The effectiveness of a combined exercise and psychological treatment programme on measures of nervous system sensitisation in adults with chronic musculoskeletal pain - a systematic review and meta-analysis.

Table 4 Quality of included case-control studies (Newcastle Ottawa Scale NOS)

Reference	Selection				Comparability	Outcome
Reference	Is the case definition adequate?	Representativeness of the cases	Selection of Controls	Definition of Controls	Comparability on the basis of design or analysis	Ascertainment of exposure	Same method ascertainment for cases and controls	Non-Response rate	Final Score
Vaegter et al. [53]	-	*	*	*	**	*	*	-	7

Legend
Each item in the table gets a maximum of 1 point, if it meets the evaluation criteria, which is recorded as “*”
‘Comparability on the basis of design or analysis’ has a maximum of 2 points available
“-” denotes that the study did not meet the evaluation criteria
There are 8 evaluation items in total, with a full score of 9 points
A higher score means the least risk of bias
NOS: Newcastle Ottawa Quality Assessment Scale

ISSN: 1471-2474