Table 3.

Pain scores from patient survey.

	Score is 0–10, 10 being most severe (with 95% CI)
Before using TENS unit	8.50 (7.52 – 9.48)
While using TENS unit	4.67 (3.51 – 5.89)
After ED visit, and after using TENS unit, on day of survey	2.58 (1.41 – 3.79)

CI, confidence interval; TENS, transcutaneous electrical nerve stimulation; ED, emergency department.