title: Is Friday the 13th bad for your health?
abstract: OBJECTIVE
  To examine the relation between health, behaviour, and superstition surrounding Friday 13th in the United Kingdom.
  
  
  METHODS
  Retrospective study of paired data comparing driving and shopping patterns and accidents.
  
  
  METHODS
  Drivers, shoppers, and residents.
  
  
  METHODS
  South West Thames region.
  
  
  METHODS
  Numbers of vehicles on motorways; numbers of shoppers in supermarkets; and hospital admissions due to accidents.
  
  
  RESULTS
  There were consistently and significantly fewer vehicles on the southern section of the M25 on Friday the 13th compared with Friday the 6th. The numbers of shoppers were not significantly different on the two days. Admissions due to transport accidents were significantly increased on Friday 13th (total 65 v 45; p < 0.05).
  
  
  CONCLUSIONS
  Friday 13th is unlucky for some. The risk of hospital admission as a result of a transport accident may be increased by as much as 52%. Staying at home is recommended.
authors.affiliation: Department of Public Health, Mid Downs Health Authority, Haywards Health, West Sussex.
authors.forename: T J
authors.initials: TJ
authors.lastname: Scanlon
authors.forename: R N
authors.initials: RN
authors.lastname: Luben
authors.forename: F L
authors.initials: FL
authors.lastname: Scanlon
authors.forename: N
authors.initials: N
authors.lastname: Singleton
mesh_terms: D000059:Accidents / Q000523:psychology / Q000706:statistics & numerical data; D000063:Accidents, Traffic; D000203:Activities of Daily Living; D001334:Automobile Driving; D004630:Emergencies / Q000523:psychology; D015438:Health Behavior; D006760:Hospitalization / Q000706:statistics & numerical data*; D006801:Humans; D012189:Retrospective Studies; D012307:Risk Factors; D013483:Superstitions / Q000523:psychology