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. 2017 Sep 14;2017(9):CD011976. doi: 10.1002/14651858.CD011976.pub2
Study Reason for exclusion
Al‐Smadi 2003 Not defined neuropathic pain.
Bahtereva 2009 Not a standard TENS unit application. Unable to contact authors.
Bloodworth 2004 Not randomised/quasi‐randomised trial.
Bourke 1994 Not randomised/quasi‐randomised trial.
Casale 1985 Outcome measure not pain intensity.
Cheing 2005 Pain intensity scoring in response to stimulus evoked pain. Stimulus applied by researcher.
Chitsaz 2009 Outcome measure a VAS composite of pain and sensory complaints.
Connolly 2013 All participants received perceptual TENS.
Finsen 1988 Outcome measure not Pain intensity.
Forst 2004 Outcome measure a VAS composite of pain and sensory symptoms.
Franca 2013 Not defined neuropathic pain.
Gossrau 2011 TENS applied below perceptual level.
Heidenreich 1988 Not clearly randomised trial.
Ing 2015 Not a standard TENS device.
Katz 1991 Outcome measured < 24 hours post‐treatment.
Kumar 1997 Outcome measure not pain intensity. VAS was a composite of pain intensity, paraesthesia and sleep disturbance. Outcome measure not self‐reported.
Kumar 1998 Outcome measure not pain intensity. VAS was a composite of pain intensity, paraesthesia and sleep disturbance. Outcome measure not self‐reported.
Lehmkuhl 1978 Outcome measured < 24 hours post‐treatment.
Marques 2014 Not defined neuropathic pain.
Mysliwiec 2012 Outcome measure not pain intensity. Not defined neuropathic pain participants.
Norrbrink 2009 All participants received TENS.
Oosterhof 2008 No pain intensity follow‐up data. Unable to extract potential neuropathic participant data.
Pourmomeny 2009 Outcome measure not pain intensity. VAS was a composite measure of pain and non‐pain symptoms.
Reichstein 2005 Not all participants had pain as a symptom. Outcome measure encompassed non‐pain symptoms.
Sherry 2001 Not defined neuropathic pain.
Stepanovic 2015 Not defined neuropathic pain.
Thorsteinsson 1977 Outcome measured < 24 hours post‐treatment.
Warke 2004 Not defined neuropathic pain condition in study.
Warke 2006 Not defined neuropathic pain condition in study.
Wong 2016 Not randomised/quasi‐randomised trial.
Yameen 2011 All participants received TENS.

TENS: transcutaneous electrical nerve stimulation; VAS: visual analogue scale.