TY - JOUR PY - 2016// TI - Evaluating the impact of criminalizing drunk driving on road-traffic injuries in Guangzhou, China: a time-series study JO - Journal of epidemiology A1 - Zhao, Ang A1 - Chen, Renjie A1 - Qi, Yongqing A1 - Chen, Ailan A1 - Chen, Xinyu A1 - Liang, Zijing A1 - Ye, Jianjun A1 - Liang, Qing A1 - Guo, Duanqiang A1 - Li, Wanglin A1 - Li, Shuangming A1 - Kan, Haidong SP - 433 EP - 439 VL - 26 IS - 8 N2 - BACKGROUND: Road-traffic injury (RTI) is a major public-health concern worldwide. However, the effectiveness of laws criminalizing drunk driving on the improvement of road safety in China is not known.

METHODS: We collected daily aggregate data on RTIs from the Guangzhou First-Aid Service Command Center from 2009 to 2012. We performed an interrupted time-series analysis to evaluate the change in daily RTIs before (January 1, 2009, to April 30, 2011) and after (May 1, 2011, to December 31, 2012) the criminalization of drunk driving. We evaluated the impact of the intervention on RTIs using the overdispersed generalized additive model after adjusting for temporal trends, seasonality, day of the week, and holidays. Daytime/Nighttime RTIs, alcoholism, and non-traffic injuries were analyzed as comparison groups using the same model.

RESULTS: From January 1, 2009, to December 31, 2012, we identified a total of 54 887 RTIs. The standardized daily number of RTIs was almost stable in the pre-intervention period but decreased gradually in the post-intervention period. After the intervention, the standardized daily RTIs decreased 9.6% (95% confidence interval [CI], 6.5%-12.8%). There were similar decreases for the daily daytime and nighttime RTIs. In contrast, the standardized daily cases of alcoholism increased 38.8% (95% CI, 35.1%-42.4%), and daily non-traffic injuries increased 3.6% (95% CI, 1.4%-5.8%).

CONCLUSIONS: This time-series study provides scientific evidence suggesting that the criminalization of drunk driving from May 1, 2011, may have led to moderate reductions in RTIs in Guangzhou, China.

Language: en

LA - en SN - 0917-5040 UR - http://dx.doi.org/10.2188/jea.JE20140103 ID - ref1 ER -