Table 2.

	Before matching				After matching
	Autoinflammatory diseases (n=117)	non-Autoinflammatory diseases (n=1545)	Effect size (95% CI)	P-value	Autoinflammatory diseases (n=116)	non-Autoinflammatory diseases (n=116)	Effect size (95% CI)	P-value
Severity of COVID-19 Infection
Mild	90 (76.9)	1025 (66.3)	1.00 (ref)	0.064	89 (76.7)	92 (79.3)	1.00 (ref)	0.86
Moderate	17 (14.5)	347 (22.5)	0.56 (0.33 to 0.95)		17 (14.7)	16 (13.8)	1.10 (0.52 to 2.31)
Severe	10 (8.6)	173 (11.2)	0.66 (0.34 to 1.29)		10 (8.6)	8 (6.9)	1.29 (0.49 to 3.42)
Length of hospital stay (days),
median (IQR)	8 (4 to NA)	10 (5 to 22)	0.83 (0.51 to 1.36)	0.45	8 (4 to NA)	11 (4 to NA)	0.99 (0.52 to 1.88)	0.96
Death	6 (5.1)	79 (5.1)	1.00 (0.43 to 2.35)	0.99	6 (5.2)	5 (4.3)	1.21 (0.36 to 4.08)	0.76

Values are presented as no./total no. (percentage) unless otherwise indicated.

Matching on age+/- 7 years, sex and number of comorbidities. A 5-year-old male patient with asthma in autoinflammatory disease could not be matched with a control