Bulletin of the World Health Organization

Road injuries and relaxed licensing requirements for driving light motorcycles in Spain: a time-series analysis

Katherine Pérez, Marc Marí-Dell’Olmo, Carme Borrell, Manel Nebot, Joan R Villalbí, Elena Santamariña & Aurelio Tobias

Volume 87, Number 7, July 2009, 497-504

Table 1. Observed number of people injured on the road before and after law allowing experienced car drivers to drive light motorcycles, versus number expected had the law not been passed, by type of vehicle, Barcelona, Spain, 1 January 2002 to 30 April 2008

Period Motorcycle
Moped
Car
Light (EC 51–125 cc)
Heavy (EC > 125 cc)
(EC 50 cc)
No. Monthly mean No. Monthly mean No. Monthly mean No. Monthly mean
Pre-law
Jan.–Sep. 2002 956 106.2 870 99.7 1 937 215.2 3 404 378.2
Oct. 2002–Sep. 2003 1 312 109.3 1 114 92.8 2 700 225.0 4 466 372.2
Oct. 2003–Sep. 2004 1 183 98.6 1 146 95.5 2 413 201.1 3 933 327.8
Total 3 451 104.6 3 130 94.7 7 050 213.6 11 803 357.7
Post-law
Oct. 2004–Sep. 2005 1 482 123.5 1 352 112.7 2 267 188.9 3 805 317.1
Oct. 2005–Sep. 2006 1 731 144.3 1 488 124.0 2 023 168.6 3 421 285.1
Oct. 2006–Sep. 2007 2 119 176.6 1 487 123.9 2 006 167 3 130 260.8
Oct. 2006–Apr. 2008 1 301 185.9 902 128.9 1 221 174.4 1 592 227.4
Total 6 633 154.3 5 259 121.6 7 517 174.8 11 948 277.9
Expected no. (95% CI) 4 534 NA 4 038 NA 8 217 NA 11 267 NA
(3 849–5 218) (3 881–5 115) (7 246–9 188) (10 028–12 507)
No. observed minus no. expected (95% CI) 2 099 NA 691 NA –700 NA 681 NA
(1 418–2 784) (34–1 348) (–1 261–271) (–559–1 920)

CI, confidence interval; EC, engine capacity; NA, not applicable.

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