A study of non-treatment-seeking infantry soldiers who had been deployed to Afghanistan or Iraq Tobin, et al (2014) found that 44.0% reported chronic pain (pain for more than 90 days). Of those chronic pain suffers, 48.3% reported symptoms for over one year. Additionally, 15.1% of this non-treatment-seeking sample was using opioids. The comparable rates of civilian chronic pain and opioid use at the time of this study were 26.0% and 4.0%. Alarmingly, 44.1% of soldiers reporting opioid use also reported mild to no pain in the past month and 5.6% reported no pain (Tobin, et al, 2014).