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Table 3 Quality assessment of included studies

From: The clinical effectiveness of intra-articular corticosteroids for arthritis of the lower limb in juvenile idiopathic arthritis: a systematic review

Author Sequence generation/allocation concealment (internal validity) Blinding of participants, personnel and outcome assessors (internal validity) Incomplete outcome data (internal validity) Selective outcome reporting/statistical issues (internal validity) Interventions (internal validity) Generalisability (external validity) Internal validity External validity
Balogh et al., [30] Low Low Low High Low Low Low Low
Al-wahadneh, [31] N/A N/A Low Low High Low Low Low
Allen et al., [32] N/A N/A Low Low Low High Low High
Beukelman et al., [26] N/A N/A Low Low High High Low High
Cahill et al., [25] N/A N/A Low Low Low Low Low Low
Earley et al., [33] N/A N/A Low Low High Low Low Low
Eberhard et al., [34] N/A N/A Low Low High High Low High
Eich et al., [35] N/A N/A High Low Low High Low High
Hertzberger-ten Cate et al., [36] N/A N/A Low Low High Low Low Low
Honkanen et al., [37] N/A N/A Low Low High Low Low Low
Huppertz et al., [38] N/A N/A High Low Low Low Low Low
Laurell et al., [24] N/A N/A Low Low Low High Low High
Lepore et al., [39] N/A N/A Low Low Low Low Low Low
Marti et al., [19] N/A N/A Low Low Low High Low High
Papadopoulou et al., [40] N/A N/A Low High High High Low High
Ravelli et al., [41] N/A N/A Low Low Low High Low High
Remedios et al., [42] N/A N/A Low Low Low Low Low Low
Sherry et al., [43] N/A N/A Low High High Low Low Low
Sornay-Soares et al., [44] N/A N/A Low Low High High Low High
Verma et al., [45] N/A N/A Low Low Low Low Low Low
Zulian et al., [46] N/A N/A High High High Low High Low