubly unluckyBMJ 1994; 308 doi: http://dx.doi.org/10.1136/bmj.308.6926.473a (Published 12 February 1994) Cite this as: BMJ 1994;308:473
- C D O'Brien
- Blundellsands, Liverpool L23 6XY
- Bolton General Hospital, Bolton BL4 0JR.
EDITOR, - There is some bad news to add to T J Scanlon and colleagues' finding that the risk of a transport accident may be increased by as much as 52% on Friday the 13th (compared with Friday the 6th).1 Actuarial investigation has shown that the 13th of a month is more likely to be a Friday than any other day.2 …
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