Table 1.

Inclusion and exclusion criteria for Arms A and B of the study.

Inclusion criteria	Arm A	Arm B
Age 18–70 years	Yes	Yes
Traumatic SCI	Yes	Yes
Atraumatic sudden onset SCI	No	Yes
Within 10 days post-SCI	Yes	No
History of recurrent UTI	No	Yes
Exclusion criteria
Admission to hospital outside Western Australia	Yes	No
Inability to commence HA + CS Within 10 days of SCI	Yes	No
Spontaneous voiding	Yes	Yes
Bladder/urethral trauma on Admission	Yes	Yes
Bladder cancer/other bladder Pathology	Yes	Yes
Known hypersensitivity to HA or CS	Yes	Yes
UTI before commencing Study intervention	Yes	No
Current pregnancy	Yes	Yes
History of neurological disorder	Yes	Yes
Inability to provide consent	Yes	Yes
History of autonomic Dysreflexia with urological procedures	No	Yes

CS = chrondroitin sulphate, HA = hyaluronic acid, SCI = spinal cord injury, UTI = urinary tract infection.