Effect of biological disease-modifying antirheumatic drugs on body composition in patients with rheumatoid arthritis: a systematic review and meta-analysis

Table 1 Quality assessment of studies by Newcastle–Ottawa Scale

References	Selection	Comparability	Outcome	Overall quality
NOS cohort
Serelis et al. [11]	***	–	***	6
Kopec-Medrek et al. [15]	***	*	***	7
Toussirot et al. [16]	***	*	***	7
Tournadre et al. [23]	***	–	***	6
Van den Oever et al. [20]	***	*	***	7
Toussirot et al. [21]	***	–	***	6
Hasegawa et al. [27]	***	–	***	6
Vial et al. [28]	****	**	***	9
Metsios et al. [24]	***	–	**	5
Ferraz-Amaro et al. [13]	****	**	***	9
Chih-Yen Chen et al. [25]	****	**	***	9
Brown et al. [14]	***	–	***	6
Sfriso et al. [17]	****	**	***	9
Chapman et al. [26]	***	–	***	6
Choi et al. [22]	****	**	***	9
NOS transversal
Ramos et al. [18]	*****	**	***	10

NOS, Newcastle–Ottawa Scale
Each star means the fulfillment of a study quality criteria and can be assigned in cohort studies, maximum of 9 (selection 0–4; comparability 0–2; outcomes 0–3) and for cross-sectional studies maximum of 10 (selection 0–5; comparability 0–2; outcomes 0–3)
Each “*” is one star counting in the score