Table 3.

Questionnaires used in each clinical trial to assess the knowledge of the health professionals involved in the management of pediatric chronic pain.

Author	Pediatric Chronic Pain Type	Children’s Age	Questionnaire
Al-Khotani et al. (2015) [45]	Orofacial pain and temporomandibular disorders	-	Survey adapted from Le Resche et al. and Tegelberg et al., validated
Bhatia et al. (2008) [36]	General chronic pain	-	Compiled by the authors
Edwards et al. (1994) [41]	Recurring abdominal pain	-	Compiled by the authors (10 question items plus demographic data and a description of the recurring abdominal pain patient)
Glazebrook et al. (2009) [44]	Medically unexplained pain	-	24 item questionnaire compiled by the authors (validated)
Heinsch et al. (2019) [39]	Abdominal pain and gastrointestinal symptoms	0–16 years	Compiled by the authors
Høie et al. (2017) [5]	General chronic pain	13–16 years	Interviews that focused on the perceptions of nurses on the causes of pain and how adolescents express and manage daily pain.
Koechlin et al. (2022) [43]	General chronic pain	-	Compiled by the authors
Miro et al. (2020) [35]	General chronic pain	-	Own questionnaire modified from a previous one developed by Miro et al. (23 questions)
Riaño et al. (1998) [42]	General chronic pain	-	Compiled by the authors (95 questions)
Sawni et al. (2007) [37]	General chronic pain	-	27 Questions; questionnaire based on a survey used in a previous study (Sikland_1998)
Schlarb et al. (2011) [40]	Recurring abdominal pain	-	Compiled by the authors
Schurman et al. (2014) [33]	Recurring abdominal pain	-	The Pediatrician’s Gastroenterology Practice Survey (PGPS) adapted
Thompson et al. (2010) [38]	Severe chronic pain	-	Compiled by the authors
Youssef et al. (2007) [43]	Recurring abdominal pain	-	Compiled by the authors (21 items)