Table 2.

Number of cases and incidence rate (per 100 000 population) of SLE by different classification criteria, overall and by age and sex groups, Olmsted County, Minnesota, 2000–2018^a

	ACR 97		SLICC		EULAR/ACR
	No. of cases	Incidence rate	No. of cases	Incidence rate	No. of cases	Incidence rate
Overall by age group
0–17	3	0.4	3	0.4	3	0.4
18–29	11	2.2	16	3.2	16	3.2
30–39	25	6.3	33	8.4	32	8.1
40–49	18	4.8	17	4.5	25	6.6
50–59	14	4.0	19	5.4	21	6.0
60–69	11	4.7	11	4.7	16	6.9
70–79	5	3.5	8	5.5	7	4.9
≥80	5	5.1	6	6.1	6	6.1
Totalb	92	3.3 (2.6, 3.9)d	113	4.0 (3.3, 4.7)d	126	4.5 (3.7, 5.2)d
Females by age group
0–17	2	0.6	2	0.6	2	0.6
18–29	9	3.4	13	4.8	13	4.8
30–39	22	10.8	29	14.2	28	13.7
40–49	14	7.2	14	7.2	19	9.7
50–59	13	7.1	17	9.2	18	9.8
60–69	8	6.6	9	7.3	12	9.8
70–79	2	2.5	6	7.6	5	6.3
≥80	3	4.8	4	6.5	4	6.5
Totalc	73	5.0 (3.8, 6.2)d	94	6.4 (5.1, 7.7)d	101	6.9 (5.5, 8.2)d
Males by age group
0–17	1	0.3	1	0.3	1	0.3
18–29	2	0.9	3	1.3	3	1.3
30–39	3	1.6	4	2.1	4	2.1
40–49	4	2.2	3	1.7	6	3.3
50–59	1	0.6	2	1.2	3	1.8
60–69	3	2.8	2	1.8	4	3.7
70–79	3	4.6	2	3.1	2	3.1
≥80	2	5.6	2	5.6	2	5.6
Totalc	19	1.5 (0.8, 2.2)d	19	1.5 (0.8, 2.2)d	25	1.9 (1.2, 2.7)d

^aRates are per 100 000 population. Denominator data are based on the Rochester Epidemiology Project census (see reference in text).

^bAge and sex adjusted to the 2000 projected US population.

^cAge adjusted to the 2000 projected US population.

^d95% CIs.