Motorized 2–3-wheelers-related death is high due to the exposed body of the driver/passenger and the high speed. The United Nation (UN) Decade of Action for road safety aimed to reduce road traffic deaths by 50% by the year 2020. We aimed to study the factors affecting the death rates of motorized 2–3 wheelers injured victims and whether the reduction in the death rates has met the UN target. Data were retrieved from the WHO Global Status Reports on Road Safety published over 2009 to 2018 which covered the years of 2007 to 2016. Studied variables included motorized 2–3 wheelers death rates, percentage of helmet-wearing rate, helmet law enforcement, speed law enforcement, gross national income per capita, vehicles/person ratio, and motorized 2–3 wheelers/person ratio. A mixed linear model was used to define factors affecting the change of motorized 2–3 wheelers death rates over time. The global mean motorized 2–3 wheelers death rates increased from 2.37/100,000 population to 3.23/100,000 population over the studied decade (a relative ratio of 1.36) which was not statistically significant. Factors that affected mortality included GNI (p = 0.025), motorized 2–3 wheelers per person ratio (p < 0.0001), percentage of helmet wearing rate (p = 0.046), and the interaction between vehicle/person ratio and motorized 2–3 wheelers/person ratio (p = 0.016). There was a significant increase in the death rates over time in the low-income countries (a relative ratio of 2.52, p = 0.019, Friedman test), and middle-income countries (a relative ratio of 1.46, p < 0.0001, Friedman test), compared with a significant decrease in the high-income countries (a relative ratio of 0.72, p < 0.0001, Friedman test). Global mortality of motorized 2–3 wheelers has increased by a relative ratio of 1.36 over a recent decade. The UN target of reducing death was not met. The increase was related to the increase in motorized 2–3 wheelers per person ratio and economic inequity which has to be addressed globally. The economic global gap significantly impacts the mortality rates of motorized 2–3 wheelers.

中文翻译：

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十年间机动 2-3 轮车的死亡率：一项全球研究

由于驾驶员/乘客的身体裸露和高速行驶，与机动 2-3 轮车相关的死亡率很高。联合国 (UN) 道路安全行动十年旨在到 2020 年将道路交通死亡人数减少 50%。我们旨在研究影响机动 2-3 轮车受伤受害者死亡率的因素，以及是否减少死亡率达到了联合国的目标。数据来自 2009 年至 2018 年发布的世卫组织全球道路安全状况报告，涵盖 2007 年至 2016 年。研究变量包括机动 2-3 轮车死亡率、头盔佩戴率百分比、头盔执法、速度法执法、人均国民总收入、车辆/人比率和机动 2-3 轮车/人比率。混合线性模型用于定义影响机动 2-3 轮车死亡率随时间变化的因素。在所研究的十年中，全球平均机动 2-3 轮车死亡率从 2.37/100,000 人口增加到 3.23/100,000 人口（相对比率为 1.36），这没有统计学意义。影响死亡率的因素包括 GNI (p = 0.025)、机动 2-3 轮车/人比率 (p < 0.0001)、头盔佩戴率百分比 (p = 0.046) 以及车辆/人比率与机动 2-3惠勒/人比率（p = 0.016）。随着时间的推移，低收入国家（相对比率为 2.52，p = 0.019，弗里德曼检验）和中等收入国家（相对比率为 1.46，p < 0.0001，弗里德曼检验）的死亡率显着增加), 与高收入国家相比显着下降（相对比率为 0.72，p < 0.0001，弗里德曼检验）。近十年来，机动 2-3 轮车的全球死亡率相对增加了 1.36。联合国减少死亡的目标没有实现。这一增长与每人机动 2-3 轮车比例的增加和必须在全球范围内解决的经济不平等有关。全球经济差距显着影响机动 2-3 轮车的死亡率。这一增长与每人机动 2-3 轮车比例的增加和必须在全球范围内解决的经济不平等有关。全球经济差距显着影响机动 2-3 轮车的死亡率。这一增长与每人机动 2-3 轮车比例的增加和必须在全球范围内解决的经济不平等有关。全球经济差距显着影响机动 2-3 轮车的死亡率。