Cause of pain No trauma history (N=18) Trauma history (N=115) > 10 txs (N=38) ≤ 10 txs (N=95)
Auto accident   30 11 19
Repetitive stress injury   23 8 15
Falls   16 3 13
Sports   11 1 10
Lifting   11 2 9
Failed back or neck surgery   10 4 6
Spinal stenosis   14 4 10
Others 18   5 13
Table 1: Cause of pain in patients undergoing eToims (N=133).