The report found that underreporting of deaths occurs in many countries, and that few countries have completely reliable data on road traffic injuries.
该报告发现，许多国家都存在死亡漏报情况，极少数国家具有完全可靠的道路交通伤害数据。
2
To adjust for underreporting, survey data were collected from three prefectures that represent the hyper-, moderate- and low-endemic regions of Guangxi province.