Table 1 Unknowns and ill-defined cases in death registration data from 29 (of 30) provinces
Death recordsRedistributed over
Total death records244341 (100%)
Unknown province2962 (1.2%)Specified provinces
Unknown sex373 (0.2%)Specified sex
Unknown age1845 (0.8%)Specified age
Unknown residence (urban/rural)0 (0.0%)
Total transport injuries25531 (10.4%)
Unspecified transport injuries15122 (6.2%)Specified transport mode
Injuries of undetermined intent126 (0.1%)All specified injuries (including transport)
Unspecified cause of death; unregistered cause of death; cause under investigation9156 (3.7%)All causes
Septicaemia1009 (0.4%)
Mental retardation405 (0.2%)
Convulsion newborn0 (0.0%)
Senility13505 (5.5%)
Sudden infant death syndrome122 (0.0%)
Convulsions not elsewhere classified19 (0.0%)
Other ill-defined1559 (0.6%)
  • After redistribution, transport accidents total 28 221 (ie, increase of 10.5%). This value does not include deaths in the province of Tehran (which is not covered by the death registration system).