The objective of the study was to estimate the magnitude of road traffic fatalities occurring in Karachi, Pakistan. A 2-source capture—recapture model was applied to obtain a reliable estimate of the magnitude of the problem. A conservative adjusted estimate of fatalities generated, using data from 2 sources matched by at least name, gender, age, and location. In 2008, police reported 616 fatalities whereas hospitals recorded 1092 fatalities due to road traffic crashes. The capture— recapture analysis estimated at least 1375 fatalities. Police data show 55% deficit from the estimated figure and 43.6% deficit from the observed one, whereas hospital data show 20.6% deficit from the estimation. Road traffic crashes and resulting fatalities and injuries are a much more substantial health problem than is evident from official statistics. The capture—recapture analysis can be used as a tool to provide affordable and reliable estimates in developing countries where routine official statistics suffer from underreporting.
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