All significant variable model		Most parsimonious model
	Unadjusted OR (95% CI)	Adjusted OR (95%CI)*	Adjusted p-value*	Adjusted OR (95%CI)&	Adjusted p-value&
Female	0.45 (0.20-1.02)	0.33 (0.05-2.23)		0.34 (0.09-1.36)	0.128
Age (years)	1.08 (1.05-1.11)	1.04 (0.97-1.10)	0.224	1.06 (1.01-1.10)	0.010
Inflammatory arthritis	0.11 (0.05-0.28)	0.14 (0.02-0.95)	0.044	0.09 (0.02-0.32)	<0.001
Connective Tissue Disease and Other	1.56 (0.62 - 3.92)
No comorbidities	0.11 (0.04-0.30)	0.76 (0.09-6.58)	0.802
Most common comorbidities
COPD / asthma	4.77 (1.23-18.54)	3.09 (0.16-60.07)	0.456
CVD	3.40 (1.31-8.85)	0.11 (0.01-1.88)	0.129
Hypertension	3.71 (1.52-9.08)	0.56 (0.04-7.94)	0.668
Obesity	0.58 (0.10-3.30)
Number of comorbidities (Median, IQR)	3.01 (1.92-4.72)	2.99 (0.59-15.02)	0.184	1.93 (1.11-3.35)	0.020
Never Smoker	ref.		0.889
Ever Smoker	3.17 (1.18-8.89)	1.19 (0.10-13.68)
Medication prior to COVID-19 diagnosis
Glucocorticoids	9.26 (1.95-43.89)	18.14 (1.13-290.81)	0.041	15.01 (1.77-127.16)	0.013
csDMARD monotherapy	0.42 (0.17-1.00)
b/tsDMARD (monotherapy or in combination with csDMARD)	0.24 (0.10-0.58)	1.36 (0.19-9.72)	0.557