A Case-control Study On The Motor Vehicle Driver's Risk Factors For The Road Traffic Injury In 5 Zhejiang Districts

The aim of the study is to find out the risk factors of road traffic injury in Zhejiang urban area according to the factors which have been found or unsure so far, and lay foundations for taking effective countermeasures to decrease the risk of road traffic injury.The case of study is the injured four-wheel motor vehicle drivers or the injured two-whieel motorcycle drivers in Zhejiang 5 districts from May to November 2008. The control is matched by age(±5), sex, driving role, living community, and must be safe in the past 12 month driving. The risk factors of four-wheel motor vehicle and two-wheel motorcycle is analyzed by using case-control study and case-crossover study, and the multicollinearity is checked by condition index and variance decomposition proportion, and cleared by factor analysis.The risk factors of four-wheel injured drivers are the history of unwearing sealbelt(OR=4.87,95%CI1.35~17.51), the history of jumping the lights(OR=3.92,95%CI1.29~11.95), shortsighted(OR=0.15,95%CI0.046~0.49), all-purpose road OR=4.52,95%CI1.53~13.34), the maintain frequency(never maintain OR=38.03,95%CI1.60~902.62, more than 1 year OR=29.37,95%CI1.59~541.86, 1~5 per year OR=17.79,95%CI1.31~242.38), smoking(OR=2.71,95%CI2.72~82.06). The risk factors of two-wheel injured drivers are the history of speeding(OR=5.84,95%CI1.91~17.84), the history of drunk driving(OR=3.21,95%CI1.12~9.15), the history of overloading(OR=7.23,95%CI1.09~47.87), the history of driving without license(17.68,95%CI2.31~135.05), shortsighted(OR=0.079,95%CI0.013~0.49), vehicle age(OR=0.63,95%CI0.48~0.83), primary school education(OR=13.94,95%CI1.34~144.99), professional drivers(OR=26.72,95%CI1.00~715.98), worker and farmer(OR=10.480,95%CI1.34~81.72), never maintain(OR=2.55,95%CI0.24~27.31), fatigue driving(OR=2.09,95%CI3.11~20.98).Apart from the shortsighted and chronic fatigue factors, the factors of four-wheel injured drivers and two-wheel injured drivers are agreed with other studies. Next, we need to take effective measures to decease the risk of road traffic injury.