Table 2.

TENS tolerance stimulation intensities (mA)

Stimulation intensity	Descriptive statistics (n=143)
Strong but comfortable 1
Median (IQR)	37.5 (35.6–39.0)
Range	20.4–62.0
Strong but comfortable 2
Median (IQR)	39.2 (37.1–45.3)
Range	24.8–62.0
Noxious
Median (IQR)	40.4 (38.4–46.3)
Range	24.8–62.0
Comfortable 2–comfortable 1
Median (IQR)	1.7 (0.2–6.3)
Range	−9.0 to 24.1
Noxious–comfortable 1
Median (IQR)	3.5 (2.0–7.5)
Range	0–24.1

Abbreviation: TENS, Transcutaneous electrical nerve stimulation.