Did you read the acknowledged study limitations?Blind groper wrote:To Wumbo
Did you read the conclusion from the Branas study. Her eis the first paragraph.
"After we adjusted for numerous confounding factors, gun possession by urban adults was associated with a significantly increased risk of being shot in an assault. On average, guns did not seem to protect those who possessed them from being shot in an assault. Although successful defensive gun uses can and do occur,33,57 the findings of this study do not support the perception that such successes are likely."
Not very ambiguous. if you are assaulted, and you have a gun, you increase your risk - not reduce it. While it is true that being a nasty bugger might increase your chance of being assaulted, the important point is that having a gun simply puts you more at risk - not less.
And they still did not discern lawful ownership vs illegal ownership which at its face invalidates this study as any sort of indicator of the risks to the lawful gun owner, who is sure to operate in a manner entirely different from an illegal gun owner.A number of study limitations deserve discussion. Our control population was more unemployed than the target population of Philadelphians that it was to intended to represent. Although we did account for employment status in our regression models and our control population was found to be representative of Philadelphians for 5 other indicators, having a preponderance of unemployment among our control participants may mildly erode our study's generalizability. It is also worth noting that our findings are possibly not generalizable to nonurban areas whose gun injury risks can be significantly different than those of urban centers like Philadelphia.64
Certain other variables that may have confounded the association between gun possession and assault were also beyond the scope of our data collection system and, therefore, were not included in our analyses. For instance, any prior or regular training with guns was a potentially important confounding variable that we did not measure and whose inclusion could have affected our findings (although the inclusion of other confounding variables possibly related to training may account for some of this unmeasured confounding).
We also did not account for the potential of reverse causation between gun possession and gun assault. Although our long list of confounders may have served to reduce some of the problems posed by reverse causation,65 future case–control studies of guns and assault should consider instrumental variables techniques to explore the effects of reverse causation. It is worth noting, however, that the probability of success with these techniques is low.66
Finally, our results could have been affected by misclassification of gun possession status. Because of prior discussion63 and likely levels of misclassification,54–56 we concentrated on undetected gun possession. The ensuing sensitivity analyses demonstrated odds ratio estimates that increased and decreased in statistical significance but that did not drop below 1.00, even when challenged with high levels of misclassification. Thus, even after simulating high levels of misclassification bias, a net protective effect of gun possession was not evident.