Table 1. Demographics of the three cohorts in this study.

	Cohort 1	Cohort 2	Cohort 3
Panels tested	SLE + Renal Function	CTD + Renal Function	RA + Renal Function
Number of subjects	13841	9995	20681
Genders	8954 F / 4887 M	6293 F / 3702 M	13482 F / 7199 M
Average age (±SD)	46 (±16)	46 (±16)	47 (±16)