Iraq Family Health Survey compared with Lancet studies Lancet surveys of Iraq War casualties

the iraq family health survey published in new england journal of medicine surveyed 9,345 households across iraq , estimated 151,000 deaths due violence (95% uncertainty range, 104,000 223,000) on same period covered in second lancet survey burnham et al. nejm article stated second lancet survey considerably overestimated number of violent deaths , said lancet results were, highly improbable, given internal , external consistency of data , larger sample size , quality-control measures taken in implementation of ifhs.

the figures provided survey on total violent deaths in iraq, lower lancet s estimate factor of 4. however, despite differences, lancet co-author les roberts said there few underlying similarities well, such doubling of mortality rate after invasion of iraq in study, compared 2.4-fold increase reported lancet. has been estimated roberts excess death toll in ifhs survey 400,000, says, puts these figures in league lancet s. roberts says discrepancy between 2 studies arise lancet attributing of post-war excess deaths violence, while one-third of excess deaths due violence in ifhs. see: iraq family health survey#400,000

the authors of ifhs report have disputed conclusion, saying, excess deaths reported burnham et al. included 8.2% of deaths nonviolent causes, inclusion of these deaths not increase agreement between estimates ifhs , burnham et al. defended results of survey saying, unlikely small survey 47 clusters has provided more accurate estimate of violence-related mortality larger survey sampling of 971 clusters.