Stephen J.LurieMD, PhD, Senior Editor
To the Editor: In their article about Americans' reactions to the events of September 11, 2001, Dr Schlenger and colleagues1 report that their survey used "stratified random-digit-dialing telephone sampling techniques, which make it possible to reach every US household with a telephone (95% of US households)." The survey was administered 1 to 2 months after the attacks and the results were stratified according to the proximity to the crash sites.
Henzlova MJ. Psychiatric Consequences of September 11. JAMA. 2002;288(21):2683. doi:10.1001/jama.288.21.2683