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Table 4 Number of patients experiencing adverse events at system organ class

From: Efficacy and safety of single injection of cross-linked sodium hyaluronate vs. three injections of high molecular weight sodium hyaluronate for osteoarthritis of the knee: a double-blind, randomized, multi-center, non-inferiority study

System Organ Class HMWHA XLHA
N = 146 (%) N = 139 (%)
Eye disorders 1 (0.7) 3 (2.2)
Gastrointestinal disorders 9 (6.2) 4 (2.9)
General disorders and administration site conditions 4 (2.7) 9 (6.5)
Infections and infestations 9 (6.2) 13 (9.4)
Injury, poisoning and procedural complications 2 (1.4) 3 (2.2)
Investigations 0 (0) 2 (1.4)
Metabolism and nutrition disorders 1 (0.7) 1 (0.7)
Musculoskeletal and connective tissue disorders 15 (10.3) 12 (8.6)
Neoplasms benign, malignant and unspecified (including cysts and polyps) 0 (0) 1 (0.7)
Nervous system disorders 6 (4.1) 5 (3.6)
Psychiatric disorders 1 (0.7) 0 (0)
Respiratory, thoracic and mediastinal disorders 4 (2.7) 2 (1.4)
Skin and subcutaneous tissue disorders 1 (0.7) 6 (4.3)
Surgical and medical procedures 1 (0.7) 1 (0.7)
Vascular disorders 1 (0.7) 1 (0.7)