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 3. Trend change in risk of injury from month to month before and after law allowing experienced car drivers to drive light motorcycles, 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) |
||||||||||||||||
| %a | P-value | %a | P-value | %a | P-value | %a | P-value | |||||||||||
| Trend | ||||||||||||||||||
| Pre-law | –0.30 | 0.253 | –0.10 | 0.951 | –0.40 | < 0.05 | –0.70 | < 0.001 | ||||||||||
| Post-law | 1.30 | < 0.001 | 0.40 | < 0.05 | –0.30 | 0.063 | –0.90 | < 0.001 | ||||||||||
| Change from pre- to post-law period | 1.60 | < 0.001 | 0.50 | 0.177 | 0.10 | 0.595 | –0.20 | 0.446 | ||||||||||
EC, engine capacity.
a In time-series analysis with Poisson regression models.